c[?7lSeaBIOS (version 1.11.1-1) iPXE (http://ipxe.org) 00:03.0 C980 PCI2.10 PnP PMM+BFF90190+BFED0190 C980 Press Ctrl-B to configure iPXE (PCI 00:03.0)... Booting from ROM..c[?7learly console in extract_kernel input_data: 0x000000000547e3b1 input_len: 0x0000000000f7feca output: 0x0000000001000000 output_len: 0x0000000003ce8b80 kernel_total_size: 0x0000000005426000 trampoline_32bit: 0x000000000009d000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Linux version 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty (anders@compilator) (gcc version 8.2.0 (Debian 8.2.0-9)) #3 SMP Thu Dec 13 11:39:01 CET 2018 [ 0.000000] Command line: root=/dev/root rootfstype=9p rootflags=trans=virtio console=ttyS0 initcall_debug softlockup_panic=0 earlyprintk=ttyS0 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Hygon HygonGenuine [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: x87 FPU will use FXSAVE [ 0.000000] BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bffdffff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bffe0000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000] printk: bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.8 present. [ 0.000000] DMI: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 0.000000] tsc: Fast TSC calibration using PIT [ 0.000000] tsc: Detected 3497.960 MHz processor [ 0.146540] last_pfn = 0xbffe0 max_arch_pfn = 0x400000000 [ 0.152621] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.209332] found SMP MP-table at [mem 0x000f5d50-0x000f5d5f] mapped at [(____ptrval____)] [ 0.230989] check: Scanning 1 areas for low memory corruption [ 1.124573] ACPI: Early table checksum verification disabled [ 1.128495] ACPI: RSDP 0x00000000000F5B80 000014 (v00 BOCHS ) [ 1.129572] ACPI: RSDT 0x00000000BFFE157C 000030 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 1.131662] ACPI: FACP 0x00000000BFFE1458 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 1.134053] ACPI: DSDT 0x00000000BFFE0040 001418 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 1.135161] ACPI: FACS 0x00000000BFFE0000 000040 [ 1.136044] ACPI: APIC 0x00000000BFFE14CC 000078 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 1.137036] ACPI: HPET 0x00000000BFFE1544 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 1.151239] No NUMA configuration found [ 1.151780] Faking a node at [mem 0x0000000000000000-0x00000000bffdffff] [ 1.153966] NODE_DATA(0) allocated [mem 0xbffc7000-0xbffdffff] [ 1.176223] Zone ranges: [ 1.176871] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.177574] DMA32 [mem 0x0000000001000000-0x00000000bffdffff] [ 1.178195] Normal empty [ 1.178700] Device empty [ 1.179202] Movable zone start for each node [ 1.179714] Early memory node ranges [ 1.180258] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.180831] node 0: [mem 0x0000000000100000-0x00000000bffdffff] [ 1.181790] Zeroed struct page in unavailable ranges: 98 pages [ 1.182173] Initmem setup node 0 [mem 0x0000000000001000-0x00000000bffdffff] [ 1.578179] kmemleak: Kernel memory leak detector disabled [ 1.629819] kasan: KernelAddressSanitizer initialized [ 1.631568] ACPI: PM-Timer IO Port: 0x608 [ 1.633867] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 1.635810] IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23 [ 1.637054] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 1.638170] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 1.638835] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 1.639619] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 1.640254] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 1.642731] Using ACPI (MADT) for SMP configuration information [ 1.643539] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 1.644890] smpboot: Allowing 1 CPUs, 0 hotplug CPUs [ 1.647877] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 1.648623] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 1.649205] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 1.649771] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 1.650716] [mem 0xc0000000-0xfffbffff] available for PCI devices [ 1.651288] Booting paravirtualized kernel on bare hardware [ 1.652885] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns [ 10.477579] random: get_random_bytes called from start_kernel+0x116/0x8c0 with crng_init=0 [ 10.479622] setup_percpu: NR_CPUS:64 nr_cpumask_bits:1 nr_cpu_ids:1 nr_node_ids:1 [ 10.486098] percpu: Embedded 553 pages/cpu @(____ptrval____) s2228224 r8192 d28672 u4194304 [ 10.493570] Built 1 zonelists, mobility grouping on. Total pages: 773993 [ 10.494173] Policy zone: DMA32 [ 10.495291] Kernel command line: root=/dev/root rootfstype=9p rootflags=trans=virtio console=ttyS0 initcall_debug softlockup_panic=0 earlyprintk=ttyS0 [ 16.898163] Memory: 175624K/3145208K available (24582K kernel code, 13300K rwdata, 7784K rodata, 4648K init, 27744K bss, 551384K reserved, 0K cma-reserved) [ 16.899303] random: get_random_u64 called from kmem_cache_open+0x34/0x540 with crng_init=0 [ 16.940829] random: get_random_u64 called from cache_random_seq_create+0x80/0x160 with crng_init=0 [ 16.973074] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 17.210711] ODEBUG: selftest passed [ 17.214426] ftrace: allocating 35268 entries in 138 pages [ 18.129735] Running RCU self tests [ 18.130496] rcu: Hierarchical RCU implementation. [ 18.131010] rcu: RCU event tracing is enabled. [ 18.131513] rcu: RCU dyntick-idle grace-period acceleration is enabled. [ 18.132043] rcu: RCU lockdep checking is enabled. [ 18.132590] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=1. [ 18.133160] rcu: RCU callback double-/use-after-free debug enabled. [ 18.133699] rcu: RCU debug extended QS entry/exit. [ 18.134224] Tasks RCU enabled. [ 18.134755] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies. [ 18.135397] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1 [ 18.796319] NR_IRQS: 4352, nr_irqs: 256, preallocated irqs: 16 [ 18.856805] Console: colour VGA+ 80x25 [ 18.863464] printk: console [ttyS0] enabled [ 18.863464] printk: console [ttyS0] enabled [ 18.865046] printk: bootconsole [earlyser0] disabled [ 18.865046] printk: bootconsole [earlyser0] disabled [ 18.866612] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 18.867442] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 18.868104] ... MAX_LOCK_DEPTH: 48 [ 18.868767] ... MAX_LOCKDEP_KEYS: 8191 [ 18.869438] ... CLASSHASH_SIZE: 4096 [ 18.870112] ... MAX_LOCKDEP_ENTRIES: 32768 [ 18.870788] ... MAX_LOCKDEP_CHAINS: 65536 [ 18.871503] ... CHAINHASH_SIZE: 32768 [ 18.872180] memory used by lock dependency info: 7775 kB [ 18.872906] per task-struct memory footprint: 2688 bytes [ 18.873627] ------------------------ [ 18.874247] | Locking API testsuite: [ 18.874897] ---------------------------------------------------------------------------- [ 18.875748] | spin |wlock |rlock |mutex | wsem | rsem | [ 18.876573] -------------------------------------------------------------------------- [ 18.877778] A-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 18.958413] A-B-B-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 19.042357] A-B-B-C-C-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 19.129826] A-B-C-A-B-C deadlock: ok | ok | ok | ok | ok | ok | ok | [ 19.216436] A-B-B-C-C-D-D-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 19.305823] A-B-C-D-B-D-D-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 19.394987] A-B-C-D-B-C-D-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 19.483746] double unlock: ok | ok | ok | ok | ok | ok | ok | [ 19.564466] initialize held: ok | ok | ok | ok | ok | ok | ok | [ 19.643893] -------------------------------------------------------------------------- [ 19.644710] recursive read-lock: | ok | | ok | [ 19.668968] recursive read-lock #2: | ok | | ok | [ 19.693156] mixed read-write-lock: | ok | | ok | [ 19.716865] mixed write-read-lock: | ok | | ok | [ 19.740650] mixed read-lock/lock-write ABBA: |FAILED| | ok | [ 19.764425] mixed read-lock/lock-read ABBA: | ok | | ok | [ 19.789334] mixed write-lock/lock-write ABBA: | ok | | ok | [ 19.813692] -------------------------------------------------------------------------- [ 19.815356] hard-irqs-on + irq-safe-A/12: ok | ok | ok | [ 19.850998] soft-irqs-on + irq-safe-A/12: ok | ok | ok | [ 19.887168] hard-irqs-on + irq-safe-A/21: ok | ok | ok | [ 19.923044] soft-irqs-on + irq-safe-A/21: ok | ok | ok | [ 19.958708] sirq-safe-A => hirqs-on/12: ok | ok | ok | [ 19.994555] sirq-safe-A => hirqs-on/21: ok | ok | ok | [ 20.030514] hard-safe-A + irqs-on/12: ok | ok | ok | [ 20.066211] soft-safe-A + irqs-on/12: ok | ok | ok | [ 20.102137] hard-safe-A + irqs-on/21: ok | ok | ok | [ 20.137325] soft-safe-A + irqs-on/21: ok | ok | ok | [ 20.172459] hard-safe-A + unsafe-B #1/123: ok | ok | ok | [ 20.208669] soft-safe-A + unsafe-B #1/123: ok | ok | ok | [ 20.245670] hard-safe-A + unsafe-B #1/132: ok | ok | ok | [ 20.282348] soft-safe-A + unsafe-B #1/132: ok | ok | ok | [ 20.319152] hard-safe-A + unsafe-B #1/213: ok | ok | ok | [ 20.356134] soft-safe-A + unsafe-B #1/213: ok | ok | ok | [ 20.392997] hard-safe-A + unsafe-B #1/231: ok | ok | ok | [ 20.428855] soft-safe-A + unsafe-B #1/231: ok | ok | ok | [ 20.465683] hard-safe-A + unsafe-B #1/312: ok | ok | ok | [ 20.501657] soft-safe-A + unsafe-B #1/312: ok | ok | ok | [ 20.537752] hard-safe-A + unsafe-B #1/321: ok | ok | ok | [ 20.574258] soft-safe-A + unsafe-B #1/321: ok | ok | ok | [ 20.610919] hard-safe-A + unsafe-B #2/123: ok | ok | ok | [ 20.647719] soft-safe-A + unsafe-B #2/123: ok | ok | ok | [ 20.684741] hard-safe-A + unsafe-B #2/132: ok | ok | ok | [ 20.721446] soft-safe-A + unsafe-B #2/132: ok | ok | ok | [ 20.757511] hard-safe-A + unsafe-B #2/213: ok | ok | ok | [ 20.794211] soft-safe-A + unsafe-B #2/213: ok | ok | ok | [ 20.831175] hard-safe-A + unsafe-B #2/231: ok | ok | ok | [ 20.867723] soft-safe-A + unsafe-B #2/231: ok | ok | ok | [ 20.903701] hard-safe-A + unsafe-B #2/312: ok | ok | ok | [ 20.939429] soft-safe-A + unsafe-B #2/312: ok | ok | ok | [ 20.976446] hard-safe-A + unsafe-B #2/321: ok | ok | ok | [ 21.013171] soft-safe-A + unsafe-B #2/321: ok | ok | ok | [ 21.049045] hard-irq lock-inversion/123: ok | ok | ok | [ 21.085859] soft-irq lock-inversion/123: ok | ok | ok | [ 21.122103] hard-irq lock-inversion/132: ok | ok | ok | [ 21.158842] soft-irq lock-inversion/132: ok | ok | ok | [ 21.195614] hard-irq lock-inversion/213: ok | ok | ok | [ 21.232450] soft-irq lock-inversion/213: ok | ok | ok | [ 21.268734] hard-irq lock-inversion/231: ok | ok | ok | [ 21.305431] soft-irq lock-inversion/231: ok | ok | ok | [ 21.343146] hard-irq lock-inversion/312: ok | ok | ok | [ 21.379884] soft-irq lock-inversion/312: ok | ok | ok | [ 21.416812] hard-irq lock-inversion/321: ok | ok | ok | [ 21.453444] soft-irq lock-inversion/321: ok | ok | ok | [ 21.490235] hard-irq read-recursion/123: ok | [ 21.503043] soft-irq read-recursion/123: ok | [ 21.515902] hard-irq read-recursion/132: ok | [ 21.528721] soft-irq read-recursion/132: ok | [ 21.541415] hard-irq read-recursion/213: ok | [ 21.554216] soft-irq read-recursion/213: ok | [ 21.567136] hard-irq read-recursion/231: ok | [ 21.580854] soft-irq read-recursion/231: ok | [ 21.593881] hard-irq read-recursion/312: ok | [ 21.606751] soft-irq read-recursion/312: ok | [ 21.619540] hard-irq read-recursion/321: ok | [ 21.632266] soft-irq read-recursion/321: ok | [ 21.645178] -------------------------------------------------------------------------- [ 21.645827] | Wound/wait tests | [ 21.646357] --------------------- [ 21.646906] ww api failures: ok | ok | ok | [ 21.685596] ww contexts mixing: ok | ok | [ 21.709091] finishing ww context: ok | ok | ok | ok | [ 21.755691] locking mismatches: ok | ok | ok | [ 21.790669] EDEADLK handling: ok | ok | ok | ok | ok | ok | ok | ok | ok | ok | [ 21.911242] spinlock nest unlocked: ok | [ 21.923182] ----------------------------------------------------- [ 21.923775] |block | try |context| [ 21.924366] ----------------------------------------------------- [ 21.924971] context: ok | ok | ok | [ 21.960816] try: ok | ok | ok | [ 21.995475] block: ok | ok | ok | [ 22.030353] spinlock: ok | ok | ok | [ 22.066693] ------------------------------------------------------- [ 22.067315] Good, all 261 testcases passed! | [ 22.067856] --------------------------------- [ 22.075273] ACPI: Core revision 20181031 [ 22.117643] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 22.135077] APIC: Switch to symmetric I/O mode setup [ 22.179684] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 22.201639] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x326bc9c7afb, max_idle_ns: 440795287713 ns [ 22.207050] Calibrating delay loop (skipped), value calculated using timer frequency.. 6995.92 BogoMIPS (lpj=13991840) [ 22.207652] pid_max: default: 32768 minimum: 301 [ 22.242916] LSM: Security Framework initializing [ 22.244535] Yama: becoming mindful. [ 22.250321] LoadPin: ready to pin (currently enforcing) [ 22.252133] SELinux: Initializing. [ 22.276474] *** VALIDATE SELinux *** [ 22.277661] AppArmor: AppArmor disabled by boot time parameter [ 22.518014] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 22.628832] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 22.638999] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 22.645168] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 22.764409] *** VALIDATE proc *** [ 22.825728] *** VALIDATE cgroup1 *** [ 22.826460] *** VALIDATE cgroup2 *** [ 22.836525] mce: CPU supports 10 MCE banks [ 22.841855] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 22.842509] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 22.844015] Spectre V2 : Spectre mitigation: LFENCE not serializing, switching to generic retpoline [ 22.844745] Spectre V2 : Mitigation: Full generic retpoline [ 22.845345] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 22.846507] Speculative Store Bypass: Vulnerable [ 23.176756] random: fast init done [ 23.471232] debug: unmapping init [mem 0xffffffff848e1000-0xffffffff848e6fff] [ 23.508954] _warn_unseeded_randomness: 133 callbacks suppressed [ 23.509429] random: get_random_u64 called from copy_process+0x5d3/0x4410 with crng_init=1 [ 23.563652] smpboot: CPU0: AMD QEMU Virtual CPU version 2.5+ (family: 0x6, model: 0x6, stepping: 0x3) [ 23.624875] Performance Events: PMU not available due to virtualization, using software events only. [ 23.649842] rcu: Hierarchical SRCU implementation. [ 23.836815] NMI watchdog: Perf NMI watchdog permanently disabled [ 23.872777] smp: Bringing up secondary CPUs ... [ 23.873629] smp: Brought up 1 node, 1 CPU [ 23.874298] smpboot: Max logical packages: 1 [ 23.875147] ---------------- [ 23.876366] | NMI testsuite: [ 23.876898] -------------------- [ 23.877430] remote IPI: ok | [ 23.878175] local IPI: ok | [ 23.880473] -------------------- [ 23.881052] Good, all 2 testcases passed! | [ 23.881611] --------------------------------- [ 23.882323] smpboot: Total of 1 processors activated (6995.92 BogoMIPS) [ 23.972190] node 0 initialised, 604550 pages in 4ms [ 23.989229] pgdatinit0 (15) used greatest stack depth: 29864 bytes left [ 24.005106] random: get_random_u64 called from kmem_cache_open+0x34/0x540 with crng_init=1 [ 24.007212] random: get_random_u64 called from cache_random_seq_create+0x80/0x160 with crng_init=1 [ 24.086381] devtmpfs: initialized [ 24.185491] x86/mm: Memory block size: 128MB [ 24.694623] gcov: version magic: 0x4138322a [ 24.736492] _warn_unseeded_randomness: 1 callbacks suppressed [ 24.736790] random: get_random_u32 called from bucket_table_alloc+0xec/0x2c0 with crng_init=1 [ 24.741031] random: get_random_u64 called from kmem_cache_open+0x34/0x540 with crng_init=1 [ 24.742484] random: get_random_u64 called from cache_random_seq_create+0x80/0x160 with crng_init=1 [ 25.001299] workqueue: round-robin CPU selection forced, expect performance impact [ 25.521653] DMA-API: preallocated 65548 debug entries [ 25.522357] DMA-API: debugging enabled by kernel config [ 25.524465] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 25.529969] futex hash table entries: 256 (order: 3, 32768 bytes) [ 25.540378] Running postponed tracer tests: [ 25.548104] Testing tracer function: PASSED [ 55.050933] Testing dynamic ftrace: PASSED [ 58.070886] Testing dynamic ftrace ops #1: [ 66.070568] (1 0 1 0 0) [ 66.071429] (1 1 2 0 0) [ 82.153587] (2 1 3 0 245426) [ 82.154636] (2 2 4 0 245618) PASSED [ 98.206649] Testing dynamic ftrace ops #2: [ 122.490100] (1 0 1 240273 0) [ 122.491087] (1 1 2 240541 0) [ 140.929537] (2 1 3 1 310982) [ 140.932901] (2 2 4 375 311356) PASSED [ 157.173335] Testing ftrace recursion: PASSED [ 159.267109] Testing ftrace recursion safe: PASSED [ 161.362546] Testing ftrace regs: PASSED [ 163.452406] Testing tracer nop: PASSED [ 163.454867] Testing tracer irqsoff: [ 187.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 187.859652] Modules linked in: [ 187.859652] irq event stamp: 10179498 [ 187.859652] hardirqs last enabled at (10179497): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 187.859652] hardirqs last disabled at (10179498): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 187.859652] softirqs last enabled at (10179234): [] __do_softirq+0x515/0x701 [ 187.859652] softirqs last disabled at (10179217): [] irq_exit+0x10a/0x140 [ 187.859652] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 187.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 187.859652] RIP: 0010:__phys_addr+0x5/0x120 [ 187.859652] Code: 54 00 48 8b 05 3c ba 10 02 48 01 d8 5b c3 e8 32 83 25 00 0f 0b 48 c7 c7 60 14 3a 83 e8 a5 73 aa 00 0f 1f 40 00 cc 0b 3a ed 1e <41> 54 45 31 e4 55 48 89 fd 53 bb 00 00 00 80 e8 07 83 25 00 48 01 [ 187.859652] RSP: 0018:ffff88800f11fa28 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 187.859652] RAX: ffff88800f111000 RBX: ffff88800f11fb40 RCX: ffffffff816ee1e0 [ 187.859652] RDX: 0000000000000000 RSI: ffffffff816ee1ee RDI: ffff88800f11fb40 [ 187.859652] RBP: 0000000000000005 R08: ffff88800f111000 R09: ffffed1001e23f68 [ 187.859652] R10: ffffed1001e23f68 R11: 0000000000000004 R12: 0000000000000001 [ 187.859652] R13: 0000000000000000 R14: ffff88800f11fb45 R15: ffff88800f11fb40 [ 187.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 187.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 187.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 187.859652] Call Trace: [ 187.859652] __check_object_size+0xc6/0x752 [ 187.859652] ? __probe_kernel_read+0x95/0x120 [ 187.859652] __probe_kernel_read+0xa2/0x120 [ 187.859652] ? attribute_show+0x40/0x40 [ 187.859652] ? attribute_show+0x40/0x40 [ 187.859652] add_break+0x84/0x110 [ 187.859652] ? ftrace_write+0x60/0x60 [ 187.859652] ? hash_contains_ip+0x2f/0x440 [ 187.859652] ? hash_contains_ip+0x1f8/0x440 [ 187.859652] ? attribute_show+0x40/0x40 [ 187.859652] ? ftrace_get_addr_curr+0x2a6/0x340 [ 187.859652] ? ftrace_check_record+0x27/0x330 [ 187.859652] ftrace_replace_code+0xb7/0x350 [ 187.859652] ? ftrace_int3_handler+0x70/0x70 [ 187.859652] ? run_sync+0xe0/0xe0 [ 187.859652] ftrace_modify_all_code+0x141/0x2b0 [ 187.859652] arch_ftrace_update_code+0x22/0x40 [ 187.859652] ftrace_run_update_code+0x2b/0xd0 [ 187.859652] ftrace_shutdown+0x2a5/0x560 [ 187.859652] unregister_ftrace_function+0x2c/0x60 [ 187.859652] unregister_irqsoff_function+0x4c/0x90 [ 187.859652] irqsoff_tracer_reset+0x4d/0xc0 [ 187.859652] trace_selftest_startup_irqsoff+0x26c/0x340 [ 187.859652] ? tracing_set_time_stamp_abs+0x190/0x190 [ 187.859652] run_tracer_selftest+0x285/0x382 [ 187.859652] ? trace_event_define_fields_preemptirq_template+0x71/0x71 [ 187.859652] register_tracer+0x290/0x3f8 [ 187.859652] init_irqsoff_tracer+0x13/0x1d [ 187.859652] do_one_initcall+0x101/0x64a [ 187.859652] ? perf_trace_initcall_level+0x280/0x280 [ 187.859652] ? __lock_is_held+0x38/0xd0 [ 187.859652] ? check_flags+0x250/0x250 [ 187.859652] kernel_init_freeable+0x4a6/0x58c [ 187.859652] ? rest_init+0x44d/0x44d [ 187.859652] kernel_init+0x11/0x1e3 [ 187.859652] ? rest_init+0x44d/0x44d [ 187.859652] ret_from_fork+0x3a/0x50 [ 197.330464] PASSED [ 197.333393] Testing tracer wakeup: [ 232.022228] ftrace-test (19) used greatest stack depth: 29672 bytes left [ 232.029267] PASSED [ 232.030552] Testing tracer wakeup_rt: PASSED [ 265.218389] Testing tracer wakeup_dl: PASSED [ 298.364521] Testing tracer function_graph: [ 323.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 323.859652] Modules linked in: [ 323.859652] irq event stamp: 19353098 [ 323.859652] hardirqs last enabled at (19353097): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 323.859652] hardirqs last disabled at (19353098): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 323.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 323.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 323.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 323.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 323.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 323.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 323.859652] RSP: 0018:ffff88800f11faa0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 323.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 323.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 323.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 323.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 323.859652] R13: ffff88800f11faf0 R14: 0000000000000202 R15: ffff8880a38b2588 [ 323.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 323.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 323.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 323.859652] Call Trace: [ 323.859652] ? ftrace_write+0x3d/0x60 [ 323.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 323.859652] ? function_graph_enter+0x370/0x370 [ 323.859652] ? __check_object_size+0x2d4/0x752 [ 323.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 323.859652] ? ftrace_replace_code+0x2d0/0x350 [ 323.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 323.859652] return_to_handler+0x15/0x36 [ 323.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 323.859652] ? ftrace_write+0x3d/0x60 [ 323.859652] ? ftrace_replace_code+0x2fb/0x350 [ 323.859652] ? ftrace_int3_handler+0x70/0x70 [ 323.859652] ? wait_for_completion+0x260/0x260 [ 323.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 323.859652] ? arch_ftrace_update_code+0x22/0x40 [ 323.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 323.859652] ? ftrace_startup_enable+0x3a/0x70 [ 323.859652] ? ftrace_startup+0x162/0x200 [ 323.859652] ? register_ftrace_graph+0x658/0x6b0 [ 323.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 323.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 323.859652] ? find_next_bit+0xba/0xd0 [ 323.859652] ? run_tracer_selftest+0x285/0x382 [ 323.859652] ? init_graph_tracefs+0x49/0x49 [ 323.859652] ? register_tracer+0x290/0x3f8 [ 323.859652] ? init_graph_trace+0xac/0xb4 [ 323.859652] ? do_one_initcall+0x101/0x64a [ 323.859652] ? perf_trace_initcall_level+0x280/0x280 [ 323.859652] ? __lock_is_held+0x38/0xd0 [ 323.859652] ? check_flags+0x250/0x250 [ 323.859652] ? kernel_init_freeable+0x4a6/0x58c [ 323.859652] ? rest_init+0x44d/0x44d [ 323.859652] ? kernel_init+0x11/0x1e3 [ 323.859652] ? rest_init+0x44d/0x44d [ 323.859652] ? ret_from_fork+0x3a/0x50 [ 324.367539] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 324.367652] rcu: (detected by 0, t=6502 jiffies, g=-1115, q=2) [ 324.367652] rcu: All QSes seen, last rcu_sched kthread activity 6502 (4294967850-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 324.367652] swapper/0 R running task 28008 1 0 0x80000008 [ 324.367652] Call Trace: [ 324.367652] [ 324.367652] ? ftrace_graph_caller+0xa0/0xa0 [ 324.367652] sched_show_task+0x28f/0x310 [ 324.367652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 324.367652] ? ftrace_graph_caller+0xa0/0xa0 [ 324.367652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 324.367652] update_process_times+0x2d/0x70 [ 324.367652] tick_periodic+0x5c/0x110 [ 324.367652] tick_handle_periodic+0x30/0xd0 [ 324.367652] smp_apic_timer_interrupt+0xb7/0x360 [ 324.367652] apic_timer_interrupt+0xf/0x20 [ 324.367652] [ 324.367652] RIP: 0010:trace_graph_entry+0x6e9/0x840 [ 324.367652] Code: 42 ff ff 48 c7 c7 10 10 37 83 e8 42 8a 26 00 48 83 3d 5a f4 f5 01 00 0f 84 fc 00 00 00 48 83 05 5c 8e 1d 04 01 4c 89 ff 57 9d <66> 66 90 66 90 48 83 05 6a 8e 1d 04 01 e9 4c f9 ff ff 4c 89 ff 48 [ 324.367652] RSP: 0018:ffff88800f11f908 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 324.367652] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81411bae [ 324.367652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000206 [ 324.367652] RBP: ffff88800f11f988 R08: ffffed1014704706 R09: 0000000000000000 [ 324.367652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3823828 [ 324.367652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000206 [ 324.367652] ? trace_graph_entry+0x6ce/0x840 [ 324.367652] trace_graph_entry_watchdog+0x23/0xc0 [ 324.367652] function_graph_enter+0x275/0x370 [ 324.367652] ? ftrace_graph_stop+0x10/0x10 [ 324.367652] ? __phys_addr+0x120/0x120 [ 324.367652] ? __phys_addr+0x120/0x120 [ 324.367652] ? __check_object_size+0xa4/0x752 [ 324.367652] prepare_ftrace_return+0x7b/0xa0 [ 324.367652] ftrace_graph_caller+0x62/0xa0 [ 324.367652] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 324.367652] ? __check_object_size+0x8d/0x752 [ 324.367652] ? __check_object_size+0x9c/0x752 [ 324.367652] ? __virt_addr_valid+0x5/0x1df [ 324.367652] __virt_addr_valid+0x5/0x1df [ 324.367652] ? ftrace_graph_caller+0xa0/0xa0 [ 324.367652] __check_object_size+0xa4/0x752 [ 324.367652] ? __probe_kernel_write+0x90/0x120 [ 324.367652] __probe_kernel_write+0xa0/0x120 [ 324.367652] ? ftrace_regs_caller_end+0x14/0x14 [ 324.367652] ftrace_write+0x22/0x60 [ 324.367652] ftrace_replace_code+0x2fb/0x350 [ 324.367652] ? ftrace_int3_handler+0x70/0x70 [ 324.367652] ? wait_for_completion+0x260/0x260 [ 324.367652] ftrace_modify_all_code+0x141/0x2b0 [ 324.367652] arch_ftrace_update_code+0x22/0x40 [ 324.367652] ftrace_run_update_code+0x2b/0xd0 [ 324.367652] ftrace_startup_enable+0x3a/0x70 [ 324.367652] ftrace_startup+0x162/0x200 [ 324.367652] register_ftrace_graph+0x658/0x6b0 [ 324.367652] trace_selftest_startup_function_graph+0xe4/0x238 [ 324.367652] ? trace_selftest_startup_function+0x91f/0x91f [ 324.367652] ? find_next_bit+0xba/0xd0 [ 324.367652] run_tracer_selftest+0x285/0x382 [ 324.367652] ? init_graph_tracefs+0x49/0x49 [ 324.367652] register_tracer+0x290/0x3f8 [ 324.367652] init_graph_trace+0xac/0xb4 [ 324.367652] do_one_initcall+0x101/0x64a [ 324.367652] ? perf_trace_initcall_level+0x280/0x280 [ 324.367652] ? __lock_is_held+0x38/0xd0 [ 324.367652] ? check_flags+0x250/0x250 [ 324.367652] kernel_init_freeable+0x4a6/0x58c [ 324.367652] ? rest_init+0x44d/0x44d [ 324.367652] kernel_init+0x11/0x1e3 [ 324.367652] ? rest_init+0x44d/0x44d [ 324.367652] ret_from_fork+0x3a/0x50 [ 324.367652] rcu: rcu_sched kthread starved for 6502 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 324.367652] rcu: RCU grace-period kthread stack dump: [ 324.367652] rcu_sched R running task 30600 10 2 0x80000000 [ 324.367652] Call Trace: [ 324.367652] ? __schedule+0x6af/0x1160 [ 324.367652] ? firmware_map_remove+0x115/0x115 [ 324.367652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 324.367652] schedule+0x46/0xc0 [ 324.367652] schedule_timeout+0x476/0xd00 [ 324.367652] ? mark_held_locks+0x23/0xb0 [ 324.367652] ? usleep_range+0x120/0x120 [ 324.367652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 324.367652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 324.367652] ? trace_hardirqs_on+0x33/0x270 [ 324.367652] ? __next_timer_interrupt+0x190/0x190 [ 324.367652] ? prepare_to_swait_exclusive+0x110/0x110 [ 324.367652] rcu_gp_kthread+0x8e8/0x14b0 [ 324.367652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 324.367652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 324.367652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 324.367652] ? trace_hardirqs_on+0x33/0x270 [ 324.367652] ? __kthread_parkme+0xdb/0x100 [ 324.367652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 324.367652] kthread+0x202/0x230 [ 324.367652] ? kthread_unpark+0xf0/0xf0 [ 324.367652] ret_from_fork+0x3a/0x50 [ 351.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 351.859652] Modules linked in: [ 351.859652] irq event stamp: 19370404 [ 351.859652] hardirqs last enabled at (19370403): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 351.859652] hardirqs last disabled at (19370404): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 351.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 351.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 351.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 351.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 351.859652] RIP: 0010:trace_graph_entry+0x6e9/0x840 [ 351.859652] Code: 42 ff ff 48 c7 c7 10 10 37 83 e8 42 8a 26 00 48 83 3d 5a f4 f5 01 00 0f 84 fc 00 00 00 48 83 05 5c 8e 1d 04 01 4c 89 ff 57 9d <66> 66 90 66 90 48 83 05 6a 8e 1d 04 01 e9 4c f9 ff ff 4c 89 ff 48 [ 351.859652] RSP: 0018:ffff88800f11f908 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 351.859652] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81411bae [ 351.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 351.859652] RBP: ffff88800f11f988 R08: ffffed1014704706 R09: 0000000000000000 [ 351.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3823828 [ 351.859652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000202 [ 351.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 351.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 351.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 351.859652] Call Trace: [ 351.859652] trace_graph_entry_watchdog+0x23/0xc0 [ 351.859652] function_graph_enter+0x275/0x370 [ 351.859652] ? ftrace_graph_stop+0x10/0x10 [ 351.859652] ? trace_graph_return+0x2e1/0x410 [ 351.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 351.859652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 351.859652] ? trace_graph_return+0x2e1/0x410 [ 351.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 351.859652] ? __check_object_size+0x2b3/0x752 [ 351.859652] prepare_ftrace_return+0x7b/0xa0 [ 351.859652] ? 0xffffffff81000000 [ 351.859652] ftrace_graph_caller+0x62/0xa0 [ 351.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 351.859652] ? __check_object_size+0x299/0x752 [ 351.859652] ? __check_object_size+0x2a7/0x752 [ 351.859652] ? __phys_addr_symbol+0x5/0x60 [ 351.859652] ? return_to_handler+0x15/0x36 [ 351.859652] __phys_addr_symbol+0x5/0x60 [ 351.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 351.859652] __check_object_size+0x2b3/0x752 [ 351.859652] __probe_kernel_write+0xa0/0x120 [ 351.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 351.859652] ftrace_write+0x22/0x60 [ 351.859652] ftrace_replace_code+0x2fb/0x350 [ 351.859652] ? ftrace_int3_handler+0x70/0x70 [ 351.859652] ? wait_for_completion+0x260/0x260 [ 351.859652] ftrace_modify_all_code+0x141/0x2b0 [ 351.859652] arch_ftrace_update_code+0x22/0x40 [ 351.859652] ftrace_run_update_code+0x2b/0xd0 [ 351.859652] ftrace_startup_enable+0x3a/0x70 [ 351.859652] ftrace_startup+0x162/0x200 [ 351.859652] register_ftrace_graph+0x658/0x6b0 [ 351.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 351.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 351.859652] ? find_next_bit+0xba/0xd0 [ 351.859652] run_tracer_selftest+0x285/0x382 [ 351.859652] ? init_graph_tracefs+0x49/0x49 [ 351.859652] register_tracer+0x290/0x3f8 [ 351.859652] init_graph_trace+0xac/0xb4 [ 351.859652] do_one_initcall+0x101/0x64a [ 351.859652] ? perf_trace_initcall_level+0x280/0x280 [ 351.859652] ? __lock_is_held+0x38/0xd0 [ 351.859652] ? check_flags+0x250/0x250 [ 351.859652] kernel_init_freeable+0x4a6/0x58c [ 351.859652] ? rest_init+0x44d/0x44d [ 351.859652] kernel_init+0x11/0x1e3 [ 351.859652] ? rest_init+0x44d/0x44d [ 351.859652] ret_from_fork+0x3a/0x50 [ 379.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 379.859652] Modules linked in: [ 379.859652] irq event stamp: 19387896 [ 379.859652] hardirqs last enabled at (19387895): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 379.859652] hardirqs last disabled at (19387896): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 379.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 379.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 379.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 379.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 379.859652] RIP: 0010:function_graph_enter+0x1d0/0x370 [ 379.859652] Code: ea 48 89 d7 48 89 54 24 10 e8 0c de 25 00 48 8b 04 24 4c 89 e7 48 8b 54 24 10 48 83 05 90 39 1d 04 01 48 89 02 e8 50 dd 25 00 <48> 8b 93 38 25 00 00 48 83 05 81 39 1d 04 01 48 01 ea 48 8d 7a 08 [ 379.859652] RSP: 0018:ffff88800f11f948 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 379.859652] RAX: 0000000000000000 RBX: ffff88800f111000 RCX: ffffffff8141c8a0 [ 379.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: ffff88800f113538 [ 379.859652] RBP: 0000000000000000 R08: 0000000000000002 R09: ffffed1001e226a9 [ 379.859652] R10: ffffed1001e226a9 R11: ffff88800f11354f R12: ffff88800f113538 [ 379.859652] R13: 1ffff11001e23f2d R14: ffffffff8112c5f0 R15: ffff88800f11352c [ 379.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 379.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 379.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 379.859652] Call Trace: [ 379.859652] ? __check_object_size+0xc6/0x752 [ 379.859652] ? ftrace_graph_stop+0x10/0x10 [ 379.859652] ? trace_graph_return+0x2e1/0x410 [ 379.859652] ? __phys_addr_symbol+0x60/0x60 [ 379.859652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 379.859652] ? trace_graph_return+0x2e1/0x410 [ 379.859652] ? __phys_addr_symbol+0x60/0x60 [ 379.859652] ? __check_object_size+0xc6/0x752 [ 379.859652] prepare_ftrace_return+0x7b/0xa0 [ 379.859652] ftrace_graph_caller+0x62/0xa0 [ 379.859652] ? __phys_addr+0x120/0x120 [ 379.859652] ? __check_object_size+0xb0/0x752 [ 379.859652] ? __check_object_size+0xbe/0x752 [ 379.859652] ? __phys_addr+0x5/0x120 [ 379.859652] ? return_to_handler+0x15/0x36 [ 379.859652] __phys_addr+0x5/0x120 [ 379.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 379.859652] __check_object_size+0xc6/0x752 [ 379.859652] ? __probe_kernel_write+0x90/0x120 [ 379.859652] __probe_kernel_write+0xa0/0x120 [ 379.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 379.859652] ftrace_write+0x22/0x60 [ 379.859652] ftrace_replace_code+0x2fb/0x350 [ 379.859652] ? ftrace_int3_handler+0x70/0x70 [ 379.859652] ? wait_for_completion+0x260/0x260 [ 379.859652] ftrace_modify_all_code+0x141/0x2b0 [ 379.859652] arch_ftrace_update_code+0x22/0x40 [ 379.859652] ftrace_run_update_code+0x2b/0xd0 [ 379.859652] ftrace_startup_enable+0x3a/0x70 [ 379.859652] ftrace_startup+0x162/0x200 [ 379.859652] register_ftrace_graph+0x658/0x6b0 [ 379.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 379.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 379.859652] ? find_next_bit+0xba/0xd0 [ 379.859652] run_tracer_selftest+0x285/0x382 [ 379.859652] ? init_graph_tracefs+0x49/0x49 [ 379.859652] register_tracer+0x290/0x3f8 [ 379.859652] init_graph_trace+0xac/0xb4 [ 379.859652] do_one_initcall+0x101/0x64a [ 379.859652] ? perf_trace_initcall_level+0x280/0x280 [ 379.859652] ? __lock_is_held+0x38/0xd0 [ 379.859652] ? check_flags+0x250/0x250 [ 379.859652] kernel_init_freeable+0x4a6/0x58c [ 379.859652] ? rest_init+0x44d/0x44d [ 379.859652] kernel_init+0x11/0x1e3 [ 379.859652] ? rest_init+0x44d/0x44d [ 379.859652] ret_from_fork+0x3a/0x50 [ 402.387652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 402.387652] rcu: (detected by 0, t=26007 jiffies, g=-1115, q=2) [ 402.387652] rcu: All QSes seen, last rcu_sched kthread activity 26007 (4294987355-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 402.387652] swapper/0 R running task 28008 1 0 0x80000008 [ 402.387652] Call Trace: [ 402.387652] [ 402.387652] ? ftrace_graph_caller+0xa0/0xa0 [ 402.387652] sched_show_task+0x28f/0x310 [ 402.387652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 402.387652] ? ftrace_graph_caller+0xa0/0xa0 [ 402.387652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 402.387652] ? ftrace_graph_caller+0xa0/0xa0 [ 402.387652] update_process_times+0x2d/0x70 [ 402.387652] ? ftrace_graph_caller+0xa0/0xa0 [ 402.387652] tick_periodic+0x5c/0x110 [ 402.387652] tick_handle_periodic+0x30/0xd0 [ 402.387652] smp_apic_timer_interrupt+0xb7/0x360 [ 402.387652] apic_timer_interrupt+0xf/0x20 [ 402.387652] [ 402.387652] RIP: 0010:trace_graph_entry+0x6e9/0x840 [ 402.387652] Code: 42 ff ff 48 c7 c7 10 10 37 83 e8 42 8a 26 00 48 83 3d 5a f4 f5 01 00 0f 84 fc 00 00 00 48 83 05 5c 8e 1d 04 01 4c 89 ff 57 9d <66> 66 90 66 90 48 83 05 6a 8e 1d 04 01 e9 4c f9 ff ff 4c 89 ff 48 [ 402.387652] RSP: 0018:ffff88800f11f908 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 402.387652] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81411bae [ 402.387652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 402.387652] RBP: ffff88800f11f988 R08: ffffed1014704706 R09: 0000000000000000 [ 402.387652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3823828 [ 402.387652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000202 [ 402.387652] ? trace_graph_entry+0x6ce/0x840 [ 402.387652] trace_graph_entry_watchdog+0x23/0xc0 [ 402.387652] function_graph_enter+0x275/0x370 [ 402.387652] ? ftrace_graph_stop+0x10/0x10 [ 402.387652] ? pmd_set_huge.cold.11+0x73/0x73 [ 402.387652] ? retint_kernel+0x10/0x10 [ 402.387652] ? trace_hardirqs_on_caller+0x35/0x270 [ 402.387652] ? pmd_set_huge.cold.11+0x73/0x73 [ 402.387652] ? __check_object_size+0x274/0x752 [ 402.387652] prepare_ftrace_return+0x7b/0xa0 [ 402.387652] ? 0xffffffff81000000 [ 402.387652] ftrace_graph_caller+0x62/0xa0 [ 402.387652] ? __check_object_size+0x245/0x752 [ 402.387652] ? __check_object_size+0x268/0x752 [ 402.387652] ? 0xffffffff81000000 [ 402.387652] ? __phys_addr_symbol+0x5/0x60 [ 402.387652] __phys_addr_symbol+0x5/0x60 [ 402.387652] ? ftrace_graph_caller+0xa0/0xa0 [ 402.387652] __check_object_size+0x274/0x752 [ 402.387652] __probe_kernel_write+0xa0/0x120 [ 402.387652] ? ftrace_regs_caller_end+0x14/0x14 [ 402.387652] ftrace_write+0x22/0x60 [ 402.387652] ftrace_replace_code+0x2fb/0x350 [ 402.387652] ? ftrace_int3_handler+0x70/0x70 [ 402.387652] ? wait_for_completion+0x260/0x260 [ 402.387652] ftrace_modify_all_code+0x141/0x2b0 [ 402.387652] arch_ftrace_update_code+0x22/0x40 [ 402.387652] ftrace_run_update_code+0x2b/0xd0 [ 402.387652] ftrace_startup_enable+0x3a/0x70 [ 402.387652] ftrace_startup+0x162/0x200 [ 402.387652] register_ftrace_graph+0x658/0x6b0 [ 402.387652] trace_selftest_startup_function_graph+0xe4/0x238 [ 402.387652] ? trace_selftest_startup_function+0x91f/0x91f [ 402.387652] ? find_next_bit+0xba/0xd0 [ 402.387652] run_tracer_selftest+0x285/0x382 [ 402.387652] ? init_graph_tracefs+0x49/0x49 [ 402.387652] register_tracer+0x290/0x3f8 [ 402.387652] init_graph_trace+0xac/0xb4 [ 402.387652] do_one_initcall+0x101/0x64a [ 402.387652] ? perf_trace_initcall_level+0x280/0x280 [ 402.387652] ? __lock_is_held+0x38/0xd0 [ 402.387652] ? check_flags+0x250/0x250 [ 402.387652] kernel_init_freeable+0x4a6/0x58c [ 402.387652] ? rest_init+0x44d/0x44d [ 402.387652] kernel_init+0x11/0x1e3 [ 402.387652] ? rest_init+0x44d/0x44d [ 402.387652] ret_from_fork+0x3a/0x50 [ 402.387652] rcu: rcu_sched kthread starved for 26007 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 402.387652] rcu: RCU grace-period kthread stack dump: [ 402.387652] rcu_sched R running task 30600 10 2 0x80000000 [ 402.387652] Call Trace: [ 402.387652] ? __schedule+0x6af/0x1160 [ 402.387652] ? firmware_map_remove+0x115/0x115 [ 402.387652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 402.387652] schedule+0x46/0xc0 [ 402.387652] schedule_timeout+0x476/0xd00 [ 402.387652] ? mark_held_locks+0x23/0xb0 [ 402.387652] ? usleep_range+0x120/0x120 [ 402.387652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 402.387652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 402.387652] ? trace_hardirqs_on+0x33/0x270 [ 402.387652] ? __next_timer_interrupt+0x190/0x190 [ 402.387652] ? prepare_to_swait_exclusive+0x110/0x110 [ 402.387652] rcu_gp_kthread+0x8e8/0x14b0 [ 402.387652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 402.387652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 402.387652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 402.387652] ? trace_hardirqs_on+0x33/0x270 [ 402.387652] ? __kthread_parkme+0xdb/0x100 [ 402.387652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 402.387652] kthread+0x202/0x230 [ 402.387652] ? kthread_unpark+0xf0/0xf0 [ 402.387652] ret_from_fork+0x3a/0x50 [ 427.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 427.859652] Modules linked in: [ 427.859652] irq event stamp: 19415232 [ 427.859652] hardirqs last enabled at (19415231): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 427.859652] hardirqs last disabled at (19415232): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 427.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 427.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 427.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 427.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 427.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 427.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 427.859652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 427.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 427.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 427.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 427.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 427.859652] R13: ffff88800f11fa40 R14: 0000000000000202 R15: ffff8880a38b2588 [ 427.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 427.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 427.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 427.859652] Call Trace: [ 427.859652] ? __check_object_size+0xa4/0x752 [ 427.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 427.859652] ? function_graph_enter+0x370/0x370 [ 427.859652] ? __phys_addr+0x120/0x120 [ 427.859652] ? __check_object_size+0x8d/0x752 [ 427.859652] return_to_handler+0x15/0x36 [ 427.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 427.859652] ? __check_object_size+0xa4/0x752 [ 427.859652] ? __probe_kernel_write+0x90/0x120 [ 427.859652] ? __probe_kernel_write+0xa0/0x120 [ 427.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 427.859652] ? ftrace_write+0x22/0x60 [ 427.859652] ? ftrace_replace_code+0x2fb/0x350 [ 427.859652] ? ftrace_int3_handler+0x70/0x70 [ 427.859652] ? wait_for_completion+0x260/0x260 [ 427.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 427.859652] ? arch_ftrace_update_code+0x22/0x40 [ 427.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 427.859652] ? ftrace_startup_enable+0x3a/0x70 [ 427.859652] ? ftrace_startup+0x162/0x200 [ 427.859652] ? register_ftrace_graph+0x658/0x6b0 [ 427.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 427.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 427.859652] ? find_next_bit+0xba/0xd0 [ 427.859652] ? run_tracer_selftest+0x285/0x382 [ 427.859652] ? init_graph_tracefs+0x49/0x49 [ 427.859652] ? register_tracer+0x290/0x3f8 [ 427.859652] ? init_graph_trace+0xac/0xb4 [ 427.859652] ? do_one_initcall+0x101/0x64a [ 427.859652] ? perf_trace_initcall_level+0x280/0x280 [ 427.859652] ? __lock_is_held+0x38/0xd0 [ 427.859652] ? check_flags+0x250/0x250 [ 427.859652] ? kernel_init_freeable+0x4a6/0x58c [ 427.859652] ? rest_init+0x44d/0x44d [ 427.859652] ? kernel_init+0x11/0x1e3 [ 427.859652] ? rest_init+0x44d/0x44d [ 427.859652] ? ret_from_fork+0x3a/0x50 [ 455.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 455.859652] Modules linked in: [ 455.859652] irq event stamp: 19429348 [ 455.859652] hardirqs last enabled at (19429347): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 455.859652] hardirqs last disabled at (19429348): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 455.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 455.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 455.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 455.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 455.859652] RIP: 0010:__check_object_size+0x5/0x752 [ 455.859652] Code: ff 0f 0b 48 83 c4 18 e9 41 ff ff ff 49 c7 c5 20 d2 b8 82 4c 89 e8 4d 89 e8 e9 65 ff ff ff 0f 1f 80 00 00 00 00 cc 8b 39 f1 00 <41> 57 41 56 41 55 41 89 d5 41 54 55 48 89 f5 53 48 89 fb 48 83 ec [ 455.859652] RSP: 0018:ffff88800f11fb50 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 455.859652] RAX: 0000000000000005 RBX: ffff88800f111000 RCX: ffffffff8152cc50 [ 455.859652] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff8490b020 [ 455.859652] RBP: ffff88800f113698 R08: fffffbfff0921605 R09: fffffbfff0921604 [ 455.859652] R10: fffffbfff0921604 R11: 0000000000000000 R12: 0000000000000001 [ 455.859652] R13: ffff88800f11148c R14: ffffffff8490b020 R15: ffff88800f1135b8 [ 455.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 455.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 455.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 455.859652] Call Trace: [ 455.859652] __probe_kernel_write+0xa0/0x120 [ 455.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 455.859652] ftrace_write+0x22/0x60 [ 455.859652] ftrace_replace_code+0x2fb/0x350 [ 455.859652] ? ftrace_int3_handler+0x70/0x70 [ 455.859652] ? wait_for_completion+0x260/0x260 [ 455.859652] ftrace_modify_all_code+0x141/0x2b0 [ 455.859652] arch_ftrace_update_code+0x22/0x40 [ 455.859652] ftrace_run_update_code+0x2b/0xd0 [ 455.859652] ftrace_startup_enable+0x3a/0x70 [ 455.859652] ftrace_startup+0x162/0x200 [ 455.859652] register_ftrace_graph+0x658/0x6b0 [ 455.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 455.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 455.859652] ? find_next_bit+0xba/0xd0 [ 455.859652] run_tracer_selftest+0x285/0x382 [ 455.859652] ? init_graph_tracefs+0x49/0x49 [ 455.859652] register_tracer+0x290/0x3f8 [ 455.859652] init_graph_trace+0xac/0xb4 [ 455.859652] do_one_initcall+0x101/0x64a [ 455.859652] ? perf_trace_initcall_level+0x280/0x280 [ 455.859652] ? __lock_is_held+0x38/0xd0 [ 455.859652] ? check_flags+0x250/0x250 [ 455.859652] kernel_init_freeable+0x4a6/0x58c [ 455.859652] ? rest_init+0x44d/0x44d [ 455.859652] kernel_init+0x11/0x1e3 [ 455.859652] ? rest_init+0x44d/0x44d [ 455.859652] ret_from_fork+0x3a/0x50 [ 480.407652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 480.407652] rcu: (detected by 0, t=45512 jiffies, g=-1115, q=2) [ 480.407652] rcu: All QSes seen, last rcu_sched kthread activity 45512 (4295006860-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 480.407652] swapper/0 R running task 28008 1 0 0x80000008 [ 480.407652] Call Trace: [ 480.407652] [ 480.407652] ? ftrace_graph_caller+0xa0/0xa0 [ 480.407652] sched_show_task+0x28f/0x310 [ 480.407652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 480.407652] ? ftrace_graph_caller+0xa0/0xa0 [ 480.407652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 480.407652] ? ftrace_graph_caller+0xa0/0xa0 [ 480.407652] update_process_times+0x2d/0x70 [ 480.407652] ? ftrace_graph_caller+0xa0/0xa0 [ 480.407652] tick_periodic+0x5c/0x110 [ 480.407652] tick_handle_periodic+0x30/0xd0 [ 480.407652] smp_apic_timer_interrupt+0xb7/0x360 [ 480.407652] apic_timer_interrupt+0xf/0x20 [ 480.407652] [ 480.407652] RIP: 0010:trace_graph_entry+0x6e9/0x840 [ 480.407652] Code: 42 ff ff 48 c7 c7 10 10 37 83 e8 42 8a 26 00 48 83 3d 5a f4 f5 01 00 0f 84 fc 00 00 00 48 83 05 5c 8e 1d 04 01 4c 89 ff 57 9d <66> 66 90 66 90 48 83 05 6a 8e 1d 04 01 e9 4c f9 ff ff 4c 89 ff 48 [ 480.407652] RSP: 0018:ffff88800f11f908 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 480.407652] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81411bae [ 480.407652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 480.407652] RBP: ffff88800f11f988 R08: ffffed1014704706 R09: 0000000000000000 [ 480.407652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3823828 [ 480.407652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000202 [ 480.407652] ? trace_graph_entry+0x6ce/0x840 [ 480.407652] trace_graph_entry_watchdog+0x23/0xc0 [ 480.407652] function_graph_enter+0x275/0x370 [ 480.407652] ? ftrace_graph_stop+0x10/0x10 [ 480.407652] ? __phys_addr+0x120/0x120 [ 480.407652] ? __phys_addr+0x120/0x120 [ 480.407652] ? __check_object_size+0xa4/0x752 [ 480.407652] prepare_ftrace_return+0x7b/0xa0 [ 480.407652] ftrace_graph_caller+0x62/0xa0 [ 480.407652] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 480.407652] ? __check_object_size+0x8d/0x752 [ 480.407652] ? __check_object_size+0x9c/0x752 [ 480.407652] ? __virt_addr_valid+0x5/0x1df [ 480.407652] __virt_addr_valid+0x5/0x1df [ 480.407652] ? ftrace_graph_caller+0xa0/0xa0 [ 480.407652] __check_object_size+0xa4/0x752 [ 480.407652] ? __probe_kernel_write+0x90/0x120 [ 480.407652] __probe_kernel_write+0xa0/0x120 [ 480.407652] ? ftrace_regs_caller_end+0x14/0x14 [ 480.407652] ftrace_write+0x22/0x60 [ 480.407652] ftrace_replace_code+0x2fb/0x350 [ 480.407652] ? ftrace_int3_handler+0x70/0x70 [ 480.407652] ? wait_for_completion+0x260/0x260 [ 480.407652] ftrace_modify_all_code+0x141/0x2b0 [ 480.407652] arch_ftrace_update_code+0x22/0x40 [ 480.407652] ftrace_run_update_code+0x2b/0xd0 [ 480.407652] ftrace_startup_enable+0x3a/0x70 [ 480.407652] ftrace_startup+0x162/0x200 [ 480.407652] register_ftrace_graph+0x658/0x6b0 [ 480.407652] trace_selftest_startup_function_graph+0xe4/0x238 [ 480.407652] ? trace_selftest_startup_function+0x91f/0x91f [ 480.407652] ? find_next_bit+0xba/0xd0 [ 480.407652] run_tracer_selftest+0x285/0x382 [ 480.407652] ? init_graph_tracefs+0x49/0x49 [ 480.407652] register_tracer+0x290/0x3f8 [ 480.407652] init_graph_trace+0xac/0xb4 [ 480.407652] do_one_initcall+0x101/0x64a [ 480.407652] ? perf_trace_initcall_level+0x280/0x280 [ 480.407652] ? __lock_is_held+0x38/0xd0 [ 480.407652] ? check_flags+0x250/0x250 [ 480.407652] kernel_init_freeable+0x4a6/0x58c [ 480.407652] ? rest_init+0x44d/0x44d [ 480.407652] kernel_init+0x11/0x1e3 [ 480.407652] ? rest_init+0x44d/0x44d [ 480.407652] ret_from_fork+0x3a/0x50 [ 480.407652] rcu: rcu_sched kthread starved for 45512 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 480.407652] rcu: RCU grace-period kthread stack dump: [ 480.407652] rcu_sched R running task 30600 10 2 0x80000000 [ 480.407652] Call Trace: [ 480.407652] ? __schedule+0x6af/0x1160 [ 480.407652] ? firmware_map_remove+0x115/0x115 [ 480.407652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 480.407652] schedule+0x46/0xc0 [ 480.407652] schedule_timeout+0x476/0xd00 [ 480.407652] ? mark_held_locks+0x23/0xb0 [ 480.407652] ? usleep_range+0x120/0x120 [ 480.407652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 480.407652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 480.407652] ? trace_hardirqs_on+0x33/0x270 [ 480.407652] ? __next_timer_interrupt+0x190/0x190 [ 480.407652] ? prepare_to_swait_exclusive+0x110/0x110 [ 480.407652] rcu_gp_kthread+0x8e8/0x14b0 [ 480.407652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 480.407652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 480.407652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 480.407652] ? trace_hardirqs_on+0x33/0x270 [ 480.407652] ? __kthread_parkme+0xdb/0x100 [ 480.407652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 480.407652] kthread+0x202/0x230 [ 480.407652] ? kthread_unpark+0xf0/0xf0 [ 480.407652] ret_from_fork+0x3a/0x50 [ 507.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 507.859652] Modules linked in: [ 507.859652] irq event stamp: 19455562 [ 507.859652] hardirqs last enabled at (19455561): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 507.859652] hardirqs last disabled at (19455562): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 507.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 507.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 507.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 507.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 507.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 507.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 507.859652] RSP: 0018:ffff88800f11faa0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 507.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 507.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 507.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 507.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 507.859652] R13: ffff88800f11faf0 R14: 0000000000000202 R15: ffff8880a38b2588 [ 507.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 507.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 507.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 507.859652] Call Trace: [ 507.859652] ? ftrace_write+0x3d/0x60 [ 507.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 507.859652] ? function_graph_enter+0x370/0x370 [ 507.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 507.859652] ? ftrace_replace_code+0x2d0/0x350 [ 507.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 507.859652] return_to_handler+0x15/0x36 [ 507.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 507.859652] ? ftrace_write+0x3d/0x60 [ 507.859652] ? ftrace_replace_code+0x2fb/0x350 [ 507.859652] ? ftrace_int3_handler+0x70/0x70 [ 507.859652] ? wait_for_completion+0x260/0x260 [ 507.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 507.859652] ? arch_ftrace_update_code+0x22/0x40 [ 507.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 507.859652] ? ftrace_startup_enable+0x3a/0x70 [ 507.859652] ? ftrace_startup+0x162/0x200 [ 507.859652] ? register_ftrace_graph+0x658/0x6b0 [ 507.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 507.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 507.859652] ? find_next_bit+0xba/0xd0 [ 507.859652] ? run_tracer_selftest+0x285/0x382 [ 507.859652] ? init_graph_tracefs+0x49/0x49 [ 507.859652] ? register_tracer+0x290/0x3f8 [ 507.859652] ? init_graph_trace+0xac/0xb4 [ 507.859652] ? do_one_initcall+0x101/0x64a [ 507.859652] ? perf_trace_initcall_level+0x280/0x280 [ 507.859652] ? __lock_is_held+0x38/0xd0 [ 507.859652] ? check_flags+0x250/0x250 [ 507.859652] ? kernel_init_freeable+0x4a6/0x58c [ 507.859652] ? rest_init+0x44d/0x44d [ 507.859652] ? kernel_init+0x11/0x1e3 [ 507.859652] ? rest_init+0x44d/0x44d [ 507.859652] ? ret_from_fork+0x3a/0x50 [ 535.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 535.859652] Modules linked in: [ 535.859652] irq event stamp: 19469722 [ 535.859652] hardirqs last enabled at (19469721): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 535.859652] hardirqs last disabled at (19469722): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 535.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 535.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 535.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 535.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 535.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 535.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 535.859652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 535.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 535.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000206 [ 535.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 535.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 535.859652] R13: ffff88800f11fa40 R14: 0000000000000206 R15: ffff8880a38b2588 [ 535.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 535.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 535.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 535.859652] Call Trace: [ 535.859652] ? __check_object_size+0x274/0x752 [ 535.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 535.859652] ? function_graph_enter+0x370/0x370 [ 535.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 535.859652] ? __check_object_size+0x245/0x752 [ 535.859652] ? 0xffffffff81000000 [ 535.859652] return_to_handler+0x15/0x36 [ 535.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 535.859652] ? __check_object_size+0x274/0x752 [ 535.859652] ? __probe_kernel_write+0xa0/0x120 [ 535.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 535.859652] ? ftrace_write+0x22/0x60 [ 535.859652] ? ftrace_replace_code+0x2fb/0x350 [ 535.859652] ? ftrace_int3_handler+0x70/0x70 [ 535.859652] ? wait_for_completion+0x260/0x260 [ 535.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 535.859652] ? arch_ftrace_update_code+0x22/0x40 [ 535.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 535.859652] ? ftrace_startup_enable+0x3a/0x70 [ 535.859652] ? ftrace_startup+0x162/0x200 [ 535.859652] ? register_ftrace_graph+0x658/0x6b0 [ 535.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 535.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 535.859652] ? find_next_bit+0xba/0xd0 [ 535.859652] ? run_tracer_selftest+0x285/0x382 [ 535.859652] ? init_graph_tracefs+0x49/0x49 [ 535.859652] ? register_tracer+0x290/0x3f8 [ 535.859652] ? init_graph_trace+0xac/0xb4 [ 535.859652] ? do_one_initcall+0x101/0x64a [ 535.859652] ? perf_trace_initcall_level+0x280/0x280 [ 535.859652] ? __lock_is_held+0x38/0xd0 [ 535.859652] ? check_flags+0x250/0x250 [ 535.859652] ? kernel_init_freeable+0x4a6/0x58c [ 535.859652] ? rest_init+0x44d/0x44d [ 535.859652] ? kernel_init+0x11/0x1e3 [ 535.859652] ? rest_init+0x44d/0x44d [ 535.859652] ? ret_from_fork+0x3a/0x50 [ 558.427652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 558.427652] rcu: (detected by 0, t=65017 jiffies, g=-1115, q=2) [ 558.427652] rcu: All QSes seen, last rcu_sched kthread activity 65017 (4295026365-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 558.427652] swapper/0 R running task 28008 1 0 0x80000008 [ 558.427652] Call Trace: [ 558.427652] [ 558.427652] ? ftrace_graph_caller+0xa0/0xa0 [ 558.427652] sched_show_task+0x28f/0x310 [ 558.427652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 558.427652] ? ftrace_graph_caller+0xa0/0xa0 [ 558.427652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 558.427652] ? ftrace_graph_caller+0xa0/0xa0 [ 558.427652] update_process_times+0x2d/0x70 [ 558.427652] ? ftrace_graph_caller+0xa0/0xa0 [ 558.427652] tick_periodic+0x5c/0x110 [ 558.427652] tick_handle_periodic+0x30/0xd0 [ 558.427652] smp_apic_timer_interrupt+0xb7/0x360 [ 558.427652] apic_timer_interrupt+0xf/0x20 [ 558.427652] [ 558.427652] RIP: 0010:trace_graph_return+0x308/0x410 [ 558.427652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 558.427652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 558.427652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 558.427652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000206 [ 558.427652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 558.427652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 558.427652] R13: ffff88800f11fa40 R14: 0000000000000206 R15: ffff8880a38b2588 [ 558.427652] ? trace_graph_return+0x2ed/0x410 [ 558.427652] ? __check_object_size+0x2b3/0x752 [ 558.427652] ftrace_return_to_handler+0x1fb/0x2f0 [ 558.427652] ? function_graph_enter+0x370/0x370 [ 558.427652] ? pmd_set_huge.cold.11+0x73/0x73 [ 558.427652] ? __check_object_size+0x299/0x752 [ 558.427652] ? 0xffffffff81000000 [ 558.427652] return_to_handler+0x15/0x36 [ 558.427652] ? ftrace_graph_caller+0xa0/0xa0 [ 558.427652] ? __check_object_size+0x2b3/0x752 [ 558.427652] ? __probe_kernel_write+0xa0/0x120 [ 558.427652] ? ftrace_regs_caller_end+0x14/0x14 [ 558.427652] ? ftrace_write+0x22/0x60 [ 558.427652] ? ftrace_replace_code+0x2fb/0x350 [ 558.427652] ? ftrace_int3_handler+0x70/0x70 [ 558.427652] ? wait_for_completion+0x260/0x260 [ 558.427652] ? ftrace_modify_all_code+0x141/0x2b0 [ 558.427652] ? arch_ftrace_update_code+0x22/0x40 [ 558.427652] ? ftrace_run_update_code+0x2b/0xd0 [ 558.427652] ? ftrace_startup_enable+0x3a/0x70 [ 558.427652] ? ftrace_startup+0x162/0x200 [ 558.427652] ? register_ftrace_graph+0x658/0x6b0 [ 558.427652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 558.427652] ? trace_selftest_startup_function+0x91f/0x91f [ 558.427652] ? find_next_bit+0xba/0xd0 [ 558.427652] ? run_tracer_selftest+0x285/0x382 [ 558.427652] ? init_graph_tracefs+0x49/0x49 [ 558.427652] ? register_tracer+0x290/0x3f8 [ 558.427652] ? init_graph_trace+0xac/0xb4 [ 558.427652] ? do_one_initcall+0x101/0x64a [ 558.427652] ? perf_trace_initcall_level+0x280/0x280 [ 558.427652] ? __lock_is_held+0x38/0xd0 [ 558.427652] ? check_flags+0x250/0x250 [ 558.427652] ? kernel_init_freeable+0x4a6/0x58c [ 558.427652] ? rest_init+0x44d/0x44d [ 558.427652] ? kernel_init+0x11/0x1e3 [ 558.427652] ? rest_init+0x44d/0x44d [ 558.427652] ? ret_from_fork+0x3a/0x50 [ 558.427652] rcu: rcu_sched kthread starved for 65017 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 558.427652] rcu: RCU grace-period kthread stack dump: [ 558.427652] rcu_sched R running task 30600 10 2 0x80000000 [ 558.427652] Call Trace: [ 558.427652] ? __schedule+0x6af/0x1160 [ 558.427652] ? firmware_map_remove+0x115/0x115 [ 558.427652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 558.427652] schedule+0x46/0xc0 [ 558.427652] schedule_timeout+0x476/0xd00 [ 558.427652] ? mark_held_locks+0x23/0xb0 [ 558.427652] ? usleep_range+0x120/0x120 [ 558.427652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 558.427652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 558.427652] ? trace_hardirqs_on+0x33/0x270 [ 558.427652] ? __next_timer_interrupt+0x190/0x190 [ 558.427652] ? prepare_to_swait_exclusive+0x110/0x110 [ 558.427652] rcu_gp_kthread+0x8e8/0x14b0 [ 558.427652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 558.427652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 558.427652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 558.427652] ? trace_hardirqs_on+0x33/0x270 [ 558.427652] ? __kthread_parkme+0xdb/0x100 [ 558.427652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 558.427652] kthread+0x202/0x230 [ 558.427652] ? kthread_unpark+0xf0/0xf0 [ 558.427652] ret_from_fork+0x3a/0x50 [ 583.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 583.859652] Modules linked in: [ 583.859652] irq event stamp: 19493904 [ 583.859652] hardirqs last enabled at (19493903): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 583.859652] hardirqs last disabled at (19493904): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 583.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 583.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 583.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 583.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 583.859652] RIP: 0010:__asan_load8+0x3e/0xa0 [ 583.859652] Code: 39 f8 77 48 48 8d 47 07 48 89 c2 83 e2 07 48 83 fa 07 75 44 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 0f b6 04 10 84 c0 75 19 48 b8 00 00 00 00 00 80 ff ff eb c8 48 b8 00 00 00 00 00 00 00 [ 583.859652] RSP: 0018:ffff88800f11f940 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 583.859652] RAX: 0000000000000000 RBX: ffff88800f111000 RCX: ffffffff8141c8a0 [ 583.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: ffff88800f113538 [ 583.859652] RBP: 0000000000000000 R08: 0000000000000002 R09: ffffed1001e226a9 [ 583.859652] R10: ffffed1001e226a9 R11: ffff88800f11354f R12: ffff88800f113538 [ 583.859652] R13: 1ffff11001e23f2d R14: ffffffff8112c5f0 R15: ffff88800f11352c [ 583.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 583.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 583.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 583.859652] Call Trace: [ 583.859652] function_graph_enter+0x1d0/0x370 [ 583.859652] ? __check_object_size+0xc6/0x752 [ 583.859652] ? ftrace_graph_stop+0x10/0x10 [ 583.859652] ? __phys_addr_symbol+0x60/0x60 [ 583.859652] ? trace_graph_return+0x2ed/0x410 [ 583.859652] ? __phys_addr_symbol+0x60/0x60 [ 583.859652] ? __check_object_size+0xc6/0x752 [ 583.859652] prepare_ftrace_return+0x7b/0xa0 [ 583.859652] ftrace_graph_caller+0x62/0xa0 [ 583.859652] ? __phys_addr+0x120/0x120 [ 583.859652] ? __check_object_size+0xb0/0x752 [ 583.859652] ? __check_object_size+0xbe/0x752 [ 583.859652] ? __phys_addr+0x5/0x120 [ 583.859652] ? return_to_handler+0x15/0x36 [ 583.859652] __phys_addr+0x5/0x120 [ 583.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 583.859652] __check_object_size+0xc6/0x752 [ 583.859652] ? __probe_kernel_write+0x90/0x120 [ 583.859652] __probe_kernel_write+0xa0/0x120 [ 583.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 583.859652] ftrace_write+0x22/0x60 [ 583.859652] ftrace_replace_code+0x2fb/0x350 [ 583.859652] ? ftrace_int3_handler+0x70/0x70 [ 583.859652] ? wait_for_completion+0x260/0x260 [ 583.859652] ftrace_modify_all_code+0x141/0x2b0 [ 583.859652] arch_ftrace_update_code+0x22/0x40 [ 583.859652] ftrace_run_update_code+0x2b/0xd0 [ 583.859652] ftrace_startup_enable+0x3a/0x70 [ 583.859652] ftrace_startup+0x162/0x200 [ 583.859652] register_ftrace_graph+0x658/0x6b0 [ 583.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 583.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 583.859652] ? find_next_bit+0xba/0xd0 [ 583.859652] run_tracer_selftest+0x285/0x382 [ 583.859652] ? init_graph_tracefs+0x49/0x49 [ 583.859652] register_tracer+0x290/0x3f8 [ 583.859652] init_graph_trace+0xac/0xb4 [ 583.859652] do_one_initcall+0x101/0x64a [ 583.859652] ? perf_trace_initcall_level+0x280/0x280 [ 583.859652] ? __lock_is_held+0x38/0xd0 [ 583.859652] ? check_flags+0x250/0x250 [ 583.859652] kernel_init_freeable+0x4a6/0x58c [ 583.859652] ? rest_init+0x44d/0x44d [ 583.859652] kernel_init+0x11/0x1e3 [ 583.859652] ? rest_init+0x44d/0x44d [ 583.859652] ret_from_fork+0x3a/0x50 [ 611.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 611.859652] Modules linked in: [ 611.859652] irq event stamp: 19508020 [ 611.859652] hardirqs last enabled at (19508019): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 611.859652] hardirqs last disabled at (19508020): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 611.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 611.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 611.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 611.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 611.859652] RIP: 0010:__check_object_size+0x5/0x752 [ 611.859652] Code: ff 0f 0b 48 83 c4 18 e9 41 ff ff ff 49 c7 c5 20 d2 b8 82 4c 89 e8 4d 89 e8 e9 65 ff ff ff 0f 1f 80 00 00 00 00 cc 8b 39 f1 00 <41> 57 41 56 41 55 41 89 d5 41 54 55 48 89 f5 53 48 89 fb 48 83 ec [ 611.859652] RSP: 0018:ffff88800f11fb50 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 611.859652] RAX: 0000000000000005 RBX: ffff88800f111000 RCX: ffffffff8152cc50 [ 611.859652] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff8490b020 [ 611.859652] RBP: ffff88800f113698 R08: fffffbfff0921605 R09: fffffbfff0921604 [ 611.859652] R10: fffffbfff0921604 R11: 0000000000000000 R12: 0000000000000001 [ 611.859652] R13: ffff88800f11148c R14: ffffffff8490b020 R15: ffff88800f1135b8 [ 611.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 611.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 611.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 611.859652] Call Trace: [ 611.859652] __probe_kernel_write+0xa0/0x120 [ 611.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 611.859652] ftrace_write+0x22/0x60 [ 611.859652] ftrace_replace_code+0x2fb/0x350 [ 611.859652] ? ftrace_int3_handler+0x70/0x70 [ 611.859652] ? wait_for_completion+0x260/0x260 [ 611.859652] ftrace_modify_all_code+0x141/0x2b0 [ 611.859652] arch_ftrace_update_code+0x22/0x40 [ 611.859652] ftrace_run_update_code+0x2b/0xd0 [ 611.859652] ftrace_startup_enable+0x3a/0x70 [ 611.859652] ftrace_startup+0x162/0x200 [ 611.859652] register_ftrace_graph+0x658/0x6b0 [ 611.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 611.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 611.859652] ? find_next_bit+0xba/0xd0 [ 611.859652] run_tracer_selftest+0x285/0x382 [ 611.859652] ? init_graph_tracefs+0x49/0x49 [ 611.859652] register_tracer+0x290/0x3f8 [ 611.859652] init_graph_trace+0xac/0xb4 [ 611.859652] do_one_initcall+0x101/0x64a [ 611.859652] ? perf_trace_initcall_level+0x280/0x280 [ 611.859652] ? __lock_is_held+0x38/0xd0 [ 611.859652] ? check_flags+0x250/0x250 [ 611.859652] kernel_init_freeable+0x4a6/0x58c [ 611.859652] ? rest_init+0x44d/0x44d [ 611.859652] kernel_init+0x11/0x1e3 [ 611.859652] ? rest_init+0x44d/0x44d [ 611.859652] ret_from_fork+0x3a/0x50 [ 636.447652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 636.447652] rcu: (detected by 0, t=84522 jiffies, g=-1115, q=2) [ 636.447652] rcu: All QSes seen, last rcu_sched kthread activity 84522 (4295045870-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 636.447652] swapper/0 R running task 28008 1 0 0x80000008 [ 636.447652] Call Trace: [ 636.447652] [ 636.447652] ? ftrace_graph_caller+0xa0/0xa0 [ 636.447652] sched_show_task+0x28f/0x310 [ 636.447652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 636.447652] ? ftrace_graph_caller+0xa0/0xa0 [ 636.447652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 636.447652] ? ftrace_graph_caller+0xa0/0xa0 [ 636.447652] update_process_times+0x2d/0x70 [ 636.447652] ? ftrace_graph_caller+0xa0/0xa0 [ 636.447652] tick_periodic+0x5c/0x110 [ 636.447652] tick_handle_periodic+0x30/0xd0 [ 636.447652] smp_apic_timer_interrupt+0xb7/0x360 [ 636.447652] apic_timer_interrupt+0xf/0x20 [ 636.447652] [ 636.447652] RIP: 0010:trace_graph_entry+0x6e9/0x840 [ 636.447652] Code: 42 ff ff 48 c7 c7 10 10 37 83 e8 42 8a 26 00 48 83 3d 5a f4 f5 01 00 0f 84 fc 00 00 00 48 83 05 5c 8e 1d 04 01 4c 89 ff 57 9d <66> 66 90 66 90 48 83 05 6a 8e 1d 04 01 e9 4c f9 ff ff 4c 89 ff 48 [ 636.447652] RSP: 0018:ffff88800f11f9b8 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff13 [ 636.447652] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81411bae [ 636.447652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000216 [ 636.447652] RBP: ffff88800f11fa38 R08: ffffed1014704706 R09: 0000000000000000 [ 636.447652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3823828 [ 636.447652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000216 [ 636.447652] ? trace_graph_entry+0x6ce/0x840 [ 636.447652] trace_graph_entry_watchdog+0x23/0xc0 [ 636.447652] function_graph_enter+0x275/0x370 [ 636.447652] ? ftrace_graph_stop+0x10/0x10 [ 636.447652] ? function_graph_enter+0x370/0x370 [ 636.447652] ? pmd_set_huge.cold.11+0x73/0x73 [ 636.447652] ? pmd_set_huge.cold.11+0x73/0x73 [ 636.447652] ? ftrace_write+0x3d/0x60 [ 636.447652] prepare_ftrace_return+0x7b/0xa0 [ 636.447652] ? ftrace_regs_caller_end+0x14/0x14 [ 636.447652] ftrace_graph_caller+0x62/0xa0 [ 636.447652] ? __check_object_size+0x2d4/0x752 [ 636.447652] ? ftrace_replace_code+0x2d0/0x350 [ 636.447652] ? jiffies_read+0x20/0x20 [ 636.447652] ? __phys_addr_symbol+0x5/0x60 [ 636.447652] ? jiffies_read+0x20/0x20 [ 636.447652] ? ftrace_get_addr_new+0x151/0x270 [ 636.447652] __phys_addr_symbol+0x5/0x60 [ 636.447652] ? ftrace_graph_caller+0xa0/0xa0 [ 636.447652] ftrace_write+0x3d/0x60 [ 636.447652] ftrace_replace_code+0x2fb/0x350 [ 636.447652] ? ftrace_int3_handler+0x70/0x70 [ 636.447652] ? wait_for_completion+0x260/0x260 [ 636.447652] ftrace_modify_all_code+0x141/0x2b0 [ 636.447652] arch_ftrace_update_code+0x22/0x40 [ 636.447652] ftrace_run_update_code+0x2b/0xd0 [ 636.447652] ftrace_startup_enable+0x3a/0x70 [ 636.447652] ftrace_startup+0x162/0x200 [ 636.447652] register_ftrace_graph+0x658/0x6b0 [ 636.447652] trace_selftest_startup_function_graph+0xe4/0x238 [ 636.447652] ? trace_selftest_startup_function+0x91f/0x91f [ 636.447652] ? find_next_bit+0xba/0xd0 [ 636.447652] run_tracer_selftest+0x285/0x382 [ 636.447652] ? init_graph_tracefs+0x49/0x49 [ 636.447652] register_tracer+0x290/0x3f8 [ 636.447652] init_graph_trace+0xac/0xb4 [ 636.447652] do_one_initcall+0x101/0x64a [ 636.447652] ? perf_trace_initcall_level+0x280/0x280 [ 636.447652] ? __lock_is_held+0x38/0xd0 [ 636.447652] ? check_flags+0x250/0x250 [ 636.447652] kernel_init_freeable+0x4a6/0x58c [ 636.447652] ? rest_init+0x44d/0x44d [ 636.447652] kernel_init+0x11/0x1e3 [ 636.447652] ? rest_init+0x44d/0x44d [ 636.447652] ret_from_fork+0x3a/0x50 [ 636.447652] rcu: rcu_sched kthread starved for 84522 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 636.447652] rcu: RCU grace-period kthread stack dump: [ 636.447652] rcu_sched R running task 30600 10 2 0x80000000 [ 636.447652] Call Trace: [ 636.447652] ? __schedule+0x6af/0x1160 [ 636.447652] ? firmware_map_remove+0x115/0x115 [ 636.447652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 636.447652] schedule+0x46/0xc0 [ 636.447652] schedule_timeout+0x476/0xd00 [ 636.447652] ? mark_held_locks+0x23/0xb0 [ 636.447652] ? usleep_range+0x120/0x120 [ 636.447652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 636.447652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 636.447652] ? trace_hardirqs_on+0x33/0x270 [ 636.447652] ? __next_timer_interrupt+0x190/0x190 [ 636.447652] ? prepare_to_swait_exclusive+0x110/0x110 [ 636.447652] rcu_gp_kthread+0x8e8/0x14b0 [ 636.447652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 636.447652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 636.447652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 636.447652] ? trace_hardirqs_on+0x33/0x270 [ 636.447652] ? __kthread_parkme+0xdb/0x100 [ 636.447652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 636.447652] kthread+0x202/0x230 [ 636.447652] ? kthread_unpark+0xf0/0xf0 [ 636.447652] ret_from_fork+0x3a/0x50 [ 663.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 663.859652] Modules linked in: [ 663.859652] irq event stamp: 19534068 [ 663.859652] hardirqs last enabled at (19534067): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 663.859652] hardirqs last disabled at (19534068): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 663.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 663.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 663.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 663.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 663.859652] RIP: 0010:__check_object_size+0x21/0x752 [ 663.859652] Code: ff ff 0f 1f 80 00 00 00 00 cc 8b 39 f1 00 41 57 41 56 41 55 41 89 d5 41 54 55 48 89 f5 53 48 89 fb 48 83 ec 30 e8 bf 67 c9 ff <66> 66 66 66 90 e8 b5 67 c9 ff 31 ff 48 89 ee e8 3b 69 c9 ff 48 85 [ 663.859652] RSP: 0018:ffff88800f11faf0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 663.859652] RAX: ffff88800f111000 RBX: ffffffff8490b020 RCX: ffffffff8152cc50 [ 663.859652] RDX: 0000000000000000 RSI: ffffffff816ee151 RDI: ffffffff8490b020 [ 663.859652] RBP: 0000000000000001 R08: fffffbfff0921605 R09: fffffbfff0921604 [ 663.859652] R10: fffffbfff0921604 R11: 0000000000000000 R12: 0000000000000001 [ 663.859652] R13: 0000000000000001 R14: ffffffff8490b020 R15: ffff88800f1135b8 [ 663.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 663.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 663.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 663.859652] Call Trace: [ 663.859652] ? __probe_kernel_write+0x90/0x120 [ 663.859652] __probe_kernel_write+0xa0/0x120 [ 663.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 663.859652] ftrace_write+0x22/0x60 [ 663.859652] ftrace_replace_code+0x2fb/0x350 [ 663.859652] ? ftrace_int3_handler+0x70/0x70 [ 663.859652] ? wait_for_completion+0x260/0x260 [ 663.859652] ftrace_modify_all_code+0x141/0x2b0 [ 663.859652] arch_ftrace_update_code+0x22/0x40 [ 663.859652] ftrace_run_update_code+0x2b/0xd0 [ 663.859652] ftrace_startup_enable+0x3a/0x70 [ 663.859652] ftrace_startup+0x162/0x200 [ 663.859652] register_ftrace_graph+0x658/0x6b0 [ 663.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 663.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 663.859652] ? find_next_bit+0xba/0xd0 [ 663.859652] run_tracer_selftest+0x285/0x382 [ 663.859652] ? init_graph_tracefs+0x49/0x49 [ 663.859652] register_tracer+0x290/0x3f8 [ 663.859652] init_graph_trace+0xac/0xb4 [ 663.859652] do_one_initcall+0x101/0x64a [ 663.859652] ? perf_trace_initcall_level+0x280/0x280 [ 663.859652] ? __lock_is_held+0x38/0xd0 [ 663.859652] ? check_flags+0x250/0x250 [ 663.859652] kernel_init_freeable+0x4a6/0x58c [ 663.859652] ? rest_init+0x44d/0x44d [ 663.859652] kernel_init+0x11/0x1e3 [ 663.859652] ? rest_init+0x44d/0x44d [ 663.859652] ret_from_fork+0x3a/0x50 [ 691.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 691.859652] Modules linked in: [ 691.859652] irq event stamp: 19548086 [ 691.859652] hardirqs last enabled at (19548085): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 691.859652] hardirqs last disabled at (19548086): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 691.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 691.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 691.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 691.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 691.859652] RIP: 0010:ftrace_replace_code+0x29d/0x350 [ 691.859652] Code: f6 ff ff 41 89 c5 45 85 ed 0f 85 ef 06 00 00 4c 89 ff 83 c5 01 e8 53 c3 2c 00 49 89 c7 48 85 c0 74 6e 4c 89 ff e8 13 c5 2c 00 <44> 89 e6 48 89 c3 48 89 c7 e8 35 ac 2c 00 48 89 df 41 89 c5 e8 6a [ 691.859652] RSP: 0018:ffff88800f11fbc0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 691.859652] RAX: ffff88800fd15940 RBX: ffff88800fd15930 RCX: ffffffff813bdec3 [ 691.859652] RDX: 0000000000000003 RSI: dffffc0000000000 RDI: ffffffff855c3cc8 [ 691.859652] RBP: 0000000000001594 R08: ffff88800f111000 R09: 0000000000000000 [ 691.859652] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 691.859652] R13: 0000000000000000 R14: ffffffff82601ac0 R15: ffffffff855c3cc0 [ 691.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 691.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 691.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 691.859652] Call Trace: [ 691.859652] ? ftrace_int3_handler+0x70/0x70 [ 691.859652] ? wait_for_completion+0x260/0x260 [ 691.859652] ftrace_modify_all_code+0x141/0x2b0 [ 691.859652] arch_ftrace_update_code+0x22/0x40 [ 691.859652] ftrace_run_update_code+0x2b/0xd0 [ 691.859652] ftrace_startup_enable+0x3a/0x70 [ 691.859652] ftrace_startup+0x162/0x200 [ 691.859652] register_ftrace_graph+0x658/0x6b0 [ 691.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 691.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 691.859652] ? find_next_bit+0xba/0xd0 [ 691.859652] run_tracer_selftest+0x285/0x382 [ 691.859652] ? init_graph_tracefs+0x49/0x49 [ 691.859652] register_tracer+0x290/0x3f8 [ 691.859652] init_graph_trace+0xac/0xb4 [ 691.859652] do_one_initcall+0x101/0x64a [ 691.859652] ? perf_trace_initcall_level+0x280/0x280 [ 691.859652] ? __lock_is_held+0x38/0xd0 [ 691.859652] ? check_flags+0x250/0x250 [ 691.859652] kernel_init_freeable+0x4a6/0x58c [ 691.859652] ? rest_init+0x44d/0x44d [ 691.859652] kernel_init+0x11/0x1e3 [ 691.859652] ? rest_init+0x44d/0x44d [ 691.859652] ret_from_fork+0x3a/0x50 [ 714.467652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 714.467652] rcu: (detected by 0, t=104027 jiffies, g=-1115, q=2) [ 714.467652] rcu: All QSes seen, last rcu_sched kthread activity 104027 (4295065375-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 714.467652] swapper/0 R running task 28008 1 0 0x80000008 [ 714.467652] Call Trace: [ 714.467652] [ 714.467652] ? ftrace_graph_caller+0xa0/0xa0 [ 714.467652] sched_show_task+0x28f/0x310 [ 714.467652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 714.467652] ? ftrace_graph_caller+0xa0/0xa0 [ 714.467652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 714.467652] ? ftrace_graph_caller+0xa0/0xa0 [ 714.467652] update_process_times+0x2d/0x70 [ 714.467652] ? ftrace_graph_caller+0xa0/0xa0 [ 714.467652] tick_periodic+0x5c/0x110 [ 714.467652] tick_handle_periodic+0x30/0xd0 [ 714.467652] smp_apic_timer_interrupt+0xb7/0x360 [ 714.467652] apic_timer_interrupt+0xf/0x20 [ 714.467652] [ 714.467652] RIP: 0010:__x86_indirect_thunk_rax+0x0/0x20 [ 714.467652] Code: d1 89 ca e9 62 8b c0 ff 48 8d 0c c8 e9 14 87 c0 ff bb f2 ff ff ff 45 30 ed e9 de 8a c0 ff bb f2 ff ff ff e9 f0 8a c0 ff 90 90 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 04 24 c3 66 66 2e 0f 1f [ 714.467652] RSP: 0018:ffff88800f11f940 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 714.467652] RAX: ffffffff813f6190 RBX: ffff88800f111000 RCX: ffffffff8141c91b [ 714.467652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: ffff88800f11f988 [ 714.467652] RBP: ffff8880a38b2588 R08: 0000000000000002 R09: ffffed1001e226a9 [ 714.467652] R10: ffffed1001e226a9 R11: ffff88800f11354f R12: ffff88800f113538 [ 714.467652] R13: 1ffff11001e23f2d R14: ffff8880a38b2588 R15: ffff88800f11352c [ 714.467652] ? trace_panic_handler+0x40/0x40 [ 714.467652] ? function_graph_enter+0x24b/0x370 [ 714.467652] function_graph_enter+0x275/0x370 [ 714.467652] ? ftrace_graph_stop+0x10/0x10 [ 714.467652] ? __phys_addr+0x120/0x120 [ 714.467652] ? __phys_addr+0x120/0x120 [ 714.467652] ? __check_object_size+0xa4/0x752 [ 714.467652] prepare_ftrace_return+0x7b/0xa0 [ 714.467652] ftrace_graph_caller+0x62/0xa0 [ 714.467652] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 714.467652] ? __check_object_size+0x8d/0x752 [ 714.467652] ? __check_object_size+0x9c/0x752 [ 714.467652] ? __virt_addr_valid+0x5/0x1df [ 714.467652] __virt_addr_valid+0x5/0x1df [ 714.467652] ? ftrace_graph_caller+0xa0/0xa0 [ 714.467652] __check_object_size+0xa4/0x752 [ 714.467652] ? __probe_kernel_write+0x90/0x120 [ 714.467652] __probe_kernel_write+0xa0/0x120 [ 714.467652] ? ftrace_regs_caller_end+0x14/0x14 [ 714.467652] ftrace_write+0x22/0x60 [ 714.467652] ftrace_replace_code+0x2fb/0x350 [ 714.467652] ? ftrace_int3_handler+0x70/0x70 [ 714.467652] ? wait_for_completion+0x260/0x260 [ 714.467652] ftrace_modify_all_code+0x141/0x2b0 [ 714.467652] arch_ftrace_update_code+0x22/0x40 [ 714.467652] ftrace_run_update_code+0x2b/0xd0 [ 714.467652] ftrace_startup_enable+0x3a/0x70 [ 714.467652] ftrace_startup+0x162/0x200 [ 714.467652] register_ftrace_graph+0x658/0x6b0 [ 714.467652] trace_selftest_startup_function_graph+0xe4/0x238 [ 714.467652] ? trace_selftest_startup_function+0x91f/0x91f [ 714.467652] ? find_next_bit+0xba/0xd0 [ 714.467652] run_tracer_selftest+0x285/0x382 [ 714.467652] ? init_graph_tracefs+0x49/0x49 [ 714.467652] register_tracer+0x290/0x3f8 [ 714.467652] init_graph_trace+0xac/0xb4 [ 714.467652] do_one_initcall+0x101/0x64a [ 714.467652] ? perf_trace_initcall_level+0x280/0x280 [ 714.467652] ? __lock_is_held+0x38/0xd0 [ 714.467652] ? check_flags+0x250/0x250 [ 714.467652] kernel_init_freeable+0x4a6/0x58c [ 714.467652] ? rest_init+0x44d/0x44d [ 714.467652] kernel_init+0x11/0x1e3 [ 714.467652] ? rest_init+0x44d/0x44d [ 714.467652] ret_from_fork+0x3a/0x50 [ 714.467652] rcu: rcu_sched kthread starved for 104027 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 714.467652] rcu: RCU grace-period kthread stack dump: [ 714.467652] rcu_sched R running task 30600 10 2 0x80000000 [ 714.467652] Call Trace: [ 714.467652] ? __schedule+0x6af/0x1160 [ 714.467652] ? firmware_map_remove+0x115/0x115 [ 714.467652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 714.467652] schedule+0x46/0xc0 [ 714.467652] schedule_timeout+0x476/0xd00 [ 714.467652] ? mark_held_locks+0x23/0xb0 [ 714.467652] ? usleep_range+0x120/0x120 [ 714.467652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 714.467652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 714.467652] ? trace_hardirqs_on+0x33/0x270 [ 714.467652] ? __next_timer_interrupt+0x190/0x190 [ 714.467652] ? prepare_to_swait_exclusive+0x110/0x110 [ 714.467652] rcu_gp_kthread+0x8e8/0x14b0 [ 714.467652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 714.467652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 714.467652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 714.467652] ? trace_hardirqs_on+0x33/0x270 [ 714.467652] ? __kthread_parkme+0xdb/0x100 [ 714.467652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 714.467652] kthread+0x202/0x230 [ 714.467652] ? kthread_unpark+0xf0/0xf0 [ 714.467652] ret_from_fork+0x3a/0x50 [ 739.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 739.859652] Modules linked in: [ 739.859652] irq event stamp: 19572148 [ 739.859652] hardirqs last enabled at (19572147): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 739.859652] hardirqs last disabled at (19572148): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 739.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 739.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 739.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 739.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 739.859652] RIP: 0010:__check_object_size+0x192/0x752 [ 739.859652] Code: 48 c7 c7 ff ff ff ff 4c 89 fe e8 f9 67 c9 ff 49 83 ff ff 0f 84 de 04 00 00 e8 5a 66 c9 ff 48 8b 3c 24 4d 89 e7 e8 2e c3 f8 ff <49> 8b 44 24 08 31 ff 48 89 44 24 10 83 e0 01 48 89 c6 48 89 04 24 [ 739.859652] RSP: 0018:ffff88800f11faf0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 739.859652] RAX: 0000000000000000 RBX: ffffffff8490b020 RCX: ffffffff816ee2c2 [ 739.859652] RDX: dffffc0000000000 RSI: ffffffff816ee2b6 RDI: ffffea00001242c8 [ 739.859652] RBP: 0000000000000001 R08: ffff88800f111000 R09: 0000000000000000 [ 739.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffea00001242c0 [ 739.859652] R13: 0000000000000001 R14: ffffffff8490b021 R15: ffffea00001242c0 [ 739.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 739.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 739.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 739.859652] Call Trace: [ 739.859652] __probe_kernel_write+0xa0/0x120 [ 739.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 739.859652] ftrace_write+0x22/0x60 [ 739.859652] ftrace_replace_code+0x2fb/0x350 [ 739.859652] ? ftrace_int3_handler+0x70/0x70 [ 739.859652] ? wait_for_completion+0x260/0x260 [ 739.859652] ftrace_modify_all_code+0x141/0x2b0 [ 739.859652] arch_ftrace_update_code+0x22/0x40 [ 739.859652] ftrace_run_update_code+0x2b/0xd0 [ 739.859652] ftrace_startup_enable+0x3a/0x70 [ 739.859652] ftrace_startup+0x162/0x200 [ 739.859652] register_ftrace_graph+0x658/0x6b0 [ 739.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 739.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 739.859652] ? find_next_bit+0xba/0xd0 [ 739.859652] run_tracer_selftest+0x285/0x382 [ 739.859652] ? init_graph_tracefs+0x49/0x49 [ 739.859652] register_tracer+0x290/0x3f8 [ 739.859652] init_graph_trace+0xac/0xb4 [ 739.859652] do_one_initcall+0x101/0x64a [ 739.859652] ? perf_trace_initcall_level+0x280/0x280 [ 739.859652] ? __lock_is_held+0x38/0xd0 [ 739.859652] ? check_flags+0x250/0x250 [ 739.859652] kernel_init_freeable+0x4a6/0x58c [ 739.859652] ? rest_init+0x44d/0x44d [ 739.859652] kernel_init+0x11/0x1e3 [ 739.859652] ? rest_init+0x44d/0x44d [ 739.859652] ret_from_fork+0x3a/0x50 [ 767.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 767.859652] Modules linked in: [ 767.859652] irq event stamp: 19586150 [ 767.859652] hardirqs last enabled at (19586149): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 767.859652] hardirqs last disabled at (19586150): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 767.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 767.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 767.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 767.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 767.859652] RIP: 0010:ftrace_lookup_ip+0x1bd/0x230 [ 767.859652] Code: 01 48 83 05 24 fc 1f 04 01 e8 4f 00 2c 00 f6 43 18 01 0f 85 90 fe ff ff 48 83 05 15 fc 1f 04 01 eb 08 48 83 05 e3 fb 1f 04 01 <31> db 48 83 05 09 fc 1f 04 01 48 83 c4 08 48 89 d8 5b 5d 41 5c c3 [ 767.859652] RSP: 0018:ffff88800f11f8e0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 767.859652] RAX: 0000000000000000 RBX: ffffffff82b0a7a0 RCX: ffffffff813ba5a1 [ 767.859652] RDX: dffffc0000000000 RSI: ffffffff8112c590 RDI: ffffffff82b0a7b8 [ 767.859652] RBP: ffffffff8112c590 R08: ffffed1001e23f32 R09: ffffed1001e23f31 [ 767.859652] R10: ffffed1001e23f31 R11: ffff88800f11f98f R12: ffffffff8112c590 [ 767.859652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: ffff88800f11352c [ 767.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 767.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 767.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 767.859652] Call Trace: [ 767.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 767.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 767.859652] trace_graph_entry+0x24c/0x840 [ 767.859652] trace_graph_entry_watchdog+0x23/0xc0 [ 767.859652] function_graph_enter+0x275/0x370 [ 767.859652] ? ftrace_graph_stop+0x10/0x10 [ 767.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 767.859652] ? retint_kernel+0x10/0x10 [ 767.859652] ? trace_hardirqs_on_caller+0x35/0x270 [ 767.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 767.859652] ? __check_object_size+0x274/0x752 [ 767.859652] prepare_ftrace_return+0x7b/0xa0 [ 767.859652] ? 0xffffffff81000000 [ 767.859652] ftrace_graph_caller+0x62/0xa0 [ 767.859652] ? __check_object_size+0x245/0x752 [ 767.859652] ? __check_object_size+0x268/0x752 [ 767.859652] ? 0xffffffff81000000 [ 767.859652] ? __phys_addr_symbol+0x5/0x60 [ 767.859652] __phys_addr_symbol+0x5/0x60 [ 767.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 767.859652] __check_object_size+0x274/0x752 [ 767.859652] __probe_kernel_write+0xa0/0x120 [ 767.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 767.859652] ftrace_write+0x22/0x60 [ 767.859652] ftrace_replace_code+0x2fb/0x350 [ 767.859652] ? ftrace_int3_handler+0x70/0x70 [ 767.859652] ? wait_for_completion+0x260/0x260 [ 767.859652] ftrace_modify_all_code+0x141/0x2b0 [ 767.859652] arch_ftrace_update_code+0x22/0x40 [ 767.859652] ftrace_run_update_code+0x2b/0xd0 [ 767.859652] ftrace_startup_enable+0x3a/0x70 [ 767.859652] ftrace_startup+0x162/0x200 [ 767.859652] register_ftrace_graph+0x658/0x6b0 [ 767.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 767.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 767.859652] ? find_next_bit+0xba/0xd0 [ 767.859652] run_tracer_selftest+0x285/0x382 [ 767.859652] ? init_graph_tracefs+0x49/0x49 [ 767.859652] register_tracer+0x290/0x3f8 [ 767.859652] init_graph_trace+0xac/0xb4 [ 767.859652] do_one_initcall+0x101/0x64a [ 767.859652] ? perf_trace_initcall_level+0x280/0x280 [ 767.859652] ? __lock_is_held+0x38/0xd0 [ 767.859652] ? check_flags+0x250/0x250 [ 767.859652] kernel_init_freeable+0x4a6/0x58c [ 767.859652] ? rest_init+0x44d/0x44d [ 767.859652] kernel_init+0x11/0x1e3 [ 767.859652] ? rest_init+0x44d/0x44d [ 767.859652] ret_from_fork+0x3a/0x50 [ 792.487652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 792.487652] rcu: (detected by 0, t=123532 jiffies, g=-1115, q=2) [ 792.487652] rcu: All QSes seen, last rcu_sched kthread activity 123532 (4295084880-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 792.487652] swapper/0 R running task 28008 1 0 0x80000008 [ 792.487652] Call Trace: [ 792.487652] [ 792.487652] ? ftrace_graph_caller+0xa0/0xa0 [ 792.487652] sched_show_task+0x28f/0x310 [ 792.487652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 792.487652] ? ftrace_graph_caller+0xa0/0xa0 [ 792.487652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 792.487652] ? ftrace_graph_caller+0xa0/0xa0 [ 792.487652] update_process_times+0x2d/0x70 [ 792.487652] ? ftrace_graph_caller+0xa0/0xa0 [ 792.487652] tick_periodic+0x5c/0x110 [ 792.487652] tick_handle_periodic+0x30/0xd0 [ 792.487652] smp_apic_timer_interrupt+0xb7/0x360 [ 792.487652] apic_timer_interrupt+0xf/0x20 [ 792.487652] [ 792.487652] RIP: 0010:trace_graph_entry+0x6e9/0x840 [ 792.487652] Code: 42 ff ff 48 c7 c7 10 10 37 83 e8 42 8a 26 00 48 83 3d 5a f4 f5 01 00 0f 84 fc 00 00 00 48 83 05 5c 8e 1d 04 01 4c 89 ff 57 9d <66> 66 90 66 90 48 83 05 6a 8e 1d 04 01 e9 4c f9 ff ff 4c 89 ff 48 [ 792.487652] RSP: 0018:ffff88800f11f908 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 792.487652] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81411bae [ 792.487652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 792.487652] RBP: ffff88800f11f988 R08: ffffed1014704706 R09: 0000000000000000 [ 792.487652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3823828 [ 792.487652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000202 [ 792.487652] ? trace_graph_entry+0x6ce/0x840 [ 792.487652] trace_graph_entry_watchdog+0x23/0xc0 [ 792.487652] function_graph_enter+0x275/0x370 [ 792.487652] ? ftrace_graph_stop+0x10/0x10 [ 792.487652] ? __phys_addr_symbol+0x60/0x60 [ 792.487652] ? trace_graph_return+0x2ed/0x410 [ 792.487652] ? __phys_addr_symbol+0x60/0x60 [ 792.487652] ? __check_object_size+0xc6/0x752 [ 792.487652] prepare_ftrace_return+0x7b/0xa0 [ 792.487652] ftrace_graph_caller+0x62/0xa0 [ 792.487652] ? __phys_addr+0x120/0x120 [ 792.487652] ? __check_object_size+0xb0/0x752 [ 792.487652] ? __check_object_size+0xbe/0x752 [ 792.487652] ? __phys_addr+0x5/0x120 [ 792.487652] ? return_to_handler+0x15/0x36 [ 792.487652] __phys_addr+0x5/0x120 [ 792.487652] ? ftrace_graph_caller+0xa0/0xa0 [ 792.487652] __check_object_size+0xc6/0x752 [ 792.487652] ? __probe_kernel_write+0x90/0x120 [ 792.487652] __probe_kernel_write+0xa0/0x120 [ 792.487652] ? ftrace_regs_caller_end+0x14/0x14 [ 792.487652] ftrace_write+0x22/0x60 [ 792.487652] ftrace_replace_code+0x2fb/0x350 [ 792.487652] ? ftrace_int3_handler+0x70/0x70 [ 792.487652] ? wait_for_completion+0x260/0x260 [ 792.487652] ftrace_modify_all_code+0x141/0x2b0 [ 792.487652] arch_ftrace_update_code+0x22/0x40 [ 792.487652] ftrace_run_update_code+0x2b/0xd0 [ 792.487652] ftrace_startup_enable+0x3a/0x70 [ 792.487652] ftrace_startup+0x162/0x200 [ 792.487652] register_ftrace_graph+0x658/0x6b0 [ 792.487652] trace_selftest_startup_function_graph+0xe4/0x238 [ 792.487652] ? trace_selftest_startup_function+0x91f/0x91f [ 792.487652] ? find_next_bit+0xba/0xd0 [ 792.487652] run_tracer_selftest+0x285/0x382 [ 792.487652] ? init_graph_tracefs+0x49/0x49 [ 792.487652] register_tracer+0x290/0x3f8 [ 792.487652] init_graph_trace+0xac/0xb4 [ 792.487652] do_one_initcall+0x101/0x64a [ 792.487652] ? perf_trace_initcall_level+0x280/0x280 [ 792.487652] ? __lock_is_held+0x38/0xd0 [ 792.487652] ? check_flags+0x250/0x250 [ 792.487652] kernel_init_freeable+0x4a6/0x58c [ 792.487652] ? rest_init+0x44d/0x44d [ 792.487652] kernel_init+0x11/0x1e3 [ 792.487652] ? rest_init+0x44d/0x44d [ 792.487652] ret_from_fork+0x3a/0x50 [ 792.487652] rcu: rcu_sched kthread starved for 123532 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 792.487652] rcu: RCU grace-period kthread stack dump: [ 792.487652] rcu_sched R running task 30600 10 2 0x80000000 [ 792.487652] Call Trace: [ 792.487652] ? __schedule+0x6af/0x1160 [ 792.487652] ? firmware_map_remove+0x115/0x115 [ 792.487652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 792.487652] schedule+0x46/0xc0 [ 792.487652] schedule_timeout+0x476/0xd00 [ 792.487652] ? mark_held_locks+0x23/0xb0 [ 792.487652] ? usleep_range+0x120/0x120 [ 792.487652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 792.487652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 792.487652] ? trace_hardirqs_on+0x33/0x270 [ 792.487652] ? __next_timer_interrupt+0x190/0x190 [ 792.487652] ? prepare_to_swait_exclusive+0x110/0x110 [ 792.487652] rcu_gp_kthread+0x8e8/0x14b0 [ 792.487652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 792.487652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 792.487652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 792.487652] ? trace_hardirqs_on+0x33/0x270 [ 792.487652] ? __kthread_parkme+0xdb/0x100 [ 792.487652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 792.487652] kthread+0x202/0x230 [ 792.487652] ? kthread_unpark+0xf0/0xf0 [ 792.487652] ret_from_fork+0x3a/0x50 [ 819.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 819.859652] Modules linked in: [ 819.859652] irq event stamp: 19612184 [ 819.859652] hardirqs last enabled at (19612183): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 819.859652] hardirqs last disabled at (19612184): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 819.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 819.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 819.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 819.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 819.859652] RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 [ 819.859652] Code: 49 29 df eb bf bb ea ff ff ff eb da 90 90 48 8b 34 24 65 48 8b 04 25 00 ff 01 00 65 8b 15 6c b5 c9 7e 81 e2 00 01 1f 00 75 2b <8b> 90 60 25 00 00 83 fa 02 75 20 48 8b 88 68 25 00 00 8b 80 64 25 [ 819.859652] RSP: 0018:ffff88800f11fb88 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 819.859652] RAX: ffff88800f111000 RBX: 00000000012dfec0 RCX: ffffffff8112c5b3 [ 819.859652] RDX: 0000000000000000 RSI: ffffffff8112c5c1 RDI: 0000000000000007 [ 819.859652] RBP: 0000000000000001 R08: ffff88800f111000 R09: 0000000000000000 [ 819.859652] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 819.859652] R13: 0000000000000001 R14: ffffffff82601ac0 R15: ffffffff855c3cc0 [ 819.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 819.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 819.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 819.859652] Call Trace: [ 819.859652] __phys_addr_symbol+0x31/0x60 [ 819.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 819.859652] ftrace_write+0x3d/0x60 [ 819.859652] ftrace_replace_code+0x2fb/0x350 [ 819.859652] ? ftrace_int3_handler+0x70/0x70 [ 819.859652] ? wait_for_completion+0x260/0x260 [ 819.859652] ftrace_modify_all_code+0x141/0x2b0 [ 819.859652] arch_ftrace_update_code+0x22/0x40 [ 819.859652] ftrace_run_update_code+0x2b/0xd0 [ 819.859652] ftrace_startup_enable+0x3a/0x70 [ 819.859652] ftrace_startup+0x162/0x200 [ 819.859652] register_ftrace_graph+0x658/0x6b0 [ 819.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 819.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 819.859652] ? find_next_bit+0xba/0xd0 [ 819.859652] run_tracer_selftest+0x285/0x382 [ 819.859652] ? init_graph_tracefs+0x49/0x49 [ 819.859652] register_tracer+0x290/0x3f8 [ 819.859652] init_graph_trace+0xac/0xb4 [ 819.859652] do_one_initcall+0x101/0x64a [ 819.859652] ? perf_trace_initcall_level+0x280/0x280 [ 819.859652] ? __lock_is_held+0x38/0xd0 [ 819.859652] ? check_flags+0x250/0x250 [ 819.859652] kernel_init_freeable+0x4a6/0x58c [ 819.859652] ? rest_init+0x44d/0x44d [ 819.859652] kernel_init+0x11/0x1e3 [ 819.859652] ? rest_init+0x44d/0x44d [ 819.859652] ret_from_fork+0x3a/0x50 [ 847.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 847.859652] Modules linked in: [ 847.859652] irq event stamp: 19626190 [ 847.859652] hardirqs last enabled at (19626189): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 847.859652] hardirqs last disabled at (19626190): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 847.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 847.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 847.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 847.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 847.859652] RIP: 0010:trace_graph_entry+0x6e9/0x840 [ 847.859652] Code: 42 ff ff 48 c7 c7 10 10 37 83 e8 42 8a 26 00 48 83 3d 5a f4 f5 01 00 0f 84 fc 00 00 00 48 83 05 5c 8e 1d 04 01 4c 89 ff 57 9d <66> 66 90 66 90 48 83 05 6a 8e 1d 04 01 e9 4c f9 ff ff 4c 89 ff 48 [ 847.859652] RSP: 0018:ffff88800f11f908 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 847.859652] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81411bae [ 847.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000206 [ 847.859652] RBP: ffff88800f11f988 R08: ffffed1014704706 R09: 0000000000000000 [ 847.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3823828 [ 847.859652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000206 [ 847.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 847.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 847.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 847.859652] Call Trace: [ 847.859652] trace_graph_entry_watchdog+0x23/0xc0 [ 847.859652] function_graph_enter+0x275/0x370 [ 847.859652] ? ftrace_graph_stop+0x10/0x10 [ 847.859652] ? __phys_addr+0x120/0x120 [ 847.859652] ? __phys_addr+0x120/0x120 [ 847.859652] ? __check_object_size+0xa4/0x752 [ 847.859652] prepare_ftrace_return+0x7b/0xa0 [ 847.859652] ftrace_graph_caller+0x62/0xa0 [ 847.859652] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 847.859652] ? __check_object_size+0x8d/0x752 [ 847.859652] ? __check_object_size+0x9c/0x752 [ 847.859652] ? __virt_addr_valid+0x5/0x1df [ 847.859652] __virt_addr_valid+0x5/0x1df [ 847.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 847.859652] __check_object_size+0xa4/0x752 [ 847.859652] ? __probe_kernel_write+0x90/0x120 [ 847.859652] __probe_kernel_write+0xa0/0x120 [ 847.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 847.859652] ftrace_write+0x22/0x60 [ 847.859652] ftrace_replace_code+0x2fb/0x350 [ 847.859652] ? ftrace_int3_handler+0x70/0x70 [ 847.859652] ? wait_for_completion+0x260/0x260 [ 847.859652] ftrace_modify_all_code+0x141/0x2b0 [ 847.859652] arch_ftrace_update_code+0x22/0x40 [ 847.859652] ftrace_run_update_code+0x2b/0xd0 [ 847.859652] ftrace_startup_enable+0x3a/0x70 [ 847.859652] ftrace_startup+0x162/0x200 [ 847.859652] register_ftrace_graph+0x658/0x6b0 [ 847.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 847.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 847.859652] ? find_next_bit+0xba/0xd0 [ 847.859652] run_tracer_selftest+0x285/0x382 [ 847.859652] ? init_graph_tracefs+0x49/0x49 [ 847.859652] register_tracer+0x290/0x3f8 [ 847.859652] init_graph_trace+0xac/0xb4 [ 847.859652] do_one_initcall+0x101/0x64a [ 847.859652] ? perf_trace_initcall_level+0x280/0x280 [ 847.859652] ? __lock_is_held+0x38/0xd0 [ 847.859652] ? check_flags+0x250/0x250 [ 847.859652] kernel_init_freeable+0x4a6/0x58c [ 847.859652] ? rest_init+0x44d/0x44d [ 847.859652] kernel_init+0x11/0x1e3 [ 847.859652] ? rest_init+0x44d/0x44d [ 847.859652] ret_from_fork+0x3a/0x50 [ 870.507652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 870.507652] rcu: (detected by 0, t=143037 jiffies, g=-1115, q=2) [ 870.507652] rcu: All QSes seen, last rcu_sched kthread activity 143037 (4295104385-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 870.507652] swapper/0 R running task 28008 1 0 0x80000008 [ 870.507652] Call Trace: [ 870.507652] [ 870.507652] ? ftrace_graph_caller+0xa0/0xa0 [ 870.507652] sched_show_task+0x28f/0x310 [ 870.507652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 870.507652] ? ftrace_graph_caller+0xa0/0xa0 [ 870.507652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 870.507652] ? ftrace_graph_caller+0xa0/0xa0 [ 870.507652] update_process_times+0x2d/0x70 [ 870.507652] ? ftrace_graph_caller+0xa0/0xa0 [ 870.507652] tick_periodic+0x5c/0x110 [ 870.507652] tick_handle_periodic+0x30/0xd0 [ 870.507652] smp_apic_timer_interrupt+0xb7/0x360 [ 870.507652] apic_timer_interrupt+0xf/0x20 [ 870.507652] [ 870.507652] RIP: 0010:trace_graph_return+0x308/0x410 [ 870.507652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 870.507652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 870.507652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 870.507652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 870.507652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 870.507652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 870.507652] R13: ffff88800f11fa40 R14: 0000000000000202 R15: ffff8880a38b2588 [ 870.507652] ? trace_graph_return+0x2ed/0x410 [ 870.507652] ? __check_object_size+0x2b3/0x752 [ 870.507652] ftrace_return_to_handler+0x1fb/0x2f0 [ 870.507652] ? function_graph_enter+0x370/0x370 [ 870.507652] ? pmd_set_huge.cold.11+0x73/0x73 [ 870.507652] ? __check_object_size+0x299/0x752 [ 870.507652] ? 0xffffffff81000000 [ 870.507652] return_to_handler+0x15/0x36 [ 870.507652] ? ftrace_graph_caller+0xa0/0xa0 [ 870.507652] ? __check_object_size+0x2b3/0x752 [ 870.507652] ? __probe_kernel_write+0xa0/0x120 [ 870.507652] ? ftrace_regs_caller_end+0x14/0x14 [ 870.507652] ? ftrace_write+0x22/0x60 [ 870.507652] ? ftrace_replace_code+0x2fb/0x350 [ 870.507652] ? ftrace_int3_handler+0x70/0x70 [ 870.507652] ? wait_for_completion+0x260/0x260 [ 870.507652] ? ftrace_modify_all_code+0x141/0x2b0 [ 870.507652] ? arch_ftrace_update_code+0x22/0x40 [ 870.507652] ? ftrace_run_update_code+0x2b/0xd0 [ 870.507652] ? ftrace_startup_enable+0x3a/0x70 [ 870.507652] ? ftrace_startup+0x162/0x200 [ 870.507652] ? register_ftrace_graph+0x658/0x6b0 [ 870.507652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 870.507652] ? trace_selftest_startup_function+0x91f/0x91f [ 870.507652] ? find_next_bit+0xba/0xd0 [ 870.507652] ? run_tracer_selftest+0x285/0x382 [ 870.507652] ? init_graph_tracefs+0x49/0x49 [ 870.507652] ? register_tracer+0x290/0x3f8 [ 870.507652] ? init_graph_trace+0xac/0xb4 [ 870.507652] ? do_one_initcall+0x101/0x64a [ 870.507652] ? perf_trace_initcall_level+0x280/0x280 [ 870.507652] ? __lock_is_held+0x38/0xd0 [ 870.507652] ? check_flags+0x250/0x250 [ 870.507652] ? kernel_init_freeable+0x4a6/0x58c [ 870.507652] ? rest_init+0x44d/0x44d [ 870.507652] ? kernel_init+0x11/0x1e3 [ 870.507652] ? rest_init+0x44d/0x44d [ 870.507652] ? ret_from_fork+0x3a/0x50 [ 870.507652] rcu: rcu_sched kthread starved for 143037 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 870.507652] rcu: RCU grace-period kthread stack dump: [ 870.507652] rcu_sched R running task 30600 10 2 0x80000000 [ 870.507652] Call Trace: [ 870.507652] ? __schedule+0x6af/0x1160 [ 870.507652] ? firmware_map_remove+0x115/0x115 [ 870.507652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 870.507652] schedule+0x46/0xc0 [ 870.507652] schedule_timeout+0x476/0xd00 [ 870.507652] ? mark_held_locks+0x23/0xb0 [ 870.507652] ? usleep_range+0x120/0x120 [ 870.507652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 870.507652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 870.507652] ? trace_hardirqs_on+0x33/0x270 [ 870.507652] ? __next_timer_interrupt+0x190/0x190 [ 870.507652] ? prepare_to_swait_exclusive+0x110/0x110 [ 870.507652] rcu_gp_kthread+0x8e8/0x14b0 [ 870.507652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 870.507652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 870.507652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 870.507652] ? trace_hardirqs_on+0x33/0x270 [ 870.507652] ? __kthread_parkme+0xdb/0x100 [ 870.507652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 870.507652] kthread+0x202/0x230 [ 870.507652] ? kthread_unpark+0xf0/0xf0 [ 870.507652] ret_from_fork+0x3a/0x50 [ 895.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 895.859652] Modules linked in: [ 895.859652] irq event stamp: 19650210 [ 895.859652] hardirqs last enabled at (19650209): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 895.859652] hardirqs last disabled at (19650210): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 895.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 895.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 895.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 895.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 895.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 895.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 895.859652] RSP: 0018:ffff88800f11faa0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 895.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 895.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000206 [ 895.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 895.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 895.859652] R13: ffff88800f11faf0 R14: 0000000000000206 R15: ffff8880a38b2588 [ 895.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 895.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 895.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 895.859652] Call Trace: [ 895.859652] ? ftrace_write+0x3d/0x60 [ 895.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 895.859652] ? function_graph_enter+0x370/0x370 [ 895.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 895.859652] ? ftrace_replace_code+0x2d0/0x350 [ 895.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 895.859652] return_to_handler+0x15/0x36 [ 895.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 895.859652] ? ftrace_write+0x3d/0x60 [ 895.859652] ? ftrace_replace_code+0x2fb/0x350 [ 895.859652] ? ftrace_int3_handler+0x70/0x70 [ 895.859652] ? wait_for_completion+0x260/0x260 [ 895.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 895.859652] ? arch_ftrace_update_code+0x22/0x40 [ 895.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 895.859652] ? ftrace_startup_enable+0x3a/0x70 [ 895.859652] ? ftrace_startup+0x162/0x200 [ 895.859652] ? register_ftrace_graph+0x658/0x6b0 [ 895.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 895.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 895.859652] ? find_next_bit+0xba/0xd0 [ 895.859652] ? run_tracer_selftest+0x285/0x382 [ 895.859652] ? init_graph_tracefs+0x49/0x49 [ 895.859652] ? register_tracer+0x290/0x3f8 [ 895.859652] ? init_graph_trace+0xac/0xb4 [ 895.859652] ? do_one_initcall+0x101/0x64a [ 895.859652] ? perf_trace_initcall_level+0x280/0x280 [ 895.859652] ? __lock_is_held+0x38/0xd0 [ 895.859652] ? check_flags+0x250/0x250 [ 895.859652] ? kernel_init_freeable+0x4a6/0x58c [ 895.859652] ? rest_init+0x44d/0x44d [ 895.859652] ? kernel_init+0x11/0x1e3 [ 895.859652] ? rest_init+0x44d/0x44d [ 895.859652] ? ret_from_fork+0x3a/0x50 [ 923.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 923.859652] Modules linked in: [ 923.859652] irq event stamp: 19664216 [ 923.859652] hardirqs last enabled at (19664215): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 923.859652] hardirqs last disabled at (19664216): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 923.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 923.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 923.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 923.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 923.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 923.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 923.859652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 923.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 923.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 923.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 923.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 923.859652] R13: ffff88800f11fa40 R14: 0000000000000202 R15: ffff8880a38b2588 [ 923.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 923.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 923.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 923.859652] Call Trace: [ 923.859652] ? __check_object_size+0xa4/0x752 [ 923.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 923.859652] ? function_graph_enter+0x370/0x370 [ 923.859652] ? __phys_addr+0x120/0x120 [ 923.859652] ? __virt_addr_valid+0x10d/0x1df [ 923.859652] ? __virt_addr_valid+0x101/0x1df [ 923.859652] return_to_handler+0x15/0x36 [ 923.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 923.859652] ? __check_object_size+0xa4/0x752 [ 923.859652] ? __probe_kernel_write+0x90/0x120 [ 923.859652] ? __probe_kernel_write+0xa0/0x120 [ 923.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 923.859652] ? ftrace_write+0x22/0x60 [ 923.859652] ? ftrace_replace_code+0x2fb/0x350 [ 923.859652] ? ftrace_int3_handler+0x70/0x70 [ 923.859652] ? wait_for_completion+0x260/0x260 [ 923.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 923.859652] ? arch_ftrace_update_code+0x22/0x40 [ 923.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 923.859652] ? ftrace_startup_enable+0x3a/0x70 [ 923.859652] ? ftrace_startup+0x162/0x200 [ 923.859652] ? register_ftrace_graph+0x658/0x6b0 [ 923.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 923.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 923.859652] ? find_next_bit+0xba/0xd0 [ 923.859652] ? run_tracer_selftest+0x285/0x382 [ 923.859652] ? init_graph_tracefs+0x49/0x49 [ 923.859652] ? register_tracer+0x290/0x3f8 [ 923.859652] ? init_graph_trace+0xac/0xb4 [ 923.859652] ? do_one_initcall+0x101/0x64a [ 923.859652] ? perf_trace_initcall_level+0x280/0x280 [ 923.859652] ? __lock_is_held+0x38/0xd0 [ 923.859652] ? check_flags+0x250/0x250 [ 923.859652] ? kernel_init_freeable+0x4a6/0x58c [ 923.859652] ? rest_init+0x44d/0x44d [ 923.859652] ? kernel_init+0x11/0x1e3 [ 923.859652] ? rest_init+0x44d/0x44d [ 923.859652] ? ret_from_fork+0x3a/0x50 [ 948.527652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 948.527652] rcu: (detected by 0, t=162542 jiffies, g=-1115, q=2) [ 948.527652] rcu: All QSes seen, last rcu_sched kthread activity 162542 (4295123890-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 948.527652] swapper/0 R running task 28008 1 0 0x80000008 [ 948.527652] Call Trace: [ 948.527652] [ 948.527652] ? ftrace_graph_caller+0xa0/0xa0 [ 948.527652] sched_show_task+0x28f/0x310 [ 948.527652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 948.527652] ? ftrace_graph_caller+0xa0/0xa0 [ 948.527652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 948.527652] ? ftrace_graph_caller+0xa0/0xa0 [ 948.527652] update_process_times+0x2d/0x70 [ 948.527652] ? ftrace_graph_caller+0xa0/0xa0 [ 948.527652] tick_periodic+0x5c/0x110 [ 948.527652] tick_handle_periodic+0x30/0xd0 [ 948.527652] smp_apic_timer_interrupt+0xb7/0x360 [ 948.527652] apic_timer_interrupt+0xf/0x20 [ 948.527652] [ 948.527652] RIP: 0010:native_sched_clock+0x7a/0x100 [ 948.527652] Code: c1 e6 04 65 48 8b 5c 30 08 48 89 ce 48 c1 e6 04 65 8b 34 30 48 c1 e1 04 65 8b 4c 08 04 65 44 8b 05 cb c5 19 7f 44 39 c7 75 c6 <41> 89 f5 4c 89 f0 49 f7 e5 49 89 c5 49 89 d6 83 f9 7f 0f 87 cb 1b [ 948.527652] RSP: 0018:ffff88800f11f8e0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 948.527652] RAX: 00000000002191c0 RBX: ffffffffbf3391a8 RCX: 000000000000001f [ 948.527652] RDX: 0000035c45657094 RSI: 000000002497beeb RDI: 0000000000000002 [ 948.527652] RBP: ffff88800f11f928 R08: 0000000000000002 R09: ffffed1001e226a9 [ 948.527652] R10: ffffed1001e226a9 R11: ffff88800f11354f R12: ffff88800f113538 [ 948.527652] R13: 1ffff11001e23f2d R14: 0000035c45657094 R15: ffff88800f11352c [ 948.527652] ? pmd_set_huge.cold.11+0x73/0x73 [ 948.527652] sched_clock+0x1b/0x30 [ 948.527652] trace_clock_local+0x1c/0x40 [ 948.527652] function_graph_enter+0x135/0x370 [ 948.527652] ? __check_object_size+0x274/0x752 [ 948.527652] ? ftrace_graph_stop+0x10/0x10 [ 948.527652] ? pmd_set_huge.cold.11+0x73/0x73 [ 948.527652] ? check_memory_region+0x13f/0x1e0 [ 948.527652] ? pmd_set_huge.cold.11+0x73/0x73 [ 948.527652] ? __check_object_size+0x274/0x752 [ 948.527652] prepare_ftrace_return+0x7b/0xa0 [ 948.527652] ? 0xffffffff81000000 [ 948.527652] ftrace_graph_caller+0x62/0xa0 [ 948.527652] ? __check_object_size+0x245/0x752 [ 948.527652] ? __check_object_size+0x268/0x752 [ 948.527652] ? 0xffffffff81000000 [ 948.527652] ? __phys_addr_symbol+0x5/0x60 [ 948.527652] __phys_addr_symbol+0x5/0x60 [ 948.527652] ftrace_graph_caller+0xa0/0xa0 [ 948.527652] ? __probe_kernel_write+0xa0/0x120 [ 948.527652] ? ftrace_regs_caller_end+0x14/0x14 [ 948.527652] ? ftrace_write+0x22/0x60 [ 948.527652] ? ftrace_replace_code+0x2fb/0x350 [ 948.527652] ? ftrace_int3_handler+0x70/0x70 [ 948.527652] ? wait_for_completion+0x260/0x260 [ 948.527652] ? ftrace_modify_all_code+0x141/0x2b0 [ 948.527652] ? arch_ftrace_update_code+0x22/0x40 [ 948.527652] ? ftrace_run_update_code+0x2b/0xd0 [ 948.527652] ? ftrace_startup_enable+0x3a/0x70 [ 948.527652] ? ftrace_startup+0x162/0x200 [ 948.527652] ? register_ftrace_graph+0x658/0x6b0 [ 948.527652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 948.527652] ? trace_selftest_startup_function+0x91f/0x91f [ 948.527652] ? find_next_bit+0xba/0xd0 [ 948.527652] ? run_tracer_selftest+0x285/0x382 [ 948.527652] ? init_graph_tracefs+0x49/0x49 [ 948.527652] ? register_tracer+0x290/0x3f8 [ 948.527652] ? init_graph_trace+0xac/0xb4 [ 948.527652] ? do_one_initcall+0x101/0x64a [ 948.527652] ? perf_trace_initcall_level+0x280/0x280 [ 948.527652] ? __lock_is_held+0x38/0xd0 [ 948.527652] ? check_flags+0x250/0x250 [ 948.527652] ? kernel_init_freeable+0x4a6/0x58c [ 948.527652] ? rest_init+0x44d/0x44d [ 948.527652] ? kernel_init+0x11/0x1e3 [ 948.527652] ? rest_init+0x44d/0x44d [ 948.527652] ? ret_from_fork+0x3a/0x50 [ 948.527652] rcu: rcu_sched kthread starved for 162542 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 948.527652] rcu: RCU grace-period kthread stack dump: [ 948.527652] rcu_sched R running task 30600 10 2 0x80000000 [ 948.527652] Call Trace: [ 948.527652] ? __schedule+0x6af/0x1160 [ 948.527652] ? firmware_map_remove+0x115/0x115 [ 948.527652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 948.527652] schedule+0x46/0xc0 [ 948.527652] schedule_timeout+0x476/0xd00 [ 948.527652] ? mark_held_locks+0x23/0xb0 [ 948.527652] ? usleep_range+0x120/0x120 [ 948.527652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 948.527652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 948.527652] ? trace_hardirqs_on+0x33/0x270 [ 948.527652] ? __next_timer_interrupt+0x190/0x190 [ 948.527652] ? prepare_to_swait_exclusive+0x110/0x110 [ 948.527652] rcu_gp_kthread+0x8e8/0x14b0 [ 948.527652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 948.527652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 948.527652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 948.527652] ? trace_hardirqs_on+0x33/0x270 [ 948.527652] ? __kthread_parkme+0xdb/0x100 [ 948.527652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 948.527652] kthread+0x202/0x230 [ 948.527652] ? kthread_unpark+0xf0/0xf0 [ 948.527652] ret_from_fork+0x3a/0x50 [ 975.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 975.859652] Modules linked in: [ 975.859652] irq event stamp: 19690232 [ 975.859652] hardirqs last enabled at (19690231): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 975.859652] hardirqs last disabled at (19690232): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 975.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 975.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 975.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 975.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 975.859652] RIP: 0010:trace_graph_entry+0x6e9/0x840 [ 975.859652] Code: 42 ff ff 48 c7 c7 10 10 37 83 e8 42 8a 26 00 48 83 3d 5a f4 f5 01 00 0f 84 fc 00 00 00 48 83 05 5c 8e 1d 04 01 4c 89 ff 57 9d <66> 66 90 66 90 48 83 05 6a 8e 1d 04 01 e9 4c f9 ff ff 4c 89 ff 48 [ 975.859652] RSP: 0018:ffff88800f11f9b8 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff13 [ 975.859652] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81411bae [ 975.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000212 [ 975.859652] RBP: ffff88800f11fa38 R08: ffffed1014704706 R09: 0000000000000000 [ 975.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3823828 [ 975.859652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000212 [ 975.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 975.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 975.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 975.859652] Call Trace: [ 975.859652] trace_graph_entry_watchdog+0x23/0xc0 [ 975.859652] function_graph_enter+0x275/0x370 [ 975.859652] ? ftrace_graph_stop+0x10/0x10 [ 975.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 975.859652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 975.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 975.859652] ? ftrace_write+0x3d/0x60 [ 975.859652] prepare_ftrace_return+0x7b/0xa0 [ 975.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 975.859652] ftrace_graph_caller+0x62/0xa0 [ 975.859652] ? smp_apic_timer_interrupt+0xf0/0x360 [ 975.859652] ? retint_kernel+0x10/0x10 [ 975.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 975.859652] ? ftrace_replace_code+0x2d0/0x350 [ 975.859652] ? timer_list_show_tickdevices_header+0x90/0x90 [ 975.859652] ? __phys_addr_symbol+0x5/0x60 [ 975.859652] ? timer_list_show_tickdevices_header+0x90/0x90 [ 975.859652] ? ftrace_get_addr_new+0x151/0x270 [ 975.859652] __phys_addr_symbol+0x5/0x60 [ 975.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 975.859652] ftrace_write+0x3d/0x60 [ 975.859652] ftrace_replace_code+0x2fb/0x350 [ 975.859652] ? ftrace_int3_handler+0x70/0x70 [ 975.859652] ? wait_for_completion+0x260/0x260 [ 975.859652] ftrace_modify_all_code+0x141/0x2b0 [ 975.859652] arch_ftrace_update_code+0x22/0x40 [ 975.859652] ftrace_run_update_code+0x2b/0xd0 [ 975.859652] ftrace_startup_enable+0x3a/0x70 [ 975.859652] ftrace_startup+0x162/0x200 [ 975.859652] register_ftrace_graph+0x658/0x6b0 [ 975.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 975.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 975.859652] ? find_next_bit+0xba/0xd0 [ 975.859652] run_tracer_selftest+0x285/0x382 [ 975.859652] ? init_graph_tracefs+0x49/0x49 [ 975.859652] register_tracer+0x290/0x3f8 [ 975.859652] init_graph_trace+0xac/0xb4 [ 975.859652] do_one_initcall+0x101/0x64a [ 975.859652] ? perf_trace_initcall_level+0x280/0x280 [ 975.859652] ? __lock_is_held+0x38/0xd0 [ 975.859652] ? check_flags+0x250/0x250 [ 975.859652] kernel_init_freeable+0x4a6/0x58c [ 975.859652] ? rest_init+0x44d/0x44d [ 975.859652] kernel_init+0x11/0x1e3 [ 975.859652] ? rest_init+0x44d/0x44d [ 975.859652] ret_from_fork+0x3a/0x50 [ 1003.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1003.859652] Modules linked in: [ 1003.859652] irq event stamp: 19704238 [ 1003.859652] hardirqs last enabled at (19704237): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1003.859652] hardirqs last disabled at (19704238): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1003.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1003.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1003.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1003.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1003.859652] RIP: 0010:__virt_addr_valid+0x119/0x1df [ 1003.859652] Code: 9d 82 25 00 4d 85 ed 0f 85 83 00 00 00 e8 ff 80 25 00 48 c7 c7 20 1f 62 85 e8 d3 dd 54 00 4c 8b 2d fc 56 4f 04 4d 85 ed 74 66 e2 80 25 00 48 c1 ed 22 49 8d 6c ed 00 48 89 ef e8 b1 dd 54 00 [ 1003.859652] RSP: 0018:ffff88800f11fac8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 1003.859652] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8112c81d [ 1003.859652] RDX: dffffc0000000000 RSI: ffffffff8112c811 RDI: ffffffff85621f20 [ 1003.859652] RBP: 000000000490b020 R08: ffff88800f111000 R09: fffffbfff0921604 [ 1003.859652] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1003.859652] R13: ffff8880bffbf000 R14: ffffffff8490b021 R15: ffff88800f1135b8 [ 1003.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1003.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1003.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1003.859652] Call Trace: [ 1003.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1003.859652] __check_object_size+0xa4/0x752 [ 1003.859652] ? __probe_kernel_write+0x90/0x120 [ 1003.859652] __probe_kernel_write+0xa0/0x120 [ 1003.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1003.859652] ftrace_write+0x22/0x60 [ 1003.859652] ftrace_replace_code+0x2fb/0x350 [ 1003.859652] ? ftrace_int3_handler+0x70/0x70 [ 1003.859652] ? wait_for_completion+0x260/0x260 [ 1003.859652] ftrace_modify_all_code+0x141/0x2b0 [ 1003.859652] arch_ftrace_update_code+0x22/0x40 [ 1003.859652] ftrace_run_update_code+0x2b/0xd0 [ 1003.859652] ftrace_startup_enable+0x3a/0x70 [ 1003.859652] ftrace_startup+0x162/0x200 [ 1003.859652] register_ftrace_graph+0x658/0x6b0 [ 1003.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1003.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1003.859652] ? find_next_bit+0xba/0xd0 [ 1003.859652] run_tracer_selftest+0x285/0x382 [ 1003.859652] ? init_graph_tracefs+0x49/0x49 [ 1003.859652] register_tracer+0x290/0x3f8 [ 1003.859652] init_graph_trace+0xac/0xb4 [ 1003.859652] do_one_initcall+0x101/0x64a [ 1003.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1003.859652] ? __lock_is_held+0x38/0xd0 [ 1003.859652] ? check_flags+0x250/0x250 [ 1003.859652] kernel_init_freeable+0x4a6/0x58c [ 1003.859652] ? rest_init+0x44d/0x44d [ 1003.859652] kernel_init+0x11/0x1e3 [ 1003.859652] ? rest_init+0x44d/0x44d [ 1003.859652] ret_from_fork+0x3a/0x50 [ 1026.547652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1026.547652] rcu: (detected by 0, t=182047 jiffies, g=-1115, q=2) [ 1026.547652] rcu: All QSes seen, last rcu_sched kthread activity 182047 (4295143395-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1026.547652] swapper/0 R running task 28008 1 0 0x80000008 [ 1026.547652] Call Trace: [ 1026.547652] [ 1026.547652] ? ftrace_graph_caller+0xa0/0xa0 [ 1026.547652] sched_show_task+0x28f/0x310 [ 1026.547652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 1026.547652] ? ftrace_graph_caller+0xa0/0xa0 [ 1026.547652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 1026.547652] ? ftrace_graph_caller+0xa0/0xa0 [ 1026.547652] update_process_times+0x2d/0x70 [ 1026.547652] ? ftrace_graph_caller+0xa0/0xa0 [ 1026.547652] tick_periodic+0x5c/0x110 [ 1026.547652] tick_handle_periodic+0x30/0xd0 [ 1026.547652] smp_apic_timer_interrupt+0xb7/0x360 [ 1026.547652] apic_timer_interrupt+0xf/0x20 [ 1026.547652] [ 1026.547652] RIP: 0010:__asan_load4+0x0/0x90 [ 1026.547652] Code: 00 e9 94 f6 ff ff 48 ba 00 00 00 00 00 fc ff df 48 89 fe 48 c1 ee 03 80 3c 16 00 75 da 48 c1 e8 03 80 3c 10 00 75 c9 c3 66 90 <48> 8b 0c 24 eb 39 66 66 90 48 b8 00 00 00 00 00 00 00 ff 48 39 f8 [ 1026.547652] RSP: 0018:ffff88800f11fa18 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 1026.547652] RAX: 0000000000000000 RBX: ffff88800f111000 RCX: ffffffff8112c876 [ 1026.547652] RDX: 0000000000000000 RSI: ffffffff8112c882 RDI: ffff88800f11352c [ 1026.547652] RBP: 0000000000000001 R08: ffff88800f111000 R09: fffffbfff0921604 [ 1026.547652] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff11001e23f44 [ 1026.547652] R13: 0000000000000001 R14: ffffffff8490b021 R15: ffff88800f1135b8 [ 1026.547652] ? __virt_addr_valid+0x166/0x1df [ 1026.547652] ? __virt_addr_valid+0x172/0x1df [ 1026.547652] ? retint_kernel+0x10/0x10 [ 1026.547652] ftrace_return_to_handler+0x7e/0x2f0 [ 1026.547652] ? function_graph_enter+0x370/0x370 [ 1026.547652] ? __virt_addr_valid+0x10d/0x1df [ 1026.547652] ? __virt_addr_valid+0x101/0x1df [ 1026.547652] return_to_handler+0x15/0x36 [ 1026.547652] ? ftrace_graph_caller+0xa0/0xa0 [ 1026.547652] ? __check_object_size+0xa4/0x752 [ 1026.547652] ? __probe_kernel_write+0x90/0x120 [ 1026.547652] ? __probe_kernel_write+0xa0/0x120 [ 1026.547652] ? ftrace_regs_caller_end+0x14/0x14 [ 1026.547652] ? ftrace_write+0x22/0x60 [ 1026.547652] ? ftrace_replace_code+0x2fb/0x350 [ 1026.547652] ? ftrace_int3_handler+0x70/0x70 [ 1026.547652] ? wait_for_completion+0x260/0x260 [ 1026.547652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1026.547652] ? arch_ftrace_update_code+0x22/0x40 [ 1026.547652] ? ftrace_run_update_code+0x2b/0xd0 [ 1026.547652] ? ftrace_startup_enable+0x3a/0x70 [ 1026.547652] ? ftrace_startup+0x162/0x200 [ 1026.547652] ? register_ftrace_graph+0x658/0x6b0 [ 1026.547652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1026.547652] ? trace_selftest_startup_function+0x91f/0x91f [ 1026.547652] ? find_next_bit+0xba/0xd0 [ 1026.547652] ? run_tracer_selftest+0x285/0x382 [ 1026.547652] ? init_graph_tracefs+0x49/0x49 [ 1026.547652] ? register_tracer+0x290/0x3f8 [ 1026.547652] ? init_graph_trace+0xac/0xb4 [ 1026.547652] ? do_one_initcall+0x101/0x64a [ 1026.547652] ? perf_trace_initcall_level+0x280/0x280 [ 1026.547652] ? __lock_is_held+0x38/0xd0 [ 1026.547652] ? check_flags+0x250/0x250 [ 1026.547652] ? kernel_init_freeable+0x4a6/0x58c [ 1026.547652] ? rest_init+0x44d/0x44d [ 1026.547652] ? kernel_init+0x11/0x1e3 [ 1026.547652] ? rest_init+0x44d/0x44d [ 1026.547652] ? ret_from_fork+0x3a/0x50 [ 1026.547652] rcu: rcu_sched kthread starved for 182047 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 1026.547652] rcu: RCU grace-period kthread stack dump: [ 1026.547652] rcu_sched R running task 30600 10 2 0x80000000 [ 1026.547652] Call Trace: [ 1026.547652] ? __schedule+0x6af/0x1160 [ 1026.547652] ? firmware_map_remove+0x115/0x115 [ 1026.547652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1026.547652] schedule+0x46/0xc0 [ 1026.547652] schedule_timeout+0x476/0xd00 [ 1026.547652] ? mark_held_locks+0x23/0xb0 [ 1026.547652] ? usleep_range+0x120/0x120 [ 1026.547652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1026.547652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1026.547652] ? trace_hardirqs_on+0x33/0x270 [ 1026.547652] ? __next_timer_interrupt+0x190/0x190 [ 1026.547652] ? prepare_to_swait_exclusive+0x110/0x110 [ 1026.547652] rcu_gp_kthread+0x8e8/0x14b0 [ 1026.547652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1026.547652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1026.547652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1026.547652] ? trace_hardirqs_on+0x33/0x270 [ 1026.547652] ? __kthread_parkme+0xdb/0x100 [ 1026.547652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1026.547652] kthread+0x202/0x230 [ 1026.547652] ? kthread_unpark+0xf0/0xf0 [ 1026.547652] ret_from_fork+0x3a/0x50 [ 1051.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1051.859652] Modules linked in: [ 1051.859652] irq event stamp: 19728248 [ 1051.859652] hardirqs last enabled at (19728247): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1051.859652] hardirqs last disabled at (19728248): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1051.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1051.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1051.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1051.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1051.859652] RIP: 0010:trace_graph_entry+0x6e9/0x840 [ 1051.859652] Code: 42 ff ff 48 c7 c7 10 10 37 83 e8 42 8a 26 00 48 83 3d 5a f4 f5 01 00 0f 84 fc 00 00 00 48 83 05 5c 8e 1d 04 01 4c 89 ff 57 9d <66> 66 90 66 90 48 83 05 6a 8e 1d 04 01 e9 4c f9 ff ff 4c 89 ff 48 [ 1051.859652] RSP: 0018:ffff88800f11f908 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 1051.859652] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81411bae [ 1051.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000206 [ 1051.859652] RBP: ffff88800f11f988 R08: ffffed1014704706 R09: 0000000000000000 [ 1051.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3823828 [ 1051.859652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000206 [ 1051.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1051.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1051.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1051.859652] Call Trace: [ 1051.859652] trace_graph_entry_watchdog+0x23/0xc0 [ 1051.859652] function_graph_enter+0x275/0x370 [ 1051.859652] ? ftrace_graph_stop+0x10/0x10 [ 1051.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1051.859652] ? __check_object_size+0x245/0x752 [ 1051.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1051.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1051.859652] ? __check_object_size+0x274/0x752 [ 1051.859652] prepare_ftrace_return+0x7b/0xa0 [ 1051.859652] ? 0xffffffff81000000 [ 1051.859652] ftrace_graph_caller+0x62/0xa0 [ 1051.859652] ? __check_object_size+0x245/0x752 [ 1051.859652] ? __check_object_size+0x268/0x752 [ 1051.859652] ? 0xffffffff81000000 [ 1051.859652] ? __phys_addr_symbol+0x5/0x60 [ 1051.859652] __phys_addr_symbol+0x5/0x60 [ 1051.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1051.859652] __check_object_size+0x274/0x752 [ 1051.859652] __probe_kernel_write+0xa0/0x120 [ 1051.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1051.859652] ftrace_write+0x22/0x60 [ 1051.859652] ftrace_replace_code+0x2fb/0x350 [ 1051.859652] ? ftrace_int3_handler+0x70/0x70 [ 1051.859652] ? wait_for_completion+0x260/0x260 [ 1051.859652] ftrace_modify_all_code+0x141/0x2b0 [ 1051.859652] arch_ftrace_update_code+0x22/0x40 [ 1051.859652] ftrace_run_update_code+0x2b/0xd0 [ 1051.859652] ftrace_startup_enable+0x3a/0x70 [ 1051.859652] ftrace_startup+0x162/0x200 [ 1051.859652] register_ftrace_graph+0x658/0x6b0 [ 1051.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1051.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1051.859652] ? find_next_bit+0xba/0xd0 [ 1051.859652] run_tracer_selftest+0x285/0x382 [ 1051.859652] ? init_graph_tracefs+0x49/0x49 [ 1051.859652] register_tracer+0x290/0x3f8 [ 1051.859652] init_graph_trace+0xac/0xb4 [ 1051.859652] do_one_initcall+0x101/0x64a [ 1051.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1051.859652] ? __lock_is_held+0x38/0xd0 [ 1051.859652] ? check_flags+0x250/0x250 [ 1051.859652] kernel_init_freeable+0x4a6/0x58c [ 1051.859652] ? rest_init+0x44d/0x44d [ 1051.859652] kernel_init+0x11/0x1e3 [ 1051.859652] ? rest_init+0x44d/0x44d [ 1051.859652] ret_from_fork+0x3a/0x50 [ 1079.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1079.859652] Modules linked in: [ 1079.859652] irq event stamp: 19742254 [ 1079.859652] hardirqs last enabled at (19742253): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1079.859652] hardirqs last disabled at (19742254): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1079.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1079.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1079.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1079.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1079.859652] RIP: 0010:ftrace_replace_code+0x2ab/0x350 [ 1079.859652] Code: 00 4c 89 ff 83 c5 01 e8 53 c3 2c 00 49 89 c7 48 85 c0 74 6e 4c 89 ff e8 13 c5 2c 00 44 89 e6 48 89 c3 48 89 c7 e8 35 ac 2c 00 <48> 89 df 41 89 c5 e8 6a ac 2c 00 49 89 c6 45 85 ed 7e c4 41 83 fd [ 1079.859652] RSP: 0018:ffff88800f11fbc0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 1079.859652] RAX: 0000000000000001 RBX: ffff88800fd159b0 RCX: 0000000090000000 [ 1079.859652] RDX: 0000000080000000 RSI: 0000000090000001 RDI: 0000000000000000 [ 1079.859652] RBP: 000000000000159b R08: 0000000090000000 R09: 0000000000000000 [ 1079.859652] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 1079.859652] R13: 0000000000000000 R14: ffffffff82601ac0 R15: ffffffff855c3cc0 [ 1079.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1079.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1079.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1079.859652] Call Trace: [ 1079.859652] ? ftrace_int3_handler+0x70/0x70 [ 1079.859652] ? wait_for_completion+0x260/0x260 [ 1079.859652] ftrace_modify_all_code+0x141/0x2b0 [ 1079.859652] arch_ftrace_update_code+0x22/0x40 [ 1079.859652] ftrace_run_update_code+0x2b/0xd0 [ 1079.859652] ftrace_startup_enable+0x3a/0x70 [ 1079.859652] ftrace_startup+0x162/0x200 [ 1079.859652] register_ftrace_graph+0x658/0x6b0 [ 1079.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1079.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1079.859652] ? find_next_bit+0xba/0xd0 [ 1079.859652] run_tracer_selftest+0x285/0x382 [ 1079.859652] ? init_graph_tracefs+0x49/0x49 [ 1079.859652] register_tracer+0x290/0x3f8 [ 1079.859652] init_graph_trace+0xac/0xb4 [ 1079.859652] do_one_initcall+0x101/0x64a [ 1079.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1079.859652] ? __lock_is_held+0x38/0xd0 [ 1079.859652] ? check_flags+0x250/0x250 [ 1079.859652] kernel_init_freeable+0x4a6/0x58c [ 1079.859652] ? rest_init+0x44d/0x44d [ 1079.859652] kernel_init+0x11/0x1e3 [ 1079.859652] ? rest_init+0x44d/0x44d [ 1079.859652] ret_from_fork+0x3a/0x50 [ 1104.567652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1104.567652] rcu: (detected by 0, t=201552 jiffies, g=-1115, q=2) [ 1104.567652] rcu: All QSes seen, last rcu_sched kthread activity 201552 (4295162900-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1104.567652] swapper/0 R running task 28008 1 0 0x80000008 [ 1104.567652] Call Trace: [ 1104.567652] [ 1104.567652] ? ftrace_graph_caller+0xa0/0xa0 [ 1104.567652] sched_show_task+0x28f/0x310 [ 1104.567652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 1104.567652] ? ftrace_graph_caller+0xa0/0xa0 [ 1104.567652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 1104.567652] ? ftrace_graph_caller+0xa0/0xa0 [ 1104.567652] update_process_times+0x2d/0x70 [ 1104.567652] ? ftrace_graph_caller+0xa0/0xa0 [ 1104.567652] tick_periodic+0x5c/0x110 [ 1104.567652] tick_handle_periodic+0x30/0xd0 [ 1104.567652] smp_apic_timer_interrupt+0xb7/0x360 [ 1104.567652] apic_timer_interrupt+0xf/0x20 [ 1104.567652] [ 1104.567652] RIP: 0010:ftrace_return_to_handler+0x165/0x2f0 [ 1104.567652] Code: e8 70 da 25 00 48 8b 45 10 48 8d ab 48 25 00 00 be 04 00 00 00 48 89 ef 48 83 05 55 37 1d 04 01 48 89 44 24 30 e8 4b b2 25 00 <48> 89 ef 48 83 05 48 37 1d 04 01 48 83 05 48 37 1d 04 01 e8 03 d9 [ 1104.567652] RSP: 0018:ffff88800f11fad0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1104.567652] RAX: ffffed1001e226aa RBX: ffff88800f111000 RCX: ffffffff8141cba5 [ 1104.567652] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88800f113548 [ 1104.567652] RBP: ffff88800f113548 R08: ffffed1001e226aa R09: ffffed1001e226a9 [ 1104.567652] R10: ffffed1001e226a9 R11: ffff88800f11354b R12: 1ffff11001e23f5a [ 1104.567652] R13: ffffffff810f0f9d R14: ffff88800f113538 R15: ffff8880a38b2588 [ 1104.567652] ? ftrace_write+0x3d/0x60 [ 1104.567652] ? ftrace_return_to_handler+0x165/0x2f0 [ 1104.567652] ? function_graph_enter+0x370/0x370 [ 1104.567652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1104.567652] ? __phys_addr_symbol+0x23/0x60 [ 1104.567652] ? __phys_addr_symbol+0x31/0x60 [ 1104.567652] ? ftrace_regs_caller_end+0x14/0x14 [ 1104.567652] return_to_handler+0x15/0x36 [ 1104.567652] ? ftrace_graph_caller+0xa0/0xa0 [ 1104.567652] ? ftrace_write+0x3d/0x60 [ 1104.567652] ? ftrace_replace_code+0x2fb/0x350 [ 1104.567652] ? ftrace_int3_handler+0x70/0x70 [ 1104.567652] ? wait_for_completion+0x260/0x260 [ 1104.567652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1104.567652] ? arch_ftrace_update_code+0x22/0x40 [ 1104.567652] ? ftrace_run_update_code+0x2b/0xd0 [ 1104.567652] ? ftrace_startup_enable+0x3a/0x70 [ 1104.567652] ? ftrace_startup+0x162/0x200 [ 1104.567652] ? register_ftrace_graph+0x658/0x6b0 [ 1104.567652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1104.567652] ? trace_selftest_startup_function+0x91f/0x91f [ 1104.567652] ? find_next_bit+0xba/0xd0 [ 1104.567652] ? run_tracer_selftest+0x285/0x382 [ 1104.567652] ? init_graph_tracefs+0x49/0x49 [ 1104.567652] ? register_tracer+0x290/0x3f8 [ 1104.567652] ? init_graph_trace+0xac/0xb4 [ 1104.567652] ? do_one_initcall+0x101/0x64a [ 1104.567652] ? perf_trace_initcall_level+0x280/0x280 [ 1104.567652] ? __lock_is_held+0x38/0xd0 [ 1104.567652] ? check_flags+0x250/0x250 [ 1104.567652] ? kernel_init_freeable+0x4a6/0x58c [ 1104.567652] ? rest_init+0x44d/0x44d [ 1104.567652] ? kernel_init+0x11/0x1e3 [ 1104.567652] ? rest_init+0x44d/0x44d [ 1104.567652] ? ret_from_fork+0x3a/0x50 [ 1104.567652] rcu: rcu_sched kthread starved for 201552 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 1104.567652] rcu: RCU grace-period kthread stack dump: [ 1104.567652] rcu_sched R running task 30600 10 2 0x80000000 [ 1104.567652] Call Trace: [ 1104.567652] ? __schedule+0x6af/0x1160 [ 1104.567652] ? firmware_map_remove+0x115/0x115 [ 1104.567652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1104.567652] schedule+0x46/0xc0 [ 1104.567652] schedule_timeout+0x476/0xd00 [ 1104.567652] ? mark_held_locks+0x23/0xb0 [ 1104.567652] ? usleep_range+0x120/0x120 [ 1104.567652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1104.567652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1104.567652] ? trace_hardirqs_on+0x33/0x270 [ 1104.567652] ? __next_timer_interrupt+0x190/0x190 [ 1104.567652] ? prepare_to_swait_exclusive+0x110/0x110 [ 1104.567652] rcu_gp_kthread+0x8e8/0x14b0 [ 1104.567652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1104.567652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1104.567652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1104.567652] ? trace_hardirqs_on+0x33/0x270 [ 1104.567652] ? __kthread_parkme+0xdb/0x100 [ 1104.567652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1104.567652] kthread+0x202/0x230 [ 1104.567652] ? kthread_unpark+0xf0/0xf0 [ 1104.567652] ret_from_fork+0x3a/0x50 [ 1131.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 1131.859652] Modules linked in: [ 1131.859652] irq event stamp: 19768268 [ 1131.859652] hardirqs last enabled at (19768267): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1131.859652] hardirqs last disabled at (19768268): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1131.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1131.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1131.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1131.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1131.859652] RIP: 0010:__asan_load8+0x0/0xa0 [ 1131.859652] Code: 30 84 c0 74 c3 38 d0 0f 9e c0 84 c0 74 ba ba 01 00 00 00 be 04 00 00 00 e9 4d f5 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 <48> 8b 0c 24 eb 39 66 66 90 48 b8 00 00 00 00 00 00 00 ff 48 39 f8 [ 1131.859652] RSP: 0018:ffff88800f11fae8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 1131.859652] RAX: ffffea00001242c8 RBX: ffffffff8490b020 RCX: ffffffff816ee205 [ 1131.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: ffffea00001242c8 [ 1131.859652] RBP: 0000000000000001 R08: ffffed1014704706 R09: 0000000000000000 [ 1131.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffea00001242c0 [ 1131.859652] R13: 0000000000000001 R14: ffffffff8490b021 R15: ffff88800f1135b8 [ 1131.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1131.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1131.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1131.859652] Call Trace: [ 1131.859652] __check_object_size+0xf5/0x752 [ 1131.859652] ? __probe_kernel_write+0x90/0x120 [ 1131.859652] __probe_kernel_write+0xa0/0x120 [ 1131.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1131.859652] ftrace_write+0x22/0x60 [ 1131.859652] ftrace_replace_code+0x2fb/0x350 [ 1131.859652] ? ftrace_int3_handler+0x70/0x70 [ 1131.859652] ? wait_for_completion+0x260/0x260 [ 1131.859652] ftrace_modify_all_code+0x141/0x2b0 [ 1131.859652] arch_ftrace_update_code+0x22/0x40 [ 1131.859652] ftrace_run_update_code+0x2b/0xd0 [ 1131.859652] ftrace_startup_enable+0x3a/0x70 [ 1131.859652] ftrace_startup+0x162/0x200 [ 1131.859652] register_ftrace_graph+0x658/0x6b0 [ 1131.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1131.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1131.859652] ? find_next_bit+0xba/0xd0 [ 1131.859652] run_tracer_selftest+0x285/0x382 [ 1131.859652] ? init_graph_tracefs+0x49/0x49 [ 1131.859652] register_tracer+0x290/0x3f8 [ 1131.859652] init_graph_trace+0xac/0xb4 [ 1131.859652] do_one_initcall+0x101/0x64a [ 1131.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1131.859652] ? __lock_is_held+0x38/0xd0 [ 1131.859652] ? check_flags+0x250/0x250 [ 1131.859652] kernel_init_freeable+0x4a6/0x58c [ 1131.859652] ? rest_init+0x44d/0x44d [ 1131.859652] kernel_init+0x11/0x1e3 [ 1131.859652] ? rest_init+0x44d/0x44d [ 1131.859652] ret_from_fork+0x3a/0x50 [ 1159.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 1159.859652] Modules linked in: [ 1159.859652] irq event stamp: 19782276 [ 1159.859652] hardirqs last enabled at (19782275): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1159.859652] hardirqs last disabled at (19782276): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1159.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1159.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1159.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1159.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1159.859652] RIP: 0010:__asan_load4+0x0/0x90 [ 1159.859652] Code: 00 e9 94 f6 ff ff 48 ba 00 00 00 00 00 fc ff df 48 89 fe 48 c1 ee 03 80 3c 16 00 75 da 48 c1 e8 03 80 3c 10 00 75 c9 c3 66 90 <48> 8b 0c 24 eb 39 66 66 90 48 b8 00 00 00 00 00 00 00 ff 48 39 f8 [ 1159.859652] RSP: 0018:ffff88800f11fa18 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 1159.859652] RAX: 0000000000000000 RBX: ffff88800f111000 RCX: ffffffff8112c5cd [ 1159.859652] RDX: dffffc0000000000 RSI: ffffffff8112c5c1 RDI: ffff88800f11352c [ 1159.859652] RBP: 0000000000000001 R08: ffff88800f111000 R09: 0000000000000000 [ 1159.859652] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff11001e23f44 [ 1159.859652] R13: ffffffff81000000 R14: ffffffff8490b021 R15: ffffffff8490b020 [ 1159.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1159.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1159.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1159.859652] Call Trace: [ 1159.859652] ftrace_return_to_handler+0x7e/0x2f0 [ 1159.859652] ? function_graph_enter+0x370/0x370 [ 1159.859652] ? 0xffffffff81000000 [ 1159.859652] ? __phys_addr_symbol+0x23/0x60 [ 1159.859652] ? 0xffffffff81000000 [ 1159.859652] return_to_handler+0x15/0x36 [ 1159.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1159.859652] ? __check_object_size+0x2b3/0x752 [ 1159.859652] ? __probe_kernel_write+0xa0/0x120 [ 1159.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1159.859652] ? ftrace_write+0x22/0x60 [ 1159.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1159.859652] ? ftrace_int3_handler+0x70/0x70 [ 1159.859652] ? wait_for_completion+0x260/0x260 [ 1159.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1159.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1159.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1159.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1159.859652] ? ftrace_startup+0x162/0x200 [ 1159.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1159.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1159.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1159.859652] ? find_next_bit+0xba/0xd0 [ 1159.859652] ? run_tracer_selftest+0x285/0x382 [ 1159.859652] ? init_graph_tracefs+0x49/0x49 [ 1159.859652] ? register_tracer+0x290/0x3f8 [ 1159.859652] ? init_graph_trace+0xac/0xb4 [ 1159.859652] ? do_one_initcall+0x101/0x64a [ 1159.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1159.859652] ? __lock_is_held+0x38/0xd0 [ 1159.859652] ? check_flags+0x250/0x250 [ 1159.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1159.859652] ? rest_init+0x44d/0x44d [ 1159.859652] ? kernel_init+0x11/0x1e3 [ 1159.859652] ? rest_init+0x44d/0x44d [ 1159.859652] ? ret_from_fork+0x3a/0x50 [ 1182.587652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1182.587652] rcu: (detected by 0, t=221057 jiffies, g=-1115, q=2) [ 1182.587652] rcu: All QSes seen, last rcu_sched kthread activity 221057 (4295182405-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1182.587652] swapper/0 R running task 28008 1 0 0x80000008 [ 1182.587652] Call Trace: [ 1182.587652] [ 1182.587652] ? ftrace_graph_caller+0xa0/0xa0 [ 1182.587652] sched_show_task+0x28f/0x310 [ 1182.587652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 1182.587652] ? ftrace_graph_caller+0xa0/0xa0 [ 1182.587652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 1182.587652] ? ftrace_graph_caller+0xa0/0xa0 [ 1182.587652] update_process_times+0x2d/0x70 [ 1182.587652] ? ftrace_graph_caller+0xa0/0xa0 [ 1182.587652] tick_periodic+0x5c/0x110 [ 1182.587652] tick_handle_periodic+0x30/0xd0 [ 1182.587652] smp_apic_timer_interrupt+0xb7/0x360 [ 1182.587652] apic_timer_interrupt+0xf/0x20 [ 1182.587652] [ 1182.587652] RIP: 0010:ftrace_check_record+0x1c1/0x330 [ 1182.587652] Code: 13 01 00 00 48 81 c2 00 00 00 20 48 83 05 9e 7b 20 04 01 48 09 d0 48 83 05 a3 7b 20 04 01 48 83 05 a3 7b 20 04 01 48 89 43 08 c1 00 00 00 10 74 39 48 8b 43 08 48 83 05 a3 7b 20 04 01 a9 00 [ 1182.587652] RSP: 0018:ffff88800f11fb98 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1182.587652] RAX: 0000000010000001 RBX: ffff88800fd159c0 RCX: 0000000090000000 [ 1182.587652] RDX: 0000000080000000 RSI: 0000000090000001 RDI: 0000000000000000 [ 1182.587652] RBP: 0000000000000001 R08: 0000000090000000 R09: 0000000000000000 [ 1182.587652] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 1182.587652] R13: 0000000000000000 R14: ffffffff82601ac0 R15: ffffffff855c3cc0 [ 1182.587652] ? ftrace_regs_caller_end+0x14/0x14 [ 1182.587652] ? ftrace_check_record+0x27/0x330 [ 1182.587652] ftrace_update_record+0x12/0x20 [ 1182.587652] ftrace_replace_code+0x2ab/0x350 [ 1182.587652] ? ftrace_int3_handler+0x70/0x70 [ 1182.587652] ? wait_for_completion+0x260/0x260 [ 1182.587652] ftrace_modify_all_code+0x141/0x2b0 [ 1182.587652] arch_ftrace_update_code+0x22/0x40 [ 1182.587652] ftrace_run_update_code+0x2b/0xd0 [ 1182.587652] ftrace_startup_enable+0x3a/0x70 [ 1182.587652] ftrace_startup+0x162/0x200 [ 1182.587652] register_ftrace_graph+0x658/0x6b0 [ 1182.587652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1182.587652] ? trace_selftest_startup_function+0x91f/0x91f [ 1182.587652] ? find_next_bit+0xba/0xd0 [ 1182.587652] run_tracer_selftest+0x285/0x382 [ 1182.587652] ? init_graph_tracefs+0x49/0x49 [ 1182.587652] register_tracer+0x290/0x3f8 [ 1182.587652] init_graph_trace+0xac/0xb4 [ 1182.587652] do_one_initcall+0x101/0x64a [ 1182.587652] ? perf_trace_initcall_level+0x280/0x280 [ 1182.587652] ? __lock_is_held+0x38/0xd0 [ 1182.587652] ? check_flags+0x250/0x250 [ 1182.587652] kernel_init_freeable+0x4a6/0x58c [ 1182.587652] ? rest_init+0x44d/0x44d [ 1182.587652] kernel_init+0x11/0x1e3 [ 1182.587652] ? rest_init+0x44d/0x44d [ 1182.587652] ret_from_fork+0x3a/0x50 [ 1182.587652] rcu: rcu_sched kthread starved for 221057 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 1182.587652] rcu: RCU grace-period kthread stack dump: [ 1182.587652] rcu_sched R running task 30600 10 2 0x80000000 [ 1182.587652] Call Trace: [ 1182.587652] ? __schedule+0x6af/0x1160 [ 1182.587652] ? firmware_map_remove+0x115/0x115 [ 1182.587652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1182.587652] schedule+0x46/0xc0 [ 1182.587652] schedule_timeout+0x476/0xd00 [ 1182.587652] ? mark_held_locks+0x23/0xb0 [ 1182.587652] ? usleep_range+0x120/0x120 [ 1182.587652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1182.587652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1182.587652] ? trace_hardirqs_on+0x33/0x270 [ 1182.587652] ? __next_timer_interrupt+0x190/0x190 [ 1182.587652] ? prepare_to_swait_exclusive+0x110/0x110 [ 1182.587652] rcu_gp_kthread+0x8e8/0x14b0 [ 1182.587652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1182.587652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1182.587652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1182.587652] ? trace_hardirqs_on+0x33/0x270 [ 1182.587652] ? __kthread_parkme+0xdb/0x100 [ 1182.587652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1182.587652] kthread+0x202/0x230 [ 1182.587652] ? kthread_unpark+0xf0/0xf0 [ 1182.587652] ret_from_fork+0x3a/0x50 [ 1207.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1207.859652] Modules linked in: [ 1207.859652] irq event stamp: 19806282 [ 1207.859652] hardirqs last enabled at (19806281): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1207.859652] hardirqs last disabled at (19806282): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1207.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1207.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1207.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1207.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1207.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 1207.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 1207.859652] RSP: 0018:ffff88800f11faa0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 1207.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 1207.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 1207.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 1207.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 1207.859652] R13: ffff88800f11faf0 R14: 0000000000000202 R15: ffff8880a38b2588 [ 1207.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1207.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1207.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1207.859652] Call Trace: [ 1207.859652] ? ftrace_write+0x3d/0x60 [ 1207.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 1207.859652] ? function_graph_enter+0x370/0x370 [ 1207.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1207.859652] ? ftrace_replace_code+0x2d0/0x350 [ 1207.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1207.859652] return_to_handler+0x15/0x36 [ 1207.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1207.859652] ? ftrace_write+0x3d/0x60 [ 1207.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1207.859652] ? ftrace_int3_handler+0x70/0x70 [ 1207.859652] ? wait_for_completion+0x260/0x260 [ 1207.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1207.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1207.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1207.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1207.859652] ? ftrace_startup+0x162/0x200 [ 1207.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1207.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1207.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1207.859652] ? find_next_bit+0xba/0xd0 [ 1207.859652] ? run_tracer_selftest+0x285/0x382 [ 1207.859652] ? init_graph_tracefs+0x49/0x49 [ 1207.859652] ? register_tracer+0x290/0x3f8 [ 1207.859652] ? init_graph_trace+0xac/0xb4 [ 1207.859652] ? do_one_initcall+0x101/0x64a [ 1207.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1207.859652] ? __lock_is_held+0x38/0xd0 [ 1207.859652] ? check_flags+0x250/0x250 [ 1207.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1207.859652] ? rest_init+0x44d/0x44d [ 1207.859652] ? kernel_init+0x11/0x1e3 [ 1207.859652] ? rest_init+0x44d/0x44d [ 1207.859652] ? ret_from_fork+0x3a/0x50 [ 1235.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1235.859652] Modules linked in: [ 1235.859652] irq event stamp: 19820288 [ 1235.859652] hardirqs last enabled at (19820287): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1235.859652] hardirqs last disabled at (19820288): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1235.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1235.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1235.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1235.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1235.859652] RIP: 0010:ftrace_graph_is_dead+0x0/0x30 [ 1235.859652] Code: 41 5c 41 5d 41 5e 41 5f c3 48 83 05 11 36 1d 04 01 48 83 c4 28 5b 5d 41 5c 41 5d 41 5e 41 5f c3 66 2e 0f 1f 84 00 00 00 00 00 <48> 83 ec 08 0f b6 05 05 3d 1d 04 48 83 05 7d 31 1d 04 01 3c 01 0f [ 1235.859652] RSP: 0018:ffff88800f11f9f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 1235.859652] RAX: ffff88800f111000 RBX: ffff88800f11fae8 RCX: ffffffff816ee1e0 [ 1235.859652] RDX: 0000000000000000 RSI: ffff88800f11fae8 RDI: ffffffff8112c5f0 [ 1235.859652] RBP: ffff88800f11fa28 R08: ffff88800f111000 R09: 0000000000000000 [ 1235.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8112c5f0 [ 1235.859652] R13: 0000000000000000 R14: ffffffff8490b021 R15: ffff88800f1135b8 [ 1235.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1235.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1235.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1235.859652] Call Trace: [ 1235.859652] prepare_ftrace_return+0x20/0xa0 [ 1235.859652] ftrace_graph_caller+0x62/0xa0 [ 1235.859652] ? __phys_addr+0x120/0x120 [ 1235.859652] ? __virt_addr_valid+0x10d/0x1df [ 1235.859652] ? __check_object_size+0xb0/0x752 [ 1235.859652] ? __check_object_size+0xbe/0x752 [ 1235.859652] ? __phys_addr+0x5/0x120 [ 1235.859652] ? return_to_handler+0x15/0x36 [ 1235.859652] __phys_addr+0x5/0x120 [ 1235.859652] __check_object_size+0xc6/0x752 [ 1235.859652] ? __probe_kernel_write+0x90/0x120 [ 1235.859652] __probe_kernel_write+0xa0/0x120 [ 1235.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1235.859652] ftrace_write+0x22/0x60 [ 1235.859652] ftrace_replace_code+0x2fb/0x350 [ 1235.859652] ? ftrace_int3_handler+0x70/0x70 [ 1235.859652] ? wait_for_completion+0x260/0x260 [ 1235.859652] ftrace_modify_all_code+0x141/0x2b0 [ 1235.859652] arch_ftrace_update_code+0x22/0x40 [ 1235.859652] ftrace_run_update_code+0x2b/0xd0 [ 1235.859652] ftrace_startup_enable+0x3a/0x70 [ 1235.859652] ftrace_startup+0x162/0x200 [ 1235.859652] register_ftrace_graph+0x658/0x6b0 [ 1235.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1235.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1235.859652] ? find_next_bit+0xba/0xd0 [ 1235.859652] run_tracer_selftest+0x285/0x382 [ 1235.859652] ? init_graph_tracefs+0x49/0x49 [ 1235.859652] register_tracer+0x290/0x3f8 [ 1235.859652] init_graph_trace+0xac/0xb4 [ 1235.859652] do_one_initcall+0x101/0x64a [ 1235.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1235.859652] ? __lock_is_held+0x38/0xd0 [ 1235.859652] ? check_flags+0x250/0x250 [ 1235.859652] kernel_init_freeable+0x4a6/0x58c [ 1235.859652] ? rest_init+0x44d/0x44d [ 1235.859652] kernel_init+0x11/0x1e3 [ 1235.859652] ? rest_init+0x44d/0x44d [ 1235.859652] ret_from_fork+0x3a/0x50 [ 1260.607652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1260.607652] rcu: (detected by 0, t=240562 jiffies, g=-1115, q=2) [ 1260.607652] rcu: All QSes seen, last rcu_sched kthread activity 240562 (4295201910-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1260.607652] swapper/0 R running task 28008 1 0 0x80000008 [ 1260.607652] Call Trace: [ 1260.607652] [ 1260.607652] ? ftrace_graph_caller+0xa0/0xa0 [ 1260.607652] sched_show_task+0x28f/0x310 [ 1260.607652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 1260.607652] ? ftrace_graph_caller+0xa0/0xa0 [ 1260.607652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 1260.607652] ? ftrace_graph_caller+0xa0/0xa0 [ 1260.607652] update_process_times+0x2d/0x70 [ 1260.607652] ? ftrace_graph_caller+0xa0/0xa0 [ 1260.607652] tick_periodic+0x5c/0x110 [ 1260.607652] tick_handle_periodic+0x30/0xd0 [ 1260.607652] smp_apic_timer_interrupt+0xb7/0x360 [ 1260.607652] apic_timer_interrupt+0xf/0x20 [ 1260.607652] [ 1260.607652] RIP: 0010:__check_object_size+0x283/0x752 [ 1260.607652] Code: ff 4d 39 ee 0f 87 14 06 00 00 e8 78 65 c9 ff 48 c7 c7 00 00 00 81 e8 ec e1 a3 ff 48 c7 c7 b8 c6 12 83 49 89 c4 e8 3d c2 f8 ff <4c> 03 25 fe e2 a3 01 48 c7 c7 00 00 00 81 4c 89 e6 e8 57 66 c9 ff [ 1260.607652] RSP: 0018:ffff88800f11faf0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1260.607652] RAX: 0000000000000000 RBX: ffffffff8490b020 RCX: ffffffff816ee3b3 [ 1260.607652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: ffffffff8312c6b8 [ 1260.607652] RBP: 0000000000000001 R08: ffffed1014704706 R09: 0000000000000000 [ 1260.607652] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000001000000 [ 1260.607652] R13: ffffffff81000000 R14: ffffffff8490b021 R15: ffffffff8490b020 [ 1260.607652] ? 0xffffffff81000000 [ 1260.607652] ? __check_object_size+0x283/0x752 [ 1260.607652] __probe_kernel_write+0xa0/0x120 [ 1260.607652] ? ftrace_regs_caller_end+0x14/0x14 [ 1260.607652] ftrace_write+0x22/0x60 [ 1260.607652] ftrace_replace_code+0x2fb/0x350 [ 1260.607652] ? ftrace_int3_handler+0x70/0x70 [ 1260.607652] ? wait_for_completion+0x260/0x260 [ 1260.607652] ftrace_modify_all_code+0x141/0x2b0 [ 1260.607652] arch_ftrace_update_code+0x22/0x40 [ 1260.607652] ftrace_run_update_code+0x2b/0xd0 [ 1260.607652] ftrace_startup_enable+0x3a/0x70 [ 1260.607652] ftrace_startup+0x162/0x200 [ 1260.607652] register_ftrace_graph+0x658/0x6b0 [ 1260.607652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1260.607652] ? trace_selftest_startup_function+0x91f/0x91f [ 1260.607652] ? find_next_bit+0xba/0xd0 [ 1260.607652] run_tracer_selftest+0x285/0x382 [ 1260.607652] ? init_graph_tracefs+0x49/0x49 [ 1260.607652] register_tracer+0x290/0x3f8 [ 1260.607652] init_graph_trace+0xac/0xb4 [ 1260.607652] do_one_initcall+0x101/0x64a [ 1260.607652] ? perf_trace_initcall_level+0x280/0x280 [ 1260.607652] ? __lock_is_held+0x38/0xd0 [ 1260.607652] ? check_flags+0x250/0x250 [ 1260.607652] kernel_init_freeable+0x4a6/0x58c [ 1260.607652] ? rest_init+0x44d/0x44d [ 1260.607652] kernel_init+0x11/0x1e3 [ 1260.607652] ? rest_init+0x44d/0x44d [ 1260.607652] ret_from_fork+0x3a/0x50 [ 1260.607652] rcu: rcu_sched kthread starved for 240562 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 1260.607652] rcu: RCU grace-period kthread stack dump: [ 1260.607652] rcu_sched R running task 30600 10 2 0x80000000 [ 1260.607652] Call Trace: [ 1260.607652] ? __schedule+0x6af/0x1160 [ 1260.607652] ? firmware_map_remove+0x115/0x115 [ 1260.607652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1260.607652] schedule+0x46/0xc0 [ 1260.607652] schedule_timeout+0x476/0xd00 [ 1260.607652] ? mark_held_locks+0x23/0xb0 [ 1260.607652] ? usleep_range+0x120/0x120 [ 1260.607652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1260.607652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1260.607652] ? trace_hardirqs_on+0x33/0x270 [ 1260.607652] ? __next_timer_interrupt+0x190/0x190 [ 1260.607652] ? prepare_to_swait_exclusive+0x110/0x110 [ 1260.607652] rcu_gp_kthread+0x8e8/0x14b0 [ 1260.607652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1260.607652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1260.607652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1260.607652] ? trace_hardirqs_on+0x33/0x270 [ 1260.607652] ? __kthread_parkme+0xdb/0x100 [ 1260.607652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1260.607652] kthread+0x202/0x230 [ 1260.607652] ? kthread_unpark+0xf0/0xf0 [ 1260.607652] ret_from_fork+0x3a/0x50 [ 1287.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1287.859652] Modules linked in: [ 1287.859652] irq event stamp: 19846308 [ 1287.859652] hardirqs last enabled at (19846307): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1287.859652] hardirqs last disabled at (19846308): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1287.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1287.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1287.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1287.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1287.859652] RIP: 0010:trace_clock_local+0x1c/0x40 [ 1287.859652] Code: c8 41 01 d0 41 01 f0 41 8d 04 38 c3 90 90 48 83 05 18 4e 20 04 01 65 ff 05 41 c8 c6 7e 48 83 05 11 4e 20 04 01 e8 44 a9 cc ff <48> 83 05 0c 4e 20 04 01 48 83 05 0c 4e 20 04 01 65 ff 0d 1d c8 c6 [ 1287.859652] RSP: 0018:ffff88800f11f940 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1287.859652] RAX: 00000152b18d5f60 RBX: ffff88800f111000 RCX: 000000000000001f [ 1287.859652] RDX: 00000000000000a9 RSI: 000000002497beeb RDI: 0000000000000002 [ 1287.859652] RBP: ffff88800f11fa28 R08: 0000000000000002 R09: ffffed1001e226a9 [ 1287.859652] R10: ffffed1001e226a9 R11: ffff88800f11354f R12: ffff88800f113538 [ 1287.859652] R13: 1ffff11001e23f2d R14: ffffffff8112c710 R15: ffff88800f11352c [ 1287.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1287.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1287.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1287.859652] Call Trace: [ 1287.859652] function_graph_enter+0x135/0x370 [ 1287.859652] ? __check_object_size+0xa4/0x752 [ 1287.859652] ? mark_lock+0x6e/0xbd0 [ 1287.859652] ? ftrace_graph_stop+0x10/0x10 [ 1287.859652] ? __phys_addr+0x120/0x120 [ 1287.859652] ? __phys_addr+0x120/0x120 [ 1287.859652] ? __check_object_size+0xa4/0x752 [ 1287.859652] prepare_ftrace_return+0x7b/0xa0 [ 1287.859652] ftrace_graph_caller+0x62/0xa0 [ 1287.859652] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1287.859652] ? __check_object_size+0x8d/0x752 [ 1287.859652] ? __check_object_size+0x9c/0x752 [ 1287.859652] ? __virt_addr_valid+0x5/0x1df [ 1287.859652] __virt_addr_valid+0x5/0x1df [ 1287.859652] ftrace_graph_caller+0xa0/0xa0 [ 1287.859652] ? __probe_kernel_write+0x90/0x120 [ 1287.859652] ? __probe_kernel_write+0xa0/0x120 [ 1287.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1287.859652] ? ftrace_write+0x22/0x60 [ 1287.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1287.859652] ? ftrace_int3_handler+0x70/0x70 [ 1287.859652] ? wait_for_completion+0x260/0x260 [ 1287.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1287.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1287.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1287.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1287.859652] ? ftrace_startup+0x162/0x200 [ 1287.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1287.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1287.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1287.859652] ? find_next_bit+0xba/0xd0 [ 1287.859652] ? run_tracer_selftest+0x285/0x382 [ 1287.859652] ? init_graph_tracefs+0x49/0x49 [ 1287.859652] ? register_tracer+0x290/0x3f8 [ 1287.859652] ? init_graph_trace+0xac/0xb4 [ 1287.859652] ? do_one_initcall+0x101/0x64a [ 1287.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1287.859652] ? __lock_is_held+0x38/0xd0 [ 1287.859652] ? check_flags+0x250/0x250 [ 1287.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1287.859652] ? rest_init+0x44d/0x44d [ 1287.859652] ? kernel_init+0x11/0x1e3 [ 1287.859652] ? rest_init+0x44d/0x44d [ 1287.859652] ? ret_from_fork+0x3a/0x50 [ 1315.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1315.859652] Modules linked in: [ 1315.859652] irq event stamp: 19860310 [ 1315.859652] hardirqs last enabled at (19860309): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1315.859652] hardirqs last disabled at (19860310): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1315.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1315.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1315.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1315.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1315.859652] RIP: 0010:ftrace_return_to_handler+0x165/0x2f0 [ 1315.859652] Code: e8 70 da 25 00 48 8b 45 10 48 8d ab 48 25 00 00 be 04 00 00 00 48 89 ef 48 83 05 55 37 1d 04 01 48 89 44 24 30 e8 4b b2 25 00 <48> 89 ef 48 83 05 48 37 1d 04 01 48 83 05 48 37 1d 04 01 e8 03 d9 [ 1315.859652] RSP: 0018:ffff88800f11fa20 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1315.859652] RAX: ffffed1001e226aa RBX: ffff88800f111000 RCX: ffffffff8141cba5 [ 1315.859652] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88800f113548 [ 1315.859652] RBP: ffff88800f113548 R08: ffffed1001e226aa R09: ffffed1001e226a9 [ 1315.859652] R10: ffffed1001e226a9 R11: ffff88800f11354b R12: 1ffff11001e23f44 [ 1315.859652] R13: ffffffff816ee1d4 R14: ffff88800f113538 R15: ffff8880a38b2588 [ 1315.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1315.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1315.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1315.859652] Call Trace: [ 1315.859652] ? function_graph_enter+0x370/0x370 [ 1315.859652] ? __phys_addr+0x120/0x120 [ 1315.859652] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1315.859652] ? __check_object_size+0x8d/0x752 [ 1315.859652] return_to_handler+0x15/0x36 [ 1315.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1315.859652] ? __check_object_size+0xa4/0x752 [ 1315.859652] ? __probe_kernel_write+0x90/0x120 [ 1315.859652] ? __probe_kernel_write+0xa0/0x120 [ 1315.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1315.859652] ? ftrace_write+0x22/0x60 [ 1315.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1315.859652] ? ftrace_int3_handler+0x70/0x70 [ 1315.859652] ? wait_for_completion+0x260/0x260 [ 1315.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1315.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1315.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1315.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1315.859652] ? ftrace_startup+0x162/0x200 [ 1315.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1315.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1315.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1315.859652] ? find_next_bit+0xba/0xd0 [ 1315.859652] ? run_tracer_selftest+0x285/0x382 [ 1315.859652] ? init_graph_tracefs+0x49/0x49 [ 1315.859652] ? register_tracer+0x290/0x3f8 [ 1315.859652] ? init_graph_trace+0xac/0xb4 [ 1315.859652] ? do_one_initcall+0x101/0x64a [ 1315.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1315.859652] ? __lock_is_held+0x38/0xd0 [ 1315.859652] ? check_flags+0x250/0x250 [ 1315.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1315.859652] ? rest_init+0x44d/0x44d [ 1315.859652] ? kernel_init+0x11/0x1e3 [ 1315.859652] ? rest_init+0x44d/0x44d [ 1315.859652] ? ret_from_fork+0x3a/0x50 [ 1338.627652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1338.627652] rcu: (detected by 0, t=260067 jiffies, g=-1115, q=2) [ 1338.627652] rcu: All QSes seen, last rcu_sched kthread activity 260067 (4295221415-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1338.627652] swapper/0 R running task 28008 1 0 0x80000008 [ 1338.627652] Call Trace: [ 1338.627652] [ 1338.627652] ? ftrace_graph_caller+0xa0/0xa0 [ 1338.627652] sched_show_task+0x28f/0x310 [ 1338.627652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 1338.627652] ? ftrace_graph_caller+0xa0/0xa0 [ 1338.627652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 1338.627652] ? ftrace_graph_caller+0xa0/0xa0 [ 1338.627652] update_process_times+0x2d/0x70 [ 1338.627652] ? ftrace_graph_caller+0xa0/0xa0 [ 1338.627652] tick_periodic+0x5c/0x110 [ 1338.627652] tick_handle_periodic+0x30/0xd0 [ 1338.627652] smp_apic_timer_interrupt+0xb7/0x360 [ 1338.627652] apic_timer_interrupt+0xf/0x20 [ 1338.627652] [ 1338.627652] RIP: 0010:function_graph_enter+0xee/0x370 [ 1338.627652] Code: 00 83 e3 01 0f 85 eb 01 00 00 65 48 8b 1c 25 00 ff 01 00 4c 8d a3 38 25 00 00 48 83 05 fa 39 1d 04 01 4c 89 e7 e8 32 de 25 00 <48> 83 bb 38 25 00 00 00 0f 84 5e 02 00 00 48 83 05 ec 39 1d 04 01 [ 1338.627652] RSP: 0018:ffff88800f11f948 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1338.627652] RAX: 0000000000000000 RBX: ffff88800f111000 RCX: ffffffff8141c7be [ 1338.627652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: ffff88800f113538 [ 1338.627652] RBP: ffff88800f11fa28 R08: ffffed1001e226aa R09: ffffed1001e226a9 [ 1338.627652] R10: ffffed1001e226a9 R11: ffff88800f11354f R12: ffff88800f113538 [ 1338.627652] R13: 1ffff11001e23f2d R14: ffffffff8112c590 R15: ffff88800f11354c [ 1338.627652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1338.627652] ? function_graph_enter+0xee/0x370 [ 1338.627652] ? function_graph_enter+0xee/0x370 [ 1338.627652] ? __check_object_size+0x274/0x752 [ 1338.627652] ? ftrace_graph_stop+0x10/0x10 [ 1338.627652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1338.627652] ? retint_kernel+0x10/0x10 [ 1338.627652] ? trace_hardirqs_on_caller+0x35/0x270 [ 1338.627652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1338.627652] ? __check_object_size+0x274/0x752 [ 1338.627652] prepare_ftrace_return+0x7b/0xa0 [ 1338.627652] ? 0xffffffff81000000 [ 1338.627652] ftrace_graph_caller+0x62/0xa0 [ 1338.627652] ? __check_object_size+0x245/0x752 [ 1338.627652] ? __check_object_size+0x268/0x752 [ 1338.627652] ? 0xffffffff81000000 [ 1338.627652] ? __phys_addr_symbol+0x5/0x60 [ 1338.627652] __phys_addr_symbol+0x5/0x60 [ 1338.627652] ftrace_graph_caller+0xa0/0xa0 [ 1338.627652] ? __probe_kernel_write+0xa0/0x120 [ 1338.627652] ? ftrace_regs_caller_end+0x14/0x14 [ 1338.627652] ? ftrace_write+0x22/0x60 [ 1338.627652] ? ftrace_replace_code+0x2fb/0x350 [ 1338.627652] ? ftrace_int3_handler+0x70/0x70 [ 1338.627652] ? wait_for_completion+0x260/0x260 [ 1338.627652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1338.627652] ? arch_ftrace_update_code+0x22/0x40 [ 1338.627652] ? ftrace_run_update_code+0x2b/0xd0 [ 1338.627652] ? ftrace_startup_enable+0x3a/0x70 [ 1338.627652] ? ftrace_startup+0x162/0x200 [ 1338.627652] ? register_ftrace_graph+0x658/0x6b0 [ 1338.627652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1338.627652] ? trace_selftest_startup_function+0x91f/0x91f [ 1338.627652] ? find_next_bit+0xba/0xd0 [ 1338.627652] ? run_tracer_selftest+0x285/0x382 [ 1338.627652] ? init_graph_tracefs+0x49/0x49 [ 1338.627652] ? register_tracer+0x290/0x3f8 [ 1338.627652] ? init_graph_trace+0xac/0xb4 [ 1338.627652] ? do_one_initcall+0x101/0x64a [ 1338.627652] ? perf_trace_initcall_level+0x280/0x280 [ 1338.627652] ? __lock_is_held+0x38/0xd0 [ 1338.627652] ? check_flags+0x250/0x250 [ 1338.627652] ? kernel_init_freeable+0x4a6/0x58c [ 1338.627652] ? rest_init+0x44d/0x44d [ 1338.627652] ? kernel_init+0x11/0x1e3 [ 1338.627652] ? rest_init+0x44d/0x44d [ 1338.627652] ? ret_from_fork+0x3a/0x50 [ 1338.627652] rcu: rcu_sched kthread starved for 260067 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 1338.627652] rcu: RCU grace-period kthread stack dump: [ 1338.627652] rcu_sched R running task 30600 10 2 0x80000000 [ 1338.627652] Call Trace: [ 1338.627652] ? __schedule+0x6af/0x1160 [ 1338.627652] ? firmware_map_remove+0x115/0x115 [ 1338.627652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1338.627652] schedule+0x46/0xc0 [ 1338.627652] schedule_timeout+0x476/0xd00 [ 1338.627652] ? mark_held_locks+0x23/0xb0 [ 1338.627652] ? usleep_range+0x120/0x120 [ 1338.627652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1338.627652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1338.627652] ? trace_hardirqs_on+0x33/0x270 [ 1338.627652] ? __next_timer_interrupt+0x190/0x190 [ 1338.627652] ? prepare_to_swait_exclusive+0x110/0x110 [ 1338.627652] rcu_gp_kthread+0x8e8/0x14b0 [ 1338.627652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1338.627652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1338.627652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1338.627652] ? trace_hardirqs_on+0x33/0x270 [ 1338.627652] ? __kthread_parkme+0xdb/0x100 [ 1338.627652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1338.627652] kthread+0x202/0x230 [ 1338.627652] ? kthread_unpark+0xf0/0xf0 [ 1338.627652] ret_from_fork+0x3a/0x50 [ 1363.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 1363.859652] Modules linked in: [ 1363.859652] irq event stamp: 19884348 [ 1363.859652] hardirqs last enabled at (19884347): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1363.859652] hardirqs last disabled at (19884348): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1363.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1363.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1363.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1363.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1363.859652] RIP: 0010:__asan_load8+0x3e/0xa0 [ 1363.859652] Code: 39 f8 77 48 48 8d 47 07 48 89 c2 83 e2 07 48 83 fa 07 75 44 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 0f b6 04 10 84 c0 75 19 48 b8 00 00 00 00 00 80 ff ff eb c8 48 b8 00 00 00 00 00 00 00 [ 1363.859652] RSP: 0018:ffff88800f11fa18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1363.859652] RAX: 0000000000000000 RBX: ffff88800f111000 RCX: ffffffff8141cb10 [ 1363.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: ffff8880a38b2588 [ 1363.859652] RBP: 0000000000000000 R08: ffff88800f111000 R09: 0000000000000000 [ 1363.859652] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff11001e23f44 [ 1363.859652] R13: ffff8880a38b2588 R14: ffff88800f113538 R15: ffffffff8490b020 [ 1363.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1363.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1363.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1363.859652] Call Trace: [ 1363.859652] ftrace_return_to_handler+0xd0/0x2f0 [ 1363.859652] ? function_graph_enter+0x370/0x370 [ 1363.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1363.859652] ? __check_object_size+0x299/0x752 [ 1363.859652] ? 0xffffffff81000000 [ 1363.859652] return_to_handler+0x15/0x36 [ 1363.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1363.859652] ? __check_object_size+0x2b3/0x752 [ 1363.859652] ? __probe_kernel_write+0xa0/0x120 [ 1363.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1363.859652] ? ftrace_write+0x22/0x60 [ 1363.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1363.859652] ? ftrace_int3_handler+0x70/0x70 [ 1363.859652] ? wait_for_completion+0x260/0x260 [ 1363.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1363.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1363.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1363.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1363.859652] ? ftrace_startup+0x162/0x200 [ 1363.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1363.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1363.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1363.859652] ? find_next_bit+0xba/0xd0 [ 1363.859652] ? run_tracer_selftest+0x285/0x382 [ 1363.859652] ? init_graph_tracefs+0x49/0x49 [ 1363.859652] ? register_tracer+0x290/0x3f8 [ 1363.859652] ? init_graph_trace+0xac/0xb4 [ 1363.859652] ? do_one_initcall+0x101/0x64a [ 1363.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1363.859652] ? __lock_is_held+0x38/0xd0 [ 1363.859652] ? check_flags+0x250/0x250 [ 1363.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1363.859652] ? rest_init+0x44d/0x44d [ 1363.859652] ? kernel_init+0x11/0x1e3 [ 1363.859652] ? rest_init+0x44d/0x44d [ 1363.859652] ? ret_from_fork+0x3a/0x50 [ 1391.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 1391.859652] Modules linked in: [ 1391.859652] irq event stamp: 19898350 [ 1391.859652] hardirqs last enabled at (19898349): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1391.859652] hardirqs last disabled at (19898350): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1391.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1391.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1391.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1391.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1391.859652] RIP: 0010:function_graph_enter+0x135/0x370 [ 1391.859652] Code: 48 83 05 e5 39 1d 04 01 4c 89 ff e8 d5 dc 25 00 83 bb 2c 25 00 00 31 0f 84 fd 01 00 00 48 83 05 d8 39 1d 04 01 e8 3b 6e f9 ff <4c> 89 ff 48 83 05 e0 39 1d 04 01 48 89 44 24 18 48 83 05 db 39 1d [ 1391.859652] RSP: 0018:ffff88800f11f9f8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1391.859652] RAX: 0000016c457bdadc RBX: ffff88800f111000 RCX: 000000000000001f [ 1391.859652] RDX: 00000000000000b6 RSI: 000000002497beeb RDI: 0000000000000002 [ 1391.859652] RBP: ffff88800f11fad8 R08: 0000000000000002 R09: ffffed1001e226a9 [ 1391.859652] R10: ffffed1001e226a9 R11: ffff88800f11354f R12: ffff88800f113538 [ 1391.859652] R13: 1ffff11001e23f43 R14: ffffffff8112c590 R15: ffff88800f11352c [ 1391.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1391.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1391.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1391.859652] Call Trace: [ 1391.859652] ? ftrace_write+0x3d/0x60 [ 1391.859652] ? ftrace_graph_stop+0x10/0x10 [ 1391.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1391.859652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1391.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1391.859652] ? ftrace_write+0x3d/0x60 [ 1391.859652] prepare_ftrace_return+0x7b/0xa0 [ 1391.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1391.859652] ftrace_graph_caller+0x62/0xa0 [ 1391.859652] ? smp_apic_timer_interrupt+0xf0/0x360 [ 1391.859652] ? retint_kernel+0x10/0x10 [ 1391.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1391.859652] ? ftrace_replace_code+0x2d0/0x350 [ 1391.859652] ? timer_list_show.cold.1+0x92/0x92 [ 1391.859652] ? ftrace_replace_code+0x2d0/0x350 [ 1391.859652] ? __phys_addr_symbol+0x5/0x60 [ 1391.859652] ? timer_list_show.cold.1+0x92/0x92 [ 1391.859652] ? ftrace_modify_code_direct+0x160/0x160 [ 1391.859652] __phys_addr_symbol+0x5/0x60 [ 1391.859652] ftrace_graph_caller+0xa0/0xa0 [ 1391.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1391.859652] ? ftrace_int3_handler+0x70/0x70 [ 1391.859652] ? wait_for_completion+0x260/0x260 [ 1391.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1391.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1391.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1391.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1391.859652] ? ftrace_startup+0x162/0x200 [ 1391.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1391.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1391.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1391.859652] ? find_next_bit+0xba/0xd0 [ 1391.859652] ? run_tracer_selftest+0x285/0x382 [ 1391.859652] ? init_graph_tracefs+0x49/0x49 [ 1391.859652] ? register_tracer+0x290/0x3f8 [ 1391.859652] ? init_graph_trace+0xac/0xb4 [ 1391.859652] ? do_one_initcall+0x101/0x64a [ 1391.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1391.859652] ? __lock_is_held+0x38/0xd0 [ 1391.859652] ? check_flags+0x250/0x250 [ 1391.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1391.859652] ? rest_init+0x44d/0x44d [ 1391.859652] ? kernel_init+0x11/0x1e3 [ 1391.859652] ? rest_init+0x44d/0x44d [ 1391.859652] ? ret_from_fork+0x3a/0x50 [ 1416.647652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1416.647652] rcu: (detected by 0, t=279572 jiffies, g=-1115, q=2) [ 1416.647652] rcu: All QSes seen, last rcu_sched kthread activity 279572 (4295240920-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1416.647652] swapper/0 R running task 28008 1 0 0x80000008 [ 1416.647652] Call Trace: [ 1416.647652] [ 1416.647652] ? ftrace_graph_caller+0xa0/0xa0 [ 1416.647652] sched_show_task+0x28f/0x310 [ 1416.647652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 1416.647652] ? ftrace_graph_caller+0xa0/0xa0 [ 1416.647652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 1416.647652] ? ftrace_graph_caller+0xa0/0xa0 [ 1416.647652] update_process_times+0x2d/0x70 [ 1416.647652] ? ftrace_graph_caller+0xa0/0xa0 [ 1416.647652] tick_periodic+0x5c/0x110 [ 1416.647652] tick_handle_periodic+0x30/0xd0 [ 1416.647652] smp_apic_timer_interrupt+0xb7/0x360 [ 1416.647652] apic_timer_interrupt+0xf/0x20 [ 1416.647652] [ 1416.647652] RIP: 0010:ftrace_return_to_handler+0x1dd/0x2f0 [ 1416.647652] Code: 48 83 05 25 37 1d 04 01 8d 50 ff 89 44 24 40 89 93 30 25 00 00 48 83 05 18 37 1d 04 01 48 83 05 70 2d 1d 04 01 e8 23 6a f9 ff <48> 83 05 6b 2d 1d 04 01 48 89 44 24 38 48 8d 7c 24 20 48 8b 05 ea [ 1416.647652] RSP: 0018:ffff88800f11fad0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1416.647652] RAX: 0000017197853261 RBX: ffff88800f111000 RCX: 000000000000001f [ 1416.647652] RDX: 00000000000000b8 RSI: 000000002497beeb RDI: 0000000000000002 [ 1416.647652] RBP: ffff88800f113548 R08: 0000000000000002 R09: ffffed1001e226a9 [ 1416.647652] R10: ffffed1001e226a9 R11: ffff88800f11354b R12: 1ffff11001e23f5a [ 1416.647652] R13: ffffffff810f0f9d R14: ffff88800f113538 R15: ffff8880a38b2588 [ 1416.647652] ? ftrace_write+0x3d/0x60 [ 1416.647652] ? function_graph_enter+0x370/0x370 [ 1416.647652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1416.647652] ? ftrace_regs_caller_end+0x14/0x14 [ 1416.647652] return_to_handler+0x15/0x36 [ 1416.647652] ? ftrace_replace_code+0x2fb/0x350 [ 1416.647652] ? ftrace_int3_handler+0x70/0x70 [ 1416.647652] ? wait_for_completion+0x260/0x260 [ 1416.647652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1416.647652] ? arch_ftrace_update_code+0x22/0x40 [ 1416.647652] ? ftrace_run_update_code+0x2b/0xd0 [ 1416.647652] ? ftrace_startup_enable+0x3a/0x70 [ 1416.647652] ? ftrace_startup+0x162/0x200 [ 1416.647652] ? register_ftrace_graph+0x658/0x6b0 [ 1416.647652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1416.647652] ? trace_selftest_startup_function+0x91f/0x91f [ 1416.647652] ? find_next_bit+0xba/0xd0 [ 1416.647652] ? run_tracer_selftest+0x285/0x382 [ 1416.647652] ? init_graph_tracefs+0x49/0x49 [ 1416.647652] ? register_tracer+0x290/0x3f8 [ 1416.647652] ? init_graph_trace+0xac/0xb4 [ 1416.647652] ? do_one_initcall+0x101/0x64a [ 1416.647652] ? perf_trace_initcall_level+0x280/0x280 [ 1416.647652] ? __lock_is_held+0x38/0xd0 [ 1416.647652] ? check_flags+0x250/0x250 [ 1416.647652] ? kernel_init_freeable+0x4a6/0x58c [ 1416.647652] ? rest_init+0x44d/0x44d [ 1416.647652] ? kernel_init+0x11/0x1e3 [ 1416.647652] ? rest_init+0x44d/0x44d [ 1416.647652] ? ret_from_fork+0x3a/0x50 [ 1416.647652] rcu: rcu_sched kthread starved for 279572 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 1416.647652] rcu: RCU grace-period kthread stack dump: [ 1416.647652] rcu_sched R running task 30600 10 2 0x80000000 [ 1416.647652] Call Trace: [ 1416.647652] ? __schedule+0x6af/0x1160 [ 1416.647652] ? firmware_map_remove+0x115/0x115 [ 1416.647652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1416.647652] schedule+0x46/0xc0 [ 1416.647652] schedule_timeout+0x476/0xd00 [ 1416.647652] ? mark_held_locks+0x23/0xb0 [ 1416.647652] ? usleep_range+0x120/0x120 [ 1416.647652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1416.647652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1416.647652] ? trace_hardirqs_on+0x33/0x270 [ 1416.647652] ? __next_timer_interrupt+0x190/0x190 [ 1416.647652] ? prepare_to_swait_exclusive+0x110/0x110 [ 1416.647652] rcu_gp_kthread+0x8e8/0x14b0 [ 1416.647652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1416.647652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1416.647652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1416.647652] ? trace_hardirqs_on+0x33/0x270 [ 1416.647652] ? __kthread_parkme+0xdb/0x100 [ 1416.647652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1416.647652] kthread+0x202/0x230 [ 1416.647652] ? kthread_unpark+0xf0/0xf0 [ 1416.647652] ret_from_fork+0x3a/0x50 [ 1443.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1443.859652] Modules linked in: [ 1443.859652] irq event stamp: 19924364 [ 1443.859652] hardirqs last enabled at (19924363): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1443.859652] hardirqs last disabled at (19924364): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1443.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1443.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1443.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1443.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1443.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 1443.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 1443.859652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 1443.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 1443.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 1443.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 1443.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 1443.859652] R13: ffff88800f11fa40 R14: 0000000000000202 R15: ffff8880a38b2588 [ 1443.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1443.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1443.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1443.859652] Call Trace: [ 1443.859652] ? __check_object_size+0xc6/0x752 [ 1443.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 1443.859652] ? function_graph_enter+0x370/0x370 [ 1443.859652] ? __phys_addr_symbol+0x60/0x60 [ 1443.859652] ? __check_object_size+0xb0/0x752 [ 1443.859652] return_to_handler+0x15/0x36 [ 1443.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1443.859652] ? __check_object_size+0xc6/0x752 [ 1443.859652] ? __probe_kernel_write+0x90/0x120 [ 1443.859652] ? __probe_kernel_write+0xa0/0x120 [ 1443.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1443.859652] ? ftrace_write+0x22/0x60 [ 1443.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1443.859652] ? ftrace_int3_handler+0x70/0x70 [ 1443.859652] ? wait_for_completion+0x260/0x260 [ 1443.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1443.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1443.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1443.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1443.859652] ? ftrace_startup+0x162/0x200 [ 1443.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1443.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1443.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1443.859652] ? find_next_bit+0xba/0xd0 [ 1443.859652] ? run_tracer_selftest+0x285/0x382 [ 1443.859652] ? init_graph_tracefs+0x49/0x49 [ 1443.859652] ? register_tracer+0x290/0x3f8 [ 1443.859652] ? init_graph_trace+0xac/0xb4 [ 1443.859652] ? do_one_initcall+0x101/0x64a [ 1443.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1443.859652] ? __lock_is_held+0x38/0xd0 [ 1443.859652] ? check_flags+0x250/0x250 [ 1443.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1443.859652] ? rest_init+0x44d/0x44d [ 1443.859652] ? kernel_init+0x11/0x1e3 [ 1443.859652] ? rest_init+0x44d/0x44d [ 1443.859652] ? ret_from_fork+0x3a/0x50 [ 1471.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1471.859652] Modules linked in: [ 1471.859652] irq event stamp: 19938374 [ 1471.859652] hardirqs last enabled at (19938373): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1471.859652] hardirqs last disabled at (19938374): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1471.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1471.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1471.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1471.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1471.859652] RIP: 0010:__asan_load8+0x0/0xa0 [ 1471.859652] Code: 30 84 c0 74 c3 38 d0 0f 9e c0 84 c0 74 ba ba 01 00 00 00 be 04 00 00 00 e9 4d f5 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 <48> 8b 0c 24 eb 39 66 66 90 48 b8 00 00 00 00 00 00 00 ff 48 39 f8 [ 1471.859652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 1471.859652] RAX: ffffffff810f0f9d RBX: ffff88800f111000 RCX: ffffffff8141c884 [ 1471.859652] RDX: ffff8880a38b2588 RSI: dffffc0000000000 RDI: ffff88800f113538 [ 1471.859652] RBP: 0000000000000000 R08: 0000000000000002 R09: ffffed1001e226a9 [ 1471.859652] R10: ffffed1001e226a9 R11: ffff88800f11354f R12: ffff88800f113538 [ 1471.859652] R13: 1ffff11001e23f43 R14: ffffffff8112c590 R15: ffff88800f11352c [ 1471.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1471.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1471.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1471.859652] Call Trace: [ 1471.859652] function_graph_enter+0x1d0/0x370 [ 1471.859652] ? ftrace_write+0x3d/0x60 [ 1471.859652] ? ftrace_graph_stop+0x10/0x10 [ 1471.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1471.859652] ? ftrace_replace_code+0x2d0/0x350 [ 1471.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1471.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1471.859652] ? ftrace_write+0x3d/0x60 [ 1471.859652] prepare_ftrace_return+0x7b/0xa0 [ 1471.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1471.859652] ftrace_graph_caller+0x62/0xa0 [ 1471.859652] ? __probe_kernel_write+0xf3/0x120 [ 1471.859652] ? ftrace_replace_code+0x2d0/0x350 [ 1471.859652] ? math_div+0x40/0x40 [ 1471.859652] ? __phys_addr_symbol+0x5/0x60 [ 1471.859652] ? math_div+0x40/0x40 [ 1471.859652] ? ftrace_get_addr_new+0x151/0x270 [ 1471.859652] __phys_addr_symbol+0x5/0x60 [ 1471.859652] ftrace_graph_caller+0xa0/0xa0 [ 1471.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1471.859652] ? ftrace_int3_handler+0x70/0x70 [ 1471.859652] ? wait_for_completion+0x260/0x260 [ 1471.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1471.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1471.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1471.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1471.859652] ? ftrace_startup+0x162/0x200 [ 1471.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1471.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1471.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1471.859652] ? find_next_bit+0xba/0xd0 [ 1471.859652] ? run_tracer_selftest+0x285/0x382 [ 1471.859652] ? init_graph_tracefs+0x49/0x49 [ 1471.859652] ? register_tracer+0x290/0x3f8 [ 1471.859652] ? init_graph_trace+0xac/0xb4 [ 1471.859652] ? do_one_initcall+0x101/0x64a [ 1471.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1471.859652] ? __lock_is_held+0x38/0xd0 [ 1471.859652] ? check_flags+0x250/0x250 [ 1471.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1471.859652] ? rest_init+0x44d/0x44d [ 1471.859652] ? kernel_init+0x11/0x1e3 [ 1471.859652] ? rest_init+0x44d/0x44d [ 1471.859652] ? ret_from_fork+0x3a/0x50 [ 1494.667652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1494.667652] rcu: (detected by 0, t=299077 jiffies, g=-1115, q=2) [ 1494.667652] rcu: All QSes seen, last rcu_sched kthread activity 299077 (4295260425-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1494.667652] swapper/0 R running task 28008 1 0 0x80000008 [ 1494.667652] Call Trace: [ 1494.667652] [ 1494.667652] ? ftrace_graph_caller+0xa0/0xa0 [ 1494.667652] sched_show_task+0x28f/0x310 [ 1494.667652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 1494.667652] ? ftrace_graph_caller+0xa0/0xa0 [ 1494.667652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 1494.667652] ? ftrace_graph_caller+0xa0/0xa0 [ 1494.667652] update_process_times+0x2d/0x70 [ 1494.667652] ? ftrace_graph_caller+0xa0/0xa0 [ 1494.667652] tick_periodic+0x5c/0x110 [ 1494.667652] tick_handle_periodic+0x30/0xd0 [ 1494.667652] smp_apic_timer_interrupt+0xb7/0x360 [ 1494.667652] apic_timer_interrupt+0xf/0x20 [ 1494.667652] [ 1494.667652] RIP: 0010:trace_graph_return+0x308/0x410 [ 1494.667652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 1494.667652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff13 [ 1494.667652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 1494.667652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000212 [ 1494.667652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 1494.667652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 1494.667652] R13: ffff88800f11fa40 R14: 0000000000000212 R15: ffff8880a38b2588 [ 1494.667652] ? trace_graph_return+0x2ed/0x410 [ 1494.667652] ? __check_object_size+0xa4/0x752 [ 1494.667652] ftrace_return_to_handler+0x1fb/0x2f0 [ 1494.667652] ? function_graph_enter+0x370/0x370 [ 1494.667652] ? __phys_addr+0x120/0x120 [ 1494.667652] ? __check_object_size+0x8d/0x752 [ 1494.667652] return_to_handler+0x15/0x36 [ 1494.667652] ? ftrace_graph_caller+0xa0/0xa0 [ 1494.667652] ? __check_object_size+0xa4/0x752 [ 1494.667652] ? __probe_kernel_write+0x90/0x120 [ 1494.667652] ? __probe_kernel_write+0xa0/0x120 [ 1494.667652] ? ftrace_regs_caller_end+0x14/0x14 [ 1494.667652] ? ftrace_write+0x22/0x60 [ 1494.667652] ? ftrace_replace_code+0x2fb/0x350 [ 1494.667652] ? ftrace_int3_handler+0x70/0x70 [ 1494.667652] ? wait_for_completion+0x260/0x260 [ 1494.667652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1494.667652] ? arch_ftrace_update_code+0x22/0x40 [ 1494.667652] ? ftrace_run_update_code+0x2b/0xd0 [ 1494.667652] ? ftrace_startup_enable+0x3a/0x70 [ 1494.667652] ? ftrace_startup+0x162/0x200 [ 1494.667652] ? register_ftrace_graph+0x658/0x6b0 [ 1494.667652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1494.667652] ? trace_selftest_startup_function+0x91f/0x91f [ 1494.667652] ? find_next_bit+0xba/0xd0 [ 1494.667652] ? run_tracer_selftest+0x285/0x382 [ 1494.667652] ? init_graph_tracefs+0x49/0x49 [ 1494.667652] ? register_tracer+0x290/0x3f8 [ 1494.667652] ? init_graph_trace+0xac/0xb4 [ 1494.667652] ? do_one_initcall+0x101/0x64a [ 1494.667652] ? perf_trace_initcall_level+0x280/0x280 [ 1494.667652] ? __lock_is_held+0x38/0xd0 [ 1494.667652] ? check_flags+0x250/0x250 [ 1494.667652] ? kernel_init_freeable+0x4a6/0x58c [ 1494.667652] ? rest_init+0x44d/0x44d [ 1494.667652] ? kernel_init+0x11/0x1e3 [ 1494.667652] ? rest_init+0x44d/0x44d [ 1494.667652] ? ret_from_fork+0x3a/0x50 [ 1494.667652] rcu: rcu_sched kthread starved for 299077 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 1494.667652] rcu: RCU grace-period kthread stack dump: [ 1494.667652] rcu_sched R running task 30600 10 2 0x80000000 [ 1494.667652] Call Trace: [ 1494.667652] ? __schedule+0x6af/0x1160 [ 1494.667652] ? firmware_map_remove+0x115/0x115 [ 1494.667652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1494.667652] schedule+0x46/0xc0 [ 1494.667652] schedule_timeout+0x476/0xd00 [ 1494.667652] ? mark_held_locks+0x23/0xb0 [ 1494.667652] ? usleep_range+0x120/0x120 [ 1494.667652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1494.667652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1494.667652] ? trace_hardirqs_on+0x33/0x270 [ 1494.667652] ? __next_timer_interrupt+0x190/0x190 [ 1494.667652] ? prepare_to_swait_exclusive+0x110/0x110 [ 1494.667652] rcu_gp_kthread+0x8e8/0x14b0 [ 1494.667652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1494.667652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1494.667652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1494.667652] ? trace_hardirqs_on+0x33/0x270 [ 1494.667652] ? __kthread_parkme+0xdb/0x100 [ 1494.667652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1494.667652] kthread+0x202/0x230 [ 1494.667652] ? kthread_unpark+0xf0/0xf0 [ 1494.667652] ret_from_fork+0x3a/0x50 [ 1519.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1519.859652] Modules linked in: [ 1519.859652] irq event stamp: 19962388 [ 1519.859652] hardirqs last enabled at (19962387): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1519.859652] hardirqs last disabled at (19962388): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1519.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1519.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1519.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1519.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1519.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 1519.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 1519.859652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 1519.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 1519.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 1519.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 1519.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 1519.859652] R13: ffff88800f11fa40 R14: 0000000000000202 R15: ffff8880a38b2588 [ 1519.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1519.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1519.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1519.859652] Call Trace: [ 1519.859652] ? __check_object_size+0xc6/0x752 [ 1519.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 1519.859652] ? function_graph_enter+0x370/0x370 [ 1519.859652] ? __phys_addr_symbol+0x60/0x60 [ 1519.859652] ? __check_object_size+0xb0/0x752 [ 1519.859652] return_to_handler+0x15/0x36 [ 1519.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1519.859652] ? __check_object_size+0xc6/0x752 [ 1519.859652] ? __probe_kernel_write+0x90/0x120 [ 1519.859652] ? __probe_kernel_write+0xa0/0x120 [ 1519.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1519.859652] ? ftrace_write+0x22/0x60 [ 1519.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1519.859652] ? ftrace_int3_handler+0x70/0x70 [ 1519.859652] ? wait_for_completion+0x260/0x260 [ 1519.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1519.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1519.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1519.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1519.859652] ? ftrace_startup+0x162/0x200 [ 1519.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1519.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1519.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1519.859652] ? find_next_bit+0xba/0xd0 [ 1519.859652] ? run_tracer_selftest+0x285/0x382 [ 1519.859652] ? init_graph_tracefs+0x49/0x49 [ 1519.859652] ? register_tracer+0x290/0x3f8 [ 1519.859652] ? init_graph_trace+0xac/0xb4 [ 1519.859652] ? do_one_initcall+0x101/0x64a [ 1519.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1519.859652] ? __lock_is_held+0x38/0xd0 [ 1519.859652] ? check_flags+0x250/0x250 [ 1519.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1519.859652] ? rest_init+0x44d/0x44d [ 1519.859652] ? kernel_init+0x11/0x1e3 [ 1519.859652] ? rest_init+0x44d/0x44d [ 1519.859652] ? ret_from_fork+0x3a/0x50 [ 1547.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1547.859652] Modules linked in: [ 1547.859652] irq event stamp: 19976396 [ 1547.859652] hardirqs last enabled at (19976395): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1547.859652] hardirqs last disabled at (19976396): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1547.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1547.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1547.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1547.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1547.859652] RIP: 0010:trace_graph_entry+0x6e9/0x840 [ 1547.859652] Code: 42 ff ff 48 c7 c7 10 10 37 83 e8 42 8a 26 00 48 83 3d 5a f4 f5 01 00 0f 84 fc 00 00 00 48 83 05 5c 8e 1d 04 01 4c 89 ff 57 9d <66> 66 90 66 90 48 83 05 6a 8e 1d 04 01 e9 4c f9 ff ff 4c 89 ff 48 [ 1547.859652] RSP: 0018:ffff88800f11f908 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 1547.859652] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81411bae [ 1547.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 1547.859652] RBP: ffff88800f11f988 R08: ffffed1014704706 R09: 0000000000000000 [ 1547.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3823828 [ 1547.859652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000202 [ 1547.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1547.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1547.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1547.859652] Call Trace: [ 1547.859652] trace_graph_entry_watchdog+0x23/0xc0 [ 1547.859652] function_graph_enter+0x275/0x370 [ 1547.859652] ? ftrace_graph_stop+0x10/0x10 [ 1547.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1547.859652] ? trace_graph_return+0x2ed/0x410 [ 1547.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1547.859652] ? __check_object_size+0x2b3/0x752 [ 1547.859652] prepare_ftrace_return+0x7b/0xa0 [ 1547.859652] ? 0xffffffff81000000 [ 1547.859652] ftrace_graph_caller+0x62/0xa0 [ 1547.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1547.859652] ? __check_object_size+0x299/0x752 [ 1547.859652] ? __check_object_size+0x2a7/0x752 [ 1547.859652] ? __phys_addr_symbol+0x5/0x60 [ 1547.859652] ? return_to_handler+0x15/0x36 [ 1547.859652] __phys_addr_symbol+0x5/0x60 [ 1547.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1547.859652] __check_object_size+0x2b3/0x752 [ 1547.859652] __probe_kernel_write+0xa0/0x120 [ 1547.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1547.859652] ftrace_write+0x22/0x60 [ 1547.859652] ftrace_replace_code+0x2fb/0x350 [ 1547.859652] ? ftrace_int3_handler+0x70/0x70 [ 1547.859652] ? wait_for_completion+0x260/0x260 [ 1547.859652] ftrace_modify_all_code+0x141/0x2b0 [ 1547.859652] arch_ftrace_update_code+0x22/0x40 [ 1547.859652] ftrace_run_update_code+0x2b/0xd0 [ 1547.859652] ftrace_startup_enable+0x3a/0x70 [ 1547.859652] ftrace_startup+0x162/0x200 [ 1547.859652] register_ftrace_graph+0x658/0x6b0 [ 1547.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1547.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1547.859652] ? find_next_bit+0xba/0xd0 [ 1547.859652] run_tracer_selftest+0x285/0x382 [ 1547.859652] ? init_graph_tracefs+0x49/0x49 [ 1547.859652] register_tracer+0x290/0x3f8 [ 1547.859652] init_graph_trace+0xac/0xb4 [ 1547.859652] do_one_initcall+0x101/0x64a [ 1547.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1547.859652] ? __lock_is_held+0x38/0xd0 [ 1547.859652] ? check_flags+0x250/0x250 [ 1547.859652] kernel_init_freeable+0x4a6/0x58c [ 1547.859652] ? rest_init+0x44d/0x44d [ 1547.859652] kernel_init+0x11/0x1e3 [ 1547.859652] ? rest_init+0x44d/0x44d [ 1547.859652] ret_from_fork+0x3a/0x50 [ 1572.687652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1572.687652] rcu: (detected by 0, t=318582 jiffies, g=-1115, q=2) [ 1572.687652] rcu: All QSes seen, last rcu_sched kthread activity 318582 (4295279930-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1572.687652] swapper/0 R running task 28008 1 0 0x80000008 [ 1572.687652] Call Trace: [ 1572.687652] [ 1572.687652] ? ftrace_graph_caller+0xa0/0xa0 [ 1572.687652] sched_show_task+0x28f/0x310 [ 1572.687652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 1572.687652] ? ftrace_graph_caller+0xa0/0xa0 [ 1572.687652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 1572.687652] ? ftrace_graph_caller+0xa0/0xa0 [ 1572.687652] update_process_times+0x2d/0x70 [ 1572.687652] ? ftrace_graph_caller+0xa0/0xa0 [ 1572.687652] tick_periodic+0x5c/0x110 [ 1572.687652] tick_handle_periodic+0x30/0xd0 [ 1572.687652] smp_apic_timer_interrupt+0xb7/0x360 [ 1572.687652] apic_timer_interrupt+0xf/0x20 [ 1572.687652] [ 1572.687652] RIP: 0010:__virt_addr_valid+0xf3/0x1df [ 1572.687652] Code: 25 00 41 bc 19 00 00 00 e8 2a 81 25 00 48 89 eb 44 89 e1 31 ff 48 c1 eb 1b 45 31 e4 49 89 dd 49 d3 ed 4c 89 ee e8 9d 82 25 00 <4d> 85 ed 0f 85 83 00 00 00 e8 ff 80 25 00 48 c7 c7 20 1f 62 85 e8 [ 1572.687652] RSP: 0018:ffff88800f11fac8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 1572.687652] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8112c803 [ 1572.687652] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007 [ 1572.687652] RBP: 000000000490b020 R08: ffff88800f111000 R09: fffffbfff0921604 [ 1572.687652] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1572.687652] R13: 0000000000000000 R14: ffffffff8490b021 R15: ffff88800f1135b8 [ 1572.687652] ? __virt_addr_valid+0xf3/0x1df [ 1572.687652] ? __virt_addr_valid+0xf3/0x1df [ 1572.687652] ? ftrace_graph_caller+0xa0/0xa0 [ 1572.687652] __check_object_size+0xa4/0x752 [ 1572.687652] ? __probe_kernel_write+0x90/0x120 [ 1572.687652] __probe_kernel_write+0xa0/0x120 [ 1572.687652] ? ftrace_regs_caller_end+0x14/0x14 [ 1572.687652] ftrace_write+0x22/0x60 [ 1572.687652] ftrace_replace_code+0x2fb/0x350 [ 1572.687652] ? ftrace_int3_handler+0x70/0x70 [ 1572.687652] ? wait_for_completion+0x260/0x260 [ 1572.687652] ftrace_modify_all_code+0x141/0x2b0 [ 1572.687652] arch_ftrace_update_code+0x22/0x40 [ 1572.687652] ftrace_run_update_code+0x2b/0xd0 [ 1572.687652] ftrace_startup_enable+0x3a/0x70 [ 1572.687652] ftrace_startup+0x162/0x200 [ 1572.687652] register_ftrace_graph+0x658/0x6b0 [ 1572.687652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1572.687652] ? trace_selftest_startup_function+0x91f/0x91f [ 1572.687652] ? find_next_bit+0xba/0xd0 [ 1572.687652] run_tracer_selftest+0x285/0x382 [ 1572.687652] ? init_graph_tracefs+0x49/0x49 [ 1572.687652] register_tracer+0x290/0x3f8 [ 1572.687652] init_graph_trace+0xac/0xb4 [ 1572.687652] do_one_initcall+0x101/0x64a [ 1572.687652] ? perf_trace_initcall_level+0x280/0x280 [ 1572.687652] ? __lock_is_held+0x38/0xd0 [ 1572.687652] ? check_flags+0x250/0x250 [ 1572.687652] kernel_init_freeable+0x4a6/0x58c [ 1572.687652] ? rest_init+0x44d/0x44d [ 1572.687652] kernel_init+0x11/0x1e3 [ 1572.687652] ? rest_init+0x44d/0x44d [ 1572.687652] ret_from_fork+0x3a/0x50 [ 1572.687652] rcu: rcu_sched kthread starved for 318582 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 1572.687652] rcu: RCU grace-period kthread stack dump: [ 1572.687652] rcu_sched R running task 30600 10 2 0x80000000 [ 1572.687652] Call Trace: [ 1572.687652] ? __schedule+0x6af/0x1160 [ 1572.687652] ? firmware_map_remove+0x115/0x115 [ 1572.687652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1572.687652] schedule+0x46/0xc0 [ 1572.687652] schedule_timeout+0x476/0xd00 [ 1572.687652] ? mark_held_locks+0x23/0xb0 [ 1572.687652] ? usleep_range+0x120/0x120 [ 1572.687652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1572.687652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1572.687652] ? trace_hardirqs_on+0x33/0x270 [ 1572.687652] ? __next_timer_interrupt+0x190/0x190 [ 1572.687652] ? prepare_to_swait_exclusive+0x110/0x110 [ 1572.687652] rcu_gp_kthread+0x8e8/0x14b0 [ 1572.687652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1572.687652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1572.687652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1572.687652] ? trace_hardirqs_on+0x33/0x270 [ 1572.687652] ? __kthread_parkme+0xdb/0x100 [ 1572.687652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1572.687652] kthread+0x202/0x230 [ 1572.687652] ? kthread_unpark+0xf0/0xf0 [ 1572.687652] ret_from_fork+0x3a/0x50 [ 1599.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1599.859652] Modules linked in: [ 1599.859652] irq event stamp: 20002420 [ 1599.859652] hardirqs last enabled at (20002419): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1599.859652] hardirqs last disabled at (20002420): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1599.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1599.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1599.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1599.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1599.859652] RIP: 0010:trace_graph_entry+0x6e9/0x840 [ 1599.859652] Code: 42 ff ff 48 c7 c7 10 10 37 83 e8 42 8a 26 00 48 83 3d 5a f4 f5 01 00 0f 84 fc 00 00 00 48 83 05 5c 8e 1d 04 01 4c 89 ff 57 9d <66> 66 90 66 90 48 83 05 6a 8e 1d 04 01 e9 4c f9 ff ff 4c 89 ff 48 [ 1599.859652] RSP: 0018:ffff88800f11f908 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 1599.859652] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81411bae [ 1599.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000206 [ 1599.859652] RBP: ffff88800f11f988 R08: ffffed1014704706 R09: 0000000000000000 [ 1599.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3823828 [ 1599.859652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000206 [ 1599.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1599.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1599.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1599.859652] Call Trace: [ 1599.859652] trace_graph_entry_watchdog+0x23/0xc0 [ 1599.859652] function_graph_enter+0x275/0x370 [ 1599.859652] ? ftrace_graph_stop+0x10/0x10 [ 1599.859652] ? trace_graph_return+0x2e1/0x410 [ 1599.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1599.859652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1599.859652] ? trace_graph_return+0x2e1/0x410 [ 1599.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1599.859652] ? __check_object_size+0x2b3/0x752 [ 1599.859652] prepare_ftrace_return+0x7b/0xa0 [ 1599.859652] ? 0xffffffff81000000 [ 1599.859652] ftrace_graph_caller+0x62/0xa0 [ 1599.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1599.859652] ? __check_object_size+0x299/0x752 [ 1599.859652] ? __check_object_size+0x2a7/0x752 [ 1599.859652] ? __phys_addr_symbol+0x5/0x60 [ 1599.859652] ? return_to_handler+0x15/0x36 [ 1599.859652] __phys_addr_symbol+0x5/0x60 [ 1599.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1599.859652] __check_object_size+0x2b3/0x752 [ 1599.859652] __probe_kernel_write+0xa0/0x120 [ 1599.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1599.859652] ftrace_write+0x22/0x60 [ 1599.859652] ftrace_replace_code+0x2fb/0x350 [ 1599.859652] ? ftrace_int3_handler+0x70/0x70 [ 1599.859652] ? wait_for_completion+0x260/0x260 [ 1599.859652] ftrace_modify_all_code+0x141/0x2b0 [ 1599.859652] arch_ftrace_update_code+0x22/0x40 [ 1599.859652] ftrace_run_update_code+0x2b/0xd0 [ 1599.859652] ftrace_startup_enable+0x3a/0x70 [ 1599.859652] ftrace_startup+0x162/0x200 [ 1599.859652] register_ftrace_graph+0x658/0x6b0 [ 1599.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1599.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1599.859652] ? find_next_bit+0xba/0xd0 [ 1599.859652] run_tracer_selftest+0x285/0x382 [ 1599.859652] ? init_graph_tracefs+0x49/0x49 [ 1599.859652] register_tracer+0x290/0x3f8 [ 1599.859652] init_graph_trace+0xac/0xb4 [ 1599.859652] do_one_initcall+0x101/0x64a [ 1599.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1599.859652] ? __lock_is_held+0x38/0xd0 [ 1599.859652] ? check_flags+0x250/0x250 [ 1599.859652] kernel_init_freeable+0x4a6/0x58c [ 1599.859652] ? rest_init+0x44d/0x44d [ 1599.859652] kernel_init+0x11/0x1e3 [ 1599.859652] ? rest_init+0x44d/0x44d [ 1599.859652] ret_from_fork+0x3a/0x50 [ 1627.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 1627.859652] Modules linked in: [ 1627.859652] irq event stamp: 20016422 [ 1627.859652] hardirqs last enabled at (20016421): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1627.859652] hardirqs last disabled at (20016422): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1627.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1627.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1627.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1627.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1627.859652] RIP: 0010:__asan_load8+0x0/0xa0 [ 1627.859652] Code: 30 84 c0 74 c3 38 d0 0f 9e c0 84 c0 74 ba ba 01 00 00 00 be 04 00 00 00 e9 4d f5 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 <48> 8b 0c 24 eb 39 66 66 90 48 b8 00 00 00 00 00 00 00 ff 48 39 f8 [ 1627.859652] RSP: 0018:ffff88800f11fb90 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 1627.859652] RAX: ffff88800fd15a20 RBX: ffff88800fd15a20 RCX: ffffffff813bdec3 [ 1627.859652] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff88800fd15a28 [ 1627.859652] RBP: 0000000000000001 R08: ffff88800f111000 R09: 0000000000000000 [ 1627.859652] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 1627.859652] R13: 0000000000000000 R14: ffffffff82601ac0 R15: ffffffff855c3cc0 [ 1627.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1627.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1627.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1627.859652] Call Trace: [ 1627.859652] ftrace_check_record+0x27/0x330 [ 1627.859652] ftrace_update_record+0x12/0x20 [ 1627.859652] ftrace_replace_code+0x2ab/0x350 [ 1627.859652] ? ftrace_int3_handler+0x70/0x70 [ 1627.859652] ? wait_for_completion+0x260/0x260 [ 1627.859652] ftrace_modify_all_code+0x141/0x2b0 [ 1627.859652] arch_ftrace_update_code+0x22/0x40 [ 1627.859652] ftrace_run_update_code+0x2b/0xd0 [ 1627.859652] ftrace_startup_enable+0x3a/0x70 [ 1627.859652] ftrace_startup+0x162/0x200 [ 1627.859652] register_ftrace_graph+0x658/0x6b0 [ 1627.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1627.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1627.859652] ? find_next_bit+0xba/0xd0 [ 1627.859652] run_tracer_selftest+0x285/0x382 [ 1627.859652] ? init_graph_tracefs+0x49/0x49 [ 1627.859652] register_tracer+0x290/0x3f8 [ 1627.859652] init_graph_trace+0xac/0xb4 [ 1627.859652] do_one_initcall+0x101/0x64a [ 1627.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1627.859652] ? __lock_is_held+0x38/0xd0 [ 1627.859652] ? check_flags+0x250/0x250 [ 1627.859652] kernel_init_freeable+0x4a6/0x58c [ 1627.859652] ? rest_init+0x44d/0x44d [ 1627.859652] kernel_init+0x11/0x1e3 [ 1627.859652] ? rest_init+0x44d/0x44d [ 1627.859652] ret_from_fork+0x3a/0x50 [ 1650.707652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1650.707652] rcu: (detected by 0, t=338087 jiffies, g=-1115, q=2) [ 1650.707652] rcu: All QSes seen, last rcu_sched kthread activity 338087 (4295299435-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1650.707652] swapper/0 R running task 28008 1 0 0x80000008 [ 1650.707652] Call Trace: [ 1650.707652] [ 1650.707652] ? ftrace_graph_caller+0xa0/0xa0 [ 1650.707652] sched_show_task+0x28f/0x310 [ 1650.707652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 1650.707652] ? ftrace_graph_caller+0xa0/0xa0 [ 1650.707652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 1650.707652] ? ftrace_graph_caller+0xa0/0xa0 [ 1650.707652] update_process_times+0x2d/0x70 [ 1650.707652] ? ftrace_graph_caller+0xa0/0xa0 [ 1650.707652] tick_periodic+0x5c/0x110 [ 1650.707652] tick_handle_periodic+0x30/0xd0 [ 1650.707652] smp_apic_timer_interrupt+0xb7/0x360 [ 1650.707652] apic_timer_interrupt+0xf/0x20 [ 1650.707652] [ 1650.707652] RIP: 0010:trace_graph_entry+0x6e9/0x840 [ 1650.707652] Code: 42 ff ff 48 c7 c7 10 10 37 83 e8 42 8a 26 00 48 83 3d 5a f4 f5 01 00 0f 84 fc 00 00 00 48 83 05 5c 8e 1d 04 01 4c 89 ff 57 9d <66> 66 90 66 90 48 83 05 6a 8e 1d 04 01 e9 4c f9 ff ff 4c 89 ff 48 [ 1650.707652] RSP: 0018:ffff88800f11f908 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 1650.707652] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81411bae [ 1650.707652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 1650.707652] RBP: ffff88800f11f988 R08: ffffed1014704706 R09: 0000000000000000 [ 1650.707652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3823828 [ 1650.707652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000202 [ 1650.707652] ? trace_graph_entry+0x6ce/0x840 [ 1650.707652] trace_graph_entry_watchdog+0x23/0xc0 [ 1650.707652] function_graph_enter+0x275/0x370 [ 1650.707652] ? ftrace_graph_stop+0x10/0x10 [ 1650.707652] ? __phys_addr+0x120/0x120 [ 1650.707652] ? __phys_addr+0x120/0x120 [ 1650.707652] ? __check_object_size+0xa4/0x752 [ 1650.707652] prepare_ftrace_return+0x7b/0xa0 [ 1650.707652] ftrace_graph_caller+0x62/0xa0 [ 1650.707652] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1650.707652] ? __check_object_size+0x8d/0x752 [ 1650.707652] ? __check_object_size+0x9c/0x752 [ 1650.707652] ? __virt_addr_valid+0x5/0x1df [ 1650.707652] __virt_addr_valid+0x5/0x1df [ 1650.707652] ? ftrace_graph_caller+0xa0/0xa0 [ 1650.707652] __check_object_size+0xa4/0x752 [ 1650.707652] ? __probe_kernel_write+0x90/0x120 [ 1650.707652] __probe_kernel_write+0xa0/0x120 [ 1650.707652] ? ftrace_regs_caller_end+0x14/0x14 [ 1650.707652] ftrace_write+0x22/0x60 [ 1650.707652] ftrace_replace_code+0x2fb/0x350 [ 1650.707652] ? ftrace_int3_handler+0x70/0x70 [ 1650.707652] ? wait_for_completion+0x260/0x260 [ 1650.707652] ftrace_modify_all_code+0x141/0x2b0 [ 1650.707652] arch_ftrace_update_code+0x22/0x40 [ 1650.707652] ftrace_run_update_code+0x2b/0xd0 [ 1650.707652] ftrace_startup_enable+0x3a/0x70 [ 1650.707652] ftrace_startup+0x162/0x200 [ 1650.707652] register_ftrace_graph+0x658/0x6b0 [ 1650.707652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1650.707652] ? trace_selftest_startup_function+0x91f/0x91f [ 1650.707652] ? find_next_bit+0xba/0xd0 [ 1650.707652] run_tracer_selftest+0x285/0x382 [ 1650.707652] ? init_graph_tracefs+0x49/0x49 [ 1650.707652] register_tracer+0x290/0x3f8 [ 1650.707652] init_graph_trace+0xac/0xb4 [ 1650.707652] do_one_initcall+0x101/0x64a [ 1650.707652] ? perf_trace_initcall_level+0x280/0x280 [ 1650.707652] ? __lock_is_held+0x38/0xd0 [ 1650.707652] ? check_flags+0x250/0x250 [ 1650.707652] kernel_init_freeable+0x4a6/0x58c [ 1650.707652] ? rest_init+0x44d/0x44d [ 1650.707652] kernel_init+0x11/0x1e3 [ 1650.707652] ? rest_init+0x44d/0x44d [ 1650.707652] ret_from_fork+0x3a/0x50 [ 1650.707652] rcu: rcu_sched kthread starved for 338087 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 1650.707652] rcu: RCU grace-period kthread stack dump: [ 1650.707652] rcu_sched R running task 30600 10 2 0x80000000 [ 1650.707652] Call Trace: [ 1650.707652] ? __schedule+0x6af/0x1160 [ 1650.707652] ? firmware_map_remove+0x115/0x115 [ 1650.707652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1650.707652] schedule+0x46/0xc0 [ 1650.707652] schedule_timeout+0x476/0xd00 [ 1650.707652] ? mark_held_locks+0x23/0xb0 [ 1650.707652] ? usleep_range+0x120/0x120 [ 1650.707652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1650.707652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1650.707652] ? trace_hardirqs_on+0x33/0x270 [ 1650.707652] ? __next_timer_interrupt+0x190/0x190 [ 1650.707652] ? prepare_to_swait_exclusive+0x110/0x110 [ 1650.707652] rcu_gp_kthread+0x8e8/0x14b0 [ 1650.707652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1650.707652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1650.707652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1650.707652] ? trace_hardirqs_on+0x33/0x270 [ 1650.707652] ? __kthread_parkme+0xdb/0x100 [ 1650.707652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1650.707652] kthread+0x202/0x230 [ 1650.707652] ? kthread_unpark+0xf0/0xf0 [ 1650.707652] ret_from_fork+0x3a/0x50 [ 1675.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1675.859652] Modules linked in: [ 1675.859652] irq event stamp: 20040430 [ 1675.859652] hardirqs last enabled at (20040429): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1675.859652] hardirqs last disabled at (20040430): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1675.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1675.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1675.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1675.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1675.859652] RIP: 0010:__virt_addr_valid+0xc1/0x1df [ 1675.859652] Code: 00 00 e8 62 81 25 00 89 d9 48 89 e8 31 ff 48 d3 e8 48 89 c3 48 89 c6 e8 dd 82 25 00 48 85 db 0f 85 c0 00 00 00 e8 3f 81 25 00 c8 00 00 00 e8 35 81 25 00 41 bc 19 00 00 00 e8 2a 81 25 00 48 [ 1675.859652] RSP: 0018:ffff88800f11fac8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 1675.859652] RAX: ffff88800f111000 RBX: 000000000490b020 RCX: ffffffff8112c8e0 [ 1675.859652] RDX: 0000000000000000 RSI: ffffffff8112c7d1 RDI: ffffffff83238010 [ 1675.859652] RBP: 000000000490b020 R08: ffff88800f111000 R09: fffffbfff0921604 [ 1675.859652] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 1675.859652] R13: 0000000000000001 R14: ffffffff8490b021 R15: ffff88800f1135b8 [ 1675.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1675.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1675.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1675.859652] Call Trace: [ 1675.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1675.859652] __check_object_size+0xa4/0x752 [ 1675.859652] ? __probe_kernel_write+0x90/0x120 [ 1675.859652] __probe_kernel_write+0xa0/0x120 [ 1675.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1675.859652] ftrace_write+0x22/0x60 [ 1675.859652] ftrace_replace_code+0x2fb/0x350 [ 1675.859652] ? ftrace_int3_handler+0x70/0x70 [ 1675.859652] ? wait_for_completion+0x260/0x260 [ 1675.859652] ftrace_modify_all_code+0x141/0x2b0 [ 1675.859652] arch_ftrace_update_code+0x22/0x40 [ 1675.859652] ftrace_run_update_code+0x2b/0xd0 [ 1675.859652] ftrace_startup_enable+0x3a/0x70 [ 1675.859652] ftrace_startup+0x162/0x200 [ 1675.859652] register_ftrace_graph+0x658/0x6b0 [ 1675.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1675.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1675.859652] ? find_next_bit+0xba/0xd0 [ 1675.859652] run_tracer_selftest+0x285/0x382 [ 1675.859652] ? init_graph_tracefs+0x49/0x49 [ 1675.859652] register_tracer+0x290/0x3f8 [ 1675.859652] init_graph_trace+0xac/0xb4 [ 1675.859652] do_one_initcall+0x101/0x64a [ 1675.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1675.859652] ? __lock_is_held+0x38/0xd0 [ 1675.859652] ? check_flags+0x250/0x250 [ 1675.859652] kernel_init_freeable+0x4a6/0x58c [ 1675.859652] ? rest_init+0x44d/0x44d [ 1675.859652] kernel_init+0x11/0x1e3 [ 1675.859652] ? rest_init+0x44d/0x44d [ 1675.859652] ret_from_fork+0x3a/0x50 [ 1703.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1703.859652] Modules linked in: [ 1703.859652] irq event stamp: 20054432 [ 1703.859652] hardirqs last enabled at (20054431): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1703.859652] hardirqs last disabled at (20054432): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1703.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1703.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1703.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1703.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1703.859652] RIP: 0010:__asan_load8+0x0/0xa0 [ 1703.859652] Code: 30 84 c0 74 c3 38 d0 0f 9e c0 84 c0 74 ba ba 01 00 00 00 be 04 00 00 00 e9 4d f5 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 <48> 8b 0c 24 eb 39 66 66 90 48 b8 00 00 00 00 00 00 00 ff 48 39 f8 [ 1703.859652] RSP: 0018:ffff88800f11f900 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 1703.859652] RAX: 0000000000000206 RBX: ffffffff8112c5f0 RCX: ffffffff814118b2 [ 1703.859652] RDX: dffffc0000000000 RSI: ffffffff8112c5f0 RDI: ffffffff83371018 [ 1703.859652] RBP: ffff88800f11f988 R08: ffffed1001e23f32 R09: ffffed1001e23f31 [ 1703.859652] R10: ffffed1001e23f31 R11: ffff88800f11f98f R12: ffffffff8112c5f0 [ 1703.859652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000206 [ 1703.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1703.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1703.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1703.859652] Call Trace: [ 1703.859652] trace_graph_entry+0x3fe/0x840 [ 1703.859652] trace_graph_entry_watchdog+0x23/0xc0 [ 1703.859652] function_graph_enter+0x275/0x370 [ 1703.859652] ? ftrace_graph_stop+0x10/0x10 [ 1703.859652] ? __phys_addr_symbol+0x60/0x60 [ 1703.859652] ? trace_graph_return+0x2ed/0x410 [ 1703.859652] ? __phys_addr_symbol+0x60/0x60 [ 1703.859652] ? __check_object_size+0xc6/0x752 [ 1703.859652] prepare_ftrace_return+0x7b/0xa0 [ 1703.859652] ftrace_graph_caller+0x62/0xa0 [ 1703.859652] ? __phys_addr+0x120/0x120 [ 1703.859652] ? __virt_addr_valid+0x1d0/0x1df [ 1703.859652] ? __check_object_size+0xb0/0x752 [ 1703.859652] ? __check_object_size+0xbe/0x752 [ 1703.859652] ? __phys_addr+0x5/0x120 [ 1703.859652] ? return_to_handler+0x15/0x36 [ 1703.859652] __phys_addr+0x5/0x120 [ 1703.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1703.859652] __check_object_size+0xc6/0x752 [ 1703.859652] ? __probe_kernel_write+0x90/0x120 [ 1703.859652] __probe_kernel_write+0xa0/0x120 [ 1703.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1703.859652] ftrace_write+0x22/0x60 [ 1703.859652] ftrace_replace_code+0x2fb/0x350 [ 1703.859652] ? ftrace_int3_handler+0x70/0x70 [ 1703.859652] ? wait_for_completion+0x260/0x260 [ 1703.859652] ftrace_modify_all_code+0x141/0x2b0 [ 1703.859652] arch_ftrace_update_code+0x22/0x40 [ 1703.859652] ftrace_run_update_code+0x2b/0xd0 [ 1703.859652] ftrace_startup_enable+0x3a/0x70 [ 1703.859652] ftrace_startup+0x162/0x200 [ 1703.859652] register_ftrace_graph+0x658/0x6b0 [ 1703.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1703.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1703.859652] ? find_next_bit+0xba/0xd0 [ 1703.859652] run_tracer_selftest+0x285/0x382 [ 1703.859652] ? init_graph_tracefs+0x49/0x49 [ 1703.859652] register_tracer+0x290/0x3f8 [ 1703.859652] init_graph_trace+0xac/0xb4 [ 1703.859652] do_one_initcall+0x101/0x64a [ 1703.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1703.859652] ? __lock_is_held+0x38/0xd0 [ 1703.859652] ? check_flags+0x250/0x250 [ 1703.859652] kernel_init_freeable+0x4a6/0x58c [ 1703.859652] ? rest_init+0x44d/0x44d [ 1703.859652] kernel_init+0x11/0x1e3 [ 1703.859652] ? rest_init+0x44d/0x44d [ 1703.859652] ret_from_fork+0x3a/0x50 [ 1728.727652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1728.727652] rcu: (detected by 0, t=357592 jiffies, g=-1115, q=2) [ 1728.727652] rcu: All QSes seen, last rcu_sched kthread activity 357592 (4295318940-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1728.727652] swapper/0 R running task 28008 1 0 0x80000008 [ 1728.727652] Call Trace: [ 1728.727652] [ 1728.727652] ? ftrace_graph_caller+0xa0/0xa0 [ 1728.727652] sched_show_task+0x28f/0x310 [ 1728.727652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 1728.727652] ? ftrace_graph_caller+0xa0/0xa0 [ 1728.727652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 1728.727652] ? ftrace_graph_caller+0xa0/0xa0 [ 1728.727652] update_process_times+0x2d/0x70 [ 1728.727652] ? ftrace_graph_caller+0xa0/0xa0 [ 1728.727652] tick_periodic+0x5c/0x110 [ 1728.727652] tick_handle_periodic+0x30/0xd0 [ 1728.727652] smp_apic_timer_interrupt+0xb7/0x360 [ 1728.727652] apic_timer_interrupt+0xf/0x20 [ 1728.727652] [ 1728.727652] RIP: 0010:trace_clock_local+0x1c/0x40 [ 1728.727652] Code: c8 41 01 d0 41 01 f0 41 8d 04 38 c3 90 90 48 83 05 18 4e 20 04 01 65 ff 05 41 c8 c6 7e 48 83 05 11 4e 20 04 01 e8 44 a9 cc ff <48> 83 05 0c 4e 20 04 01 48 83 05 0c 4e 20 04 01 65 ff 0d 1d c8 c6 [ 1728.727652] RSP: 0018:ffff88800f11f940 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1728.727652] RAX: 000001cad78adeac RBX: ffff88800f111000 RCX: 000000000000001f [ 1728.727652] RDX: 00000000000000e5 RSI: 000000002497beeb RDI: 0000000000000002 [ 1728.727652] RBP: ffff88800f11fa28 R08: 0000000000000002 R09: ffffed1001e226a9 [ 1728.727652] R10: ffffed1001e226a9 R11: ffff88800f11354f R12: ffff88800f113538 [ 1728.727652] R13: 1ffff11001e23f2d R14: ffffffff8112c590 R15: ffff88800f11352c [ 1728.727652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1728.727652] function_graph_enter+0x135/0x370 [ 1728.727652] ? __check_object_size+0x274/0x752 [ 1728.727652] ? ftrace_graph_stop+0x10/0x10 [ 1728.727652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1728.727652] ? retint_kernel+0x10/0x10 [ 1728.727652] ? trace_hardirqs_on_caller+0x35/0x270 [ 1728.727652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1728.727652] ? __check_object_size+0x274/0x752 [ 1728.727652] prepare_ftrace_return+0x7b/0xa0 [ 1728.727652] ? 0xffffffff81000000 [ 1728.727652] ftrace_graph_caller+0x62/0xa0 [ 1728.727652] ? __check_object_size+0x245/0x752 [ 1728.727652] ? __check_object_size+0x268/0x752 [ 1728.727652] ? 0xffffffff81000000 [ 1728.727652] ? __phys_addr_symbol+0x5/0x60 [ 1728.727652] __phys_addr_symbol+0x5/0x60 [ 1728.727652] ftrace_graph_caller+0xa0/0xa0 [ 1728.727652] ? __probe_kernel_write+0xa0/0x120 [ 1728.727652] ? ftrace_regs_caller_end+0x14/0x14 [ 1728.727652] ? ftrace_write+0x22/0x60 [ 1728.727652] ? ftrace_replace_code+0x2fb/0x350 [ 1728.727652] ? ftrace_int3_handler+0x70/0x70 [ 1728.727652] ? wait_for_completion+0x260/0x260 [ 1728.727652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1728.727652] ? arch_ftrace_update_code+0x22/0x40 [ 1728.727652] ? ftrace_run_update_code+0x2b/0xd0 [ 1728.727652] ? ftrace_startup_enable+0x3a/0x70 [ 1728.727652] ? ftrace_startup+0x162/0x200 [ 1728.727652] ? register_ftrace_graph+0x658/0x6b0 [ 1728.727652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1728.727652] ? trace_selftest_startup_function+0x91f/0x91f [ 1728.727652] ? find_next_bit+0xba/0xd0 [ 1728.727652] ? run_tracer_selftest+0x285/0x382 [ 1728.727652] ? init_graph_tracefs+0x49/0x49 [ 1728.727652] ? register_tracer+0x290/0x3f8 [ 1728.727652] ? init_graph_trace+0xac/0xb4 [ 1728.727652] ? do_one_initcall+0x101/0x64a [ 1728.727652] ? perf_trace_initcall_level+0x280/0x280 [ 1728.727652] ? __lock_is_held+0x38/0xd0 [ 1728.727652] ? check_flags+0x250/0x250 [ 1728.727652] ? kernel_init_freeable+0x4a6/0x58c [ 1728.727652] ? rest_init+0x44d/0x44d [ 1728.727652] ? kernel_init+0x11/0x1e3 [ 1728.727652] ? rest_init+0x44d/0x44d [ 1728.727652] ? ret_from_fork+0x3a/0x50 [ 1728.727652] rcu: rcu_sched kthread starved for 357592 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 1728.727652] rcu: RCU grace-period kthread stack dump: [ 1728.727652] rcu_sched R running task 30600 10 2 0x80000000 [ 1728.727652] Call Trace: [ 1728.727652] ? __schedule+0x6af/0x1160 [ 1728.727652] ? firmware_map_remove+0x115/0x115 [ 1728.727652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1728.727652] schedule+0x46/0xc0 [ 1728.727652] schedule_timeout+0x476/0xd00 [ 1728.727652] ? mark_held_locks+0x23/0xb0 [ 1728.727652] ? usleep_range+0x120/0x120 [ 1728.727652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1728.727652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1728.727652] ? trace_hardirqs_on+0x33/0x270 [ 1728.727652] ? __next_timer_interrupt+0x190/0x190 [ 1728.727652] ? prepare_to_swait_exclusive+0x110/0x110 [ 1728.727652] rcu_gp_kthread+0x8e8/0x14b0 [ 1728.727652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1728.727652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1728.727652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1728.727652] ? trace_hardirqs_on+0x33/0x270 [ 1728.727652] ? __kthread_parkme+0xdb/0x100 [ 1728.727652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1728.727652] kthread+0x202/0x230 [ 1728.727652] ? kthread_unpark+0xf0/0xf0 [ 1728.727652] ret_from_fork+0x3a/0x50 [ 1755.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 1755.859652] Modules linked in: [ 1755.859652] irq event stamp: 20080442 [ 1755.859652] hardirqs last enabled at (20080441): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1755.859652] hardirqs last disabled at (20080442): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1755.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1755.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1755.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1755.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1755.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 1755.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 1755.859652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff13 [ 1755.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 1755.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000216 [ 1755.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 1755.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 1755.859652] R13: ffff88800f11fa40 R14: 0000000000000216 R15: ffff8880a38b2588 [ 1755.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1755.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1755.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1755.859652] Call Trace: [ 1755.859652] ? __check_object_size+0x274/0x752 [ 1755.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 1755.859652] ? function_graph_enter+0x370/0x370 [ 1755.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1755.859652] ? 0xffffffff81000000 [ 1755.859652] return_to_handler+0x15/0x36 [ 1755.859652] ? __probe_kernel_write+0xa0/0x120 [ 1755.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1755.859652] ? ftrace_write+0x22/0x60 [ 1755.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1755.859652] ? ftrace_int3_handler+0x70/0x70 [ 1755.859652] ? wait_for_completion+0x260/0x260 [ 1755.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1755.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1755.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1755.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1755.859652] ? ftrace_startup+0x162/0x200 [ 1755.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1755.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1755.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1755.859652] ? find_next_bit+0xba/0xd0 [ 1755.859652] ? run_tracer_selftest+0x285/0x382 [ 1755.859652] ? init_graph_tracefs+0x49/0x49 [ 1755.859652] ? register_tracer+0x290/0x3f8 [ 1755.859652] ? init_graph_trace+0xac/0xb4 [ 1755.859652] ? do_one_initcall+0x101/0x64a [ 1755.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1755.859652] ? __lock_is_held+0x38/0xd0 [ 1755.859652] ? check_flags+0x250/0x250 [ 1755.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1755.859652] ? rest_init+0x44d/0x44d [ 1755.859652] ? kernel_init+0x11/0x1e3 [ 1755.859652] ? rest_init+0x44d/0x44d [ 1755.859652] ? ret_from_fork+0x3a/0x50 [ 1783.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 1783.859652] Modules linked in: [ 1783.859652] irq event stamp: 20094448 [ 1783.859652] hardirqs last enabled at (20094447): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1783.859652] hardirqs last disabled at (20094448): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1783.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1783.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1783.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1783.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1783.859652] RIP: 0010:function_graph_enter+0x2aa/0x370 [ 1783.859652] Code: 7b 31 c0 48 ba 00 00 00 00 00 fc ff df 49 c7 44 15 00 00 00 00 00 48 8b 4c 24 78 65 48 33 0c 25 28 00 00 00 0f 85 bd 00 00 00 <48> 83 ec 80 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 83 05 17 38 1d 04 [ 1783.859652] RSP: 0018:ffff88800f11f9f8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1783.859652] RAX: 0000000000000000 RBX: ffff88800f111000 RCX: 0000000000000000 [ 1783.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 1783.859652] RBP: ffff8880a38b2588 R08: ffffed1014704706 R09: 0000000000000000 [ 1783.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88800f113538 [ 1783.859652] R13: 1ffff11001e23f43 R14: ffff8880a38b2588 R15: ffff88800f11352c [ 1783.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1783.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1783.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1783.859652] Call Trace: [ 1783.859652] ? ftrace_graph_stop+0x10/0x10 [ 1783.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1783.859652] ? ftrace_replace_code+0x2d0/0x350 [ 1783.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1783.859652] ? ftrace_write+0x3d/0x60 [ 1783.859652] prepare_ftrace_return+0x7b/0xa0 [ 1783.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1783.859652] ftrace_graph_caller+0x62/0xa0 [ 1783.859652] ? __check_object_size+0x2d4/0x752 [ 1783.859652] ? ftrace_replace_code+0x2d0/0x350 [ 1783.859652] ? timecounter_read+0x130/0x130 [ 1783.859652] ? __phys_addr_symbol+0x5/0x60 [ 1783.859652] ? timecounter_read+0x130/0x130 [ 1783.859652] ? ftrace_get_addr_new+0x151/0x270 [ 1783.859652] __phys_addr_symbol+0x5/0x60 [ 1783.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1783.859652] ftrace_write+0x3d/0x60 [ 1783.859652] ftrace_replace_code+0x2fb/0x350 [ 1783.859652] ? ftrace_int3_handler+0x70/0x70 [ 1783.859652] ? wait_for_completion+0x260/0x260 [ 1783.859652] ftrace_modify_all_code+0x141/0x2b0 [ 1783.859652] arch_ftrace_update_code+0x22/0x40 [ 1783.859652] ftrace_run_update_code+0x2b/0xd0 [ 1783.859652] ftrace_startup_enable+0x3a/0x70 [ 1783.859652] ftrace_startup+0x162/0x200 [ 1783.859652] register_ftrace_graph+0x658/0x6b0 [ 1783.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1783.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1783.859652] ? find_next_bit+0xba/0xd0 [ 1783.859652] run_tracer_selftest+0x285/0x382 [ 1783.859652] ? init_graph_tracefs+0x49/0x49 [ 1783.859652] register_tracer+0x290/0x3f8 [ 1783.859652] init_graph_trace+0xac/0xb4 [ 1783.859652] do_one_initcall+0x101/0x64a [ 1783.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1783.859652] ? __lock_is_held+0x38/0xd0 [ 1783.859652] ? check_flags+0x250/0x250 [ 1783.859652] kernel_init_freeable+0x4a6/0x58c [ 1783.859652] ? rest_init+0x44d/0x44d [ 1783.859652] kernel_init+0x11/0x1e3 [ 1783.859652] ? rest_init+0x44d/0x44d [ 1783.859652] ret_from_fork+0x3a/0x50 [ 1806.747652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1806.747652] rcu: (detected by 0, t=377097 jiffies, g=-1115, q=2) [ 1806.747652] rcu: All QSes seen, last rcu_sched kthread activity 377097 (4295338445-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1806.747652] swapper/0 R running task 28008 1 0 0x80000008 [ 1806.747652] Call Trace: [ 1806.747652] [ 1806.747652] ? ftrace_graph_caller+0xa0/0xa0 [ 1806.747652] sched_show_task+0x28f/0x310 [ 1806.747652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 1806.747652] ? ftrace_graph_caller+0xa0/0xa0 [ 1806.747652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 1806.747652] ? ftrace_graph_caller+0xa0/0xa0 [ 1806.747652] update_process_times+0x2d/0x70 [ 1806.747652] ? ftrace_graph_caller+0xa0/0xa0 [ 1806.747652] tick_periodic+0x5c/0x110 [ 1806.747652] tick_handle_periodic+0x30/0xd0 [ 1806.747652] smp_apic_timer_interrupt+0xb7/0x360 [ 1806.747652] apic_timer_interrupt+0xf/0x20 [ 1806.747652] [ 1806.747652] RIP: 0010:function_graph_enter+0xc5/0x370 [ 1806.747652] Code: 40 31 1d 04 01 48 83 05 40 31 1d 04 01 83 c0 01 89 83 30 25 00 00 0f b6 1d 18 3c 1d 04 89 44 24 48 80 fb 01 0f 87 da 14 00 00 <83> e3 01 0f 85 eb 01 00 00 65 48 8b 1c 25 00 ff 01 00 4c 8d a3 38 [ 1806.747652] RSP: 0018:ffff88800f11f948 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff13 [ 1806.747652] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8141c762 [ 1806.747652] RDX: 0000000000000003 RSI: dffffc0000000000 RDI: ffff88800f113530 [ 1806.747652] RBP: ffff88800f11fa28 R08: ffffed1001e226aa R09: ffffed1001e226a9 [ 1806.747652] R10: ffffed1001e226a9 R11: ffff88800f11354f R12: ffffffff8112c710 [ 1806.747652] R13: 1ffff11001e23f2d R14: ffffffff8112c710 R15: ffff88800f11354c [ 1806.747652] ? __phys_addr+0x120/0x120 [ 1806.747652] ? __phys_addr+0x120/0x120 [ 1806.747652] ? function_graph_enter+0x92/0x370 [ 1806.747652] ? function_graph_enter+0x92/0x370 [ 1806.747652] ? __check_object_size+0xa4/0x752 [ 1806.747652] ? mark_lock+0x6e/0xbd0 [ 1806.747652] ? ftrace_graph_stop+0x10/0x10 [ 1806.747652] ? __phys_addr+0x120/0x120 [ 1806.747652] ? __phys_addr+0x120/0x120 [ 1806.747652] ? __check_object_size+0xa4/0x752 [ 1806.747652] prepare_ftrace_return+0x7b/0xa0 [ 1806.747652] ftrace_graph_caller+0x62/0xa0 [ 1806.747652] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1806.747652] ? __check_object_size+0x8d/0x752 [ 1806.747652] ? __check_object_size+0x9c/0x752 [ 1806.747652] ? __virt_addr_valid+0x5/0x1df [ 1806.747652] __virt_addr_valid+0x5/0x1df [ 1806.747652] ftrace_graph_caller+0xa0/0xa0 [ 1806.747652] ? __probe_kernel_write+0x90/0x120 [ 1806.747652] ? __probe_kernel_write+0xa0/0x120 [ 1806.747652] ? ftrace_regs_caller_end+0x14/0x14 [ 1806.747652] ? ftrace_write+0x22/0x60 [ 1806.747652] ? ftrace_replace_code+0x2fb/0x350 [ 1806.747652] ? ftrace_int3_handler+0x70/0x70 [ 1806.747652] ? wait_for_completion+0x260/0x260 [ 1806.747652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1806.747652] ? arch_ftrace_update_code+0x22/0x40 [ 1806.747652] ? ftrace_run_update_code+0x2b/0xd0 [ 1806.747652] ? ftrace_startup_enable+0x3a/0x70 [ 1806.747652] ? ftrace_startup+0x162/0x200 [ 1806.747652] ? register_ftrace_graph+0x658/0x6b0 [ 1806.747652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1806.747652] ? trace_selftest_startup_function+0x91f/0x91f [ 1806.747652] ? find_next_bit+0xba/0xd0 [ 1806.747652] ? run_tracer_selftest+0x285/0x382 [ 1806.747652] ? init_graph_tracefs+0x49/0x49 [ 1806.747652] ? register_tracer+0x290/0x3f8 [ 1806.747652] ? init_graph_trace+0xac/0xb4 [ 1806.747652] ? do_one_initcall+0x101/0x64a [ 1806.747652] ? perf_trace_initcall_level+0x280/0x280 [ 1806.747652] ? __lock_is_held+0x38/0xd0 [ 1806.747652] ? check_flags+0x250/0x250 [ 1806.747652] ? kernel_init_freeable+0x4a6/0x58c [ 1806.747652] ? rest_init+0x44d/0x44d [ 1806.747652] ? kernel_init+0x11/0x1e3 [ 1806.747652] ? rest_init+0x44d/0x44d [ 1806.747652] ? ret_from_fork+0x3a/0x50 [ 1806.747652] rcu: rcu_sched kthread starved for 377097 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 1806.747652] rcu: RCU grace-period kthread stack dump: [ 1806.747652] rcu_sched R running task 30600 10 2 0x80000000 [ 1806.747652] Call Trace: [ 1806.747652] ? __schedule+0x6af/0x1160 [ 1806.747652] ? firmware_map_remove+0x115/0x115 [ 1806.747652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1806.747652] schedule+0x46/0xc0 [ 1806.747652] schedule_timeout+0x476/0xd00 [ 1806.747652] ? mark_held_locks+0x23/0xb0 [ 1806.747652] ? usleep_range+0x120/0x120 [ 1806.747652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1806.747652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1806.747652] ? trace_hardirqs_on+0x33/0x270 [ 1806.747652] ? __next_timer_interrupt+0x190/0x190 [ 1806.747652] ? prepare_to_swait_exclusive+0x110/0x110 [ 1806.747652] rcu_gp_kthread+0x8e8/0x14b0 [ 1806.747652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1806.747652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1806.747652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1806.747652] ? trace_hardirqs_on+0x33/0x270 [ 1806.747652] ? __kthread_parkme+0xdb/0x100 [ 1806.747652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1806.747652] kthread+0x202/0x230 [ 1806.747652] ? kthread_unpark+0xf0/0xf0 [ 1806.747652] ret_from_fork+0x3a/0x50 [ 1831.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 1831.859652] Modules linked in: [ 1831.859652] irq event stamp: 20118456 [ 1831.859652] hardirqs last enabled at (20118455): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1831.859652] hardirqs last disabled at (20118456): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1831.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1831.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1831.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1831.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1831.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 1831.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 1831.859652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 1831.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 1831.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000206 [ 1831.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 1831.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 1831.859652] R13: ffff88800f11fa40 R14: 0000000000000206 R15: ffff8880a38b2588 [ 1831.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1831.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1831.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1831.859652] Call Trace: [ 1831.859652] ? __check_object_size+0xa4/0x752 [ 1831.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 1831.859652] ? function_graph_enter+0x370/0x370 [ 1831.859652] ? __phys_addr+0x120/0x120 [ 1831.859652] ? __check_object_size+0x8d/0x752 [ 1831.859652] return_to_handler+0x15/0x36 [ 1831.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1831.859652] ? __check_object_size+0xa4/0x752 [ 1831.859652] ? __probe_kernel_write+0x90/0x120 [ 1831.859652] ? __probe_kernel_write+0xa0/0x120 [ 1831.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1831.859652] ? ftrace_write+0x22/0x60 [ 1831.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1831.859652] ? ftrace_int3_handler+0x70/0x70 [ 1831.859652] ? wait_for_completion+0x260/0x260 [ 1831.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1831.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1831.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1831.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1831.859652] ? ftrace_startup+0x162/0x200 [ 1831.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1831.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1831.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1831.859652] ? find_next_bit+0xba/0xd0 [ 1831.859652] ? run_tracer_selftest+0x285/0x382 [ 1831.859652] ? init_graph_tracefs+0x49/0x49 [ 1831.859652] ? register_tracer+0x290/0x3f8 [ 1831.859652] ? init_graph_trace+0xac/0xb4 [ 1831.859652] ? do_one_initcall+0x101/0x64a [ 1831.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1831.859652] ? __lock_is_held+0x38/0xd0 [ 1831.859652] ? check_flags+0x250/0x250 [ 1831.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1831.859652] ? rest_init+0x44d/0x44d [ 1831.859652] ? kernel_init+0x11/0x1e3 [ 1831.859652] ? rest_init+0x44d/0x44d [ 1831.859652] ? ret_from_fork+0x3a/0x50 [ 1859.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 1859.859652] Modules linked in: [ 1859.859652] irq event stamp: 20132484 [ 1859.859652] hardirqs last enabled at (20132483): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1859.859652] hardirqs last disabled at (20132484): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1859.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1859.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1859.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1859.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1859.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 1859.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 1859.859652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 1859.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 1859.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 1859.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 1859.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 1859.859652] R13: ffff88800f11fa40 R14: 0000000000000202 R15: ffff8880a38b2588 [ 1859.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1859.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1859.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1859.859652] Call Trace: [ 1859.859652] ? __check_object_size+0xc6/0x752 [ 1859.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 1859.859652] ? function_graph_enter+0x370/0x370 [ 1859.859652] ? __phys_addr_symbol+0x60/0x60 [ 1859.859652] ? __check_object_size+0xb0/0x752 [ 1859.859652] return_to_handler+0x15/0x36 [ 1859.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1859.859652] ? __check_object_size+0xc6/0x752 [ 1859.859652] ? __probe_kernel_write+0x90/0x120 [ 1859.859652] ? __probe_kernel_write+0xa0/0x120 [ 1859.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1859.859652] ? ftrace_write+0x22/0x60 [ 1859.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1859.859652] ? ftrace_int3_handler+0x70/0x70 [ 1859.859652] ? wait_for_completion+0x260/0x260 [ 1859.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1859.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1859.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1859.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1859.859652] ? ftrace_startup+0x162/0x200 [ 1859.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1859.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1859.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1859.859652] ? find_next_bit+0xba/0xd0 [ 1859.859652] ? run_tracer_selftest+0x285/0x382 [ 1859.859652] ? init_graph_tracefs+0x49/0x49 [ 1859.859652] ? register_tracer+0x290/0x3f8 [ 1859.859652] ? init_graph_trace+0xac/0xb4 [ 1859.859652] ? do_one_initcall+0x101/0x64a [ 1859.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1859.859652] ? __lock_is_held+0x38/0xd0 [ 1859.859652] ? check_flags+0x250/0x250 [ 1859.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1859.859652] ? rest_init+0x44d/0x44d [ 1859.859652] ? kernel_init+0x11/0x1e3 [ 1859.859652] ? rest_init+0x44d/0x44d [ 1859.859652] ? ret_from_fork+0x3a/0x50 [ 1884.767652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1884.767652] rcu: (detected by 0, t=396602 jiffies, g=-1115, q=2) [ 1884.767652] rcu: All QSes seen, last rcu_sched kthread activity 396602 (4295357950-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1884.767652] swapper/0 R running task 28008 1 0 0x80000008 [ 1884.767652] Call Trace: [ 1884.767652] [ 1884.767652] ? ftrace_graph_caller+0xa0/0xa0 [ 1884.767652] sched_show_task+0x28f/0x310 [ 1884.767652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 1884.767652] ? ftrace_graph_caller+0xa0/0xa0 [ 1884.767652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 1884.767652] ? ftrace_graph_caller+0xa0/0xa0 [ 1884.767652] update_process_times+0x2d/0x70 [ 1884.767652] ? ftrace_graph_caller+0xa0/0xa0 [ 1884.767652] tick_periodic+0x5c/0x110 [ 1884.767652] tick_handle_periodic+0x30/0xd0 [ 1884.767652] smp_apic_timer_interrupt+0xb7/0x360 [ 1884.767652] apic_timer_interrupt+0xf/0x20 [ 1884.767652] [ 1884.767652] RIP: 0010:__asan_load8+0x0/0xa0 [ 1884.767652] Code: 30 84 c0 74 c3 38 d0 0f 9e c0 84 c0 74 ba ba 01 00 00 00 be 04 00 00 00 e9 4d f5 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 <48> 8b 0c 24 eb 39 66 66 90 48 b8 00 00 00 00 00 00 00 ff 48 39 f8 [ 1884.767652] RSP: 0018:ffff88800f11fb78 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 1884.767652] RAX: 00000000000015a4 RBX: 00000000000015a5 RCX: ffffffff813bdcda [ 1884.767652] RDX: 0000000000000003 RSI: dffffc0000000000 RDI: ffffffff855c3cc0 [ 1884.767652] RBP: 00000000000015a5 R08: ffff88800f111000 R09: 0000000000000000 [ 1884.767652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff855c3cc0 [ 1884.767652] R13: 0000000000000000 R14: ffffffff82601ac0 R15: ffffffff855c3cc0 [ 1884.767652] ? ftrace_regs_caller_end+0x14/0x14 [ 1884.767652] ? ftrace_rec_iter_next+0x2a/0x1d0 [ 1884.767652] ftrace_rec_iter_next+0x57/0x1d0 [ 1884.767652] ? ftrace_regs_caller_end+0x14/0x14 [ 1884.767652] ftrace_replace_code+0x28d/0x350 [ 1884.767652] ? ftrace_int3_handler+0x70/0x70 [ 1884.767652] ? wait_for_completion+0x260/0x260 [ 1884.767652] ftrace_modify_all_code+0x141/0x2b0 [ 1884.767652] arch_ftrace_update_code+0x22/0x40 [ 1884.767652] ftrace_run_update_code+0x2b/0xd0 [ 1884.767652] ftrace_startup_enable+0x3a/0x70 [ 1884.767652] ftrace_startup+0x162/0x200 [ 1884.767652] register_ftrace_graph+0x658/0x6b0 [ 1884.767652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1884.767652] ? trace_selftest_startup_function+0x91f/0x91f [ 1884.767652] ? find_next_bit+0xba/0xd0 [ 1884.767652] run_tracer_selftest+0x285/0x382 [ 1884.767652] ? init_graph_tracefs+0x49/0x49 [ 1884.767652] register_tracer+0x290/0x3f8 [ 1884.767652] init_graph_trace+0xac/0xb4 [ 1884.767652] do_one_initcall+0x101/0x64a [ 1884.767652] ? perf_trace_initcall_level+0x280/0x280 [ 1884.767652] ? __lock_is_held+0x38/0xd0 [ 1884.767652] ? check_flags+0x250/0x250 [ 1884.767652] kernel_init_freeable+0x4a6/0x58c [ 1884.767652] ? rest_init+0x44d/0x44d [ 1884.767652] kernel_init+0x11/0x1e3 [ 1884.767652] ? rest_init+0x44d/0x44d [ 1884.767652] ret_from_fork+0x3a/0x50 [ 1884.767652] rcu: rcu_sched kthread starved for 396602 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 1884.767652] rcu: RCU grace-period kthread stack dump: [ 1884.767652] rcu_sched R running task 30600 10 2 0x80000000 [ 1884.767652] Call Trace: [ 1884.767652] ? __schedule+0x6af/0x1160 [ 1884.767652] ? firmware_map_remove+0x115/0x115 [ 1884.767652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1884.767652] schedule+0x46/0xc0 [ 1884.767652] schedule_timeout+0x476/0xd00 [ 1884.767652] ? mark_held_locks+0x23/0xb0 [ 1884.767652] ? usleep_range+0x120/0x120 [ 1884.767652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1884.767652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1884.767652] ? trace_hardirqs_on+0x33/0x270 [ 1884.767652] ? __next_timer_interrupt+0x190/0x190 [ 1884.767652] ? prepare_to_swait_exclusive+0x110/0x110 [ 1884.767652] rcu_gp_kthread+0x8e8/0x14b0 [ 1884.767652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1884.767652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1884.767652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1884.767652] ? trace_hardirqs_on+0x33/0x270 [ 1884.767652] ? __kthread_parkme+0xdb/0x100 [ 1884.767652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1884.767652] kthread+0x202/0x230 [ 1884.767652] ? kthread_unpark+0xf0/0xf0 [ 1884.767652] ret_from_fork+0x3a/0x50 [ 1911.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1911.859652] Modules linked in: [ 1911.859652] irq event stamp: 20158500 [ 1911.859652] hardirqs last enabled at (20158499): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1911.859652] hardirqs last disabled at (20158500): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1911.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1911.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1911.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1911.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1911.859652] RIP: 0010:trace_graph_entry+0x98/0x840 [ 1911.859652] Code: 95 26 00 4c 8b 75 00 48 83 05 c3 91 1d 04 01 65 ff 05 2c e9 c0 7e 48 c7 c7 c0 50 5a 83 48 83 05 b5 91 1d 04 01 e8 78 90 26 00 <48> 8b 3d 41 3b 19 02 4c 89 f6 e8 79 8e fa ff 48 85 c0 74 54 48 83 [ 1911.859652] RSP: 0018:ffff88800f11f908 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1911.859652] RAX: 0000000000000000 RBX: ffff88800f111000 RCX: ffffffff81411578 [ 1911.859652] RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff835a50c0 [ 1911.859652] RBP: ffff88800f11f988 R08: ffffed1001e23f32 R09: ffffed1001e23f31 [ 1911.859652] R10: ffffed1001e23f31 R11: ffff88800f11f98f R12: ffff88800f113558 [ 1911.859652] R13: ffffffff835cc960 R14: ffffffff8112c710 R15: ffff88800f11352c [ 1911.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1911.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1911.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1911.859652] Call Trace: [ 1911.859652] trace_graph_entry_watchdog+0x23/0xc0 [ 1911.859652] function_graph_enter+0x275/0x370 [ 1911.859652] ? ftrace_graph_stop+0x10/0x10 [ 1911.859652] ? __phys_addr+0x120/0x120 [ 1911.859652] ? __phys_addr+0x120/0x120 [ 1911.859652] ? __check_object_size+0xa4/0x752 [ 1911.859652] prepare_ftrace_return+0x7b/0xa0 [ 1911.859652] ftrace_graph_caller+0x62/0xa0 [ 1911.859652] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 1911.859652] ? __check_object_size+0x8d/0x752 [ 1911.859652] ? __check_object_size+0x9c/0x752 [ 1911.859652] ? __virt_addr_valid+0x5/0x1df [ 1911.859652] __virt_addr_valid+0x5/0x1df [ 1911.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1911.859652] __check_object_size+0xa4/0x752 [ 1911.859652] ? __probe_kernel_write+0x90/0x120 [ 1911.859652] __probe_kernel_write+0xa0/0x120 [ 1911.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1911.859652] ftrace_write+0x22/0x60 [ 1911.859652] ftrace_replace_code+0x2fb/0x350 [ 1911.859652] ? ftrace_int3_handler+0x70/0x70 [ 1911.859652] ? wait_for_completion+0x260/0x260 [ 1911.859652] ftrace_modify_all_code+0x141/0x2b0 [ 1911.859652] arch_ftrace_update_code+0x22/0x40 [ 1911.859652] ftrace_run_update_code+0x2b/0xd0 [ 1911.859652] ftrace_startup_enable+0x3a/0x70 [ 1911.859652] ftrace_startup+0x162/0x200 [ 1911.859652] register_ftrace_graph+0x658/0x6b0 [ 1911.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 1911.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1911.859652] ? find_next_bit+0xba/0xd0 [ 1911.859652] run_tracer_selftest+0x285/0x382 [ 1911.859652] ? init_graph_tracefs+0x49/0x49 [ 1911.859652] register_tracer+0x290/0x3f8 [ 1911.859652] init_graph_trace+0xac/0xb4 [ 1911.859652] do_one_initcall+0x101/0x64a [ 1911.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1911.859652] ? __lock_is_held+0x38/0xd0 [ 1911.859652] ? check_flags+0x250/0x250 [ 1911.859652] kernel_init_freeable+0x4a6/0x58c [ 1911.859652] ? rest_init+0x44d/0x44d [ 1911.859652] kernel_init+0x11/0x1e3 [ 1911.859652] ? rest_init+0x44d/0x44d [ 1911.859652] ret_from_fork+0x3a/0x50 [ 1939.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 1939.859652] Modules linked in: [ 1939.859652] irq event stamp: 20172512 [ 1939.859652] hardirqs last enabled at (20172511): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1939.859652] hardirqs last disabled at (20172512): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1939.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1939.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1939.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1939.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1939.859652] RIP: 0010:__asan_load4+0x0/0x90 [ 1939.859652] Code: 00 e9 94 f6 ff ff 48 ba 00 00 00 00 00 fc ff df 48 89 fe 48 c1 ee 03 80 3c 16 00 75 da 48 c1 e8 03 80 3c 10 00 75 c9 c3 66 90 <48> 8b 0c 24 eb 39 66 66 90 48 b8 00 00 00 00 00 00 00 ff 48 39 f8 [ 1939.859652] RSP: 0018:ffff88800f11fa18 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 1939.859652] RAX: 0000000000000000 RBX: ffff88800f111000 RCX: ffffffff8112c5cd [ 1939.859652] RDX: dffffc0000000000 RSI: ffffffff8112c5c1 RDI: ffff88800f11352c [ 1939.859652] RBP: 0000000000000001 R08: ffff88800f111000 R09: 0000000000000000 [ 1939.859652] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff11001e23f44 [ 1939.859652] R13: ffffffff81000000 R14: ffffffff8490b021 R15: ffffffff8490b020 [ 1939.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1939.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1939.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1939.859652] Call Trace: [ 1939.859652] ftrace_return_to_handler+0x7e/0x2f0 [ 1939.859652] ? function_graph_enter+0x370/0x370 [ 1939.859652] ? __check_object_size+0x245/0x752 [ 1939.859652] ? 0xffffffff81000000 [ 1939.859652] return_to_handler+0x15/0x36 [ 1939.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1939.859652] ? __check_object_size+0x274/0x752 [ 1939.859652] ? __probe_kernel_write+0xa0/0x120 [ 1939.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1939.859652] ? ftrace_write+0x22/0x60 [ 1939.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1939.859652] ? ftrace_int3_handler+0x70/0x70 [ 1939.859652] ? wait_for_completion+0x260/0x260 [ 1939.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1939.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1939.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1939.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1939.859652] ? ftrace_startup+0x162/0x200 [ 1939.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1939.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1939.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1939.859652] ? find_next_bit+0xba/0xd0 [ 1939.859652] ? run_tracer_selftest+0x285/0x382 [ 1939.859652] ? init_graph_tracefs+0x49/0x49 [ 1939.859652] ? register_tracer+0x290/0x3f8 [ 1939.859652] ? init_graph_trace+0xac/0xb4 [ 1939.859652] ? do_one_initcall+0x101/0x64a [ 1939.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1939.859652] ? __lock_is_held+0x38/0xd0 [ 1939.859652] ? check_flags+0x250/0x250 [ 1939.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1939.859652] ? rest_init+0x44d/0x44d [ 1939.859652] ? kernel_init+0x11/0x1e3 [ 1939.859652] ? rest_init+0x44d/0x44d [ 1939.859652] ? ret_from_fork+0x3a/0x50 [ 1962.787652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1962.787652] rcu: (detected by 0, t=416107 jiffies, g=-1115, q=2) [ 1962.787652] rcu: All QSes seen, last rcu_sched kthread activity 416107 (4295377455-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 1962.787652] swapper/0 R running task 28008 1 0 0x80000008 [ 1962.787652] Call Trace: [ 1962.787652] [ 1962.787652] ? ftrace_graph_caller+0xa0/0xa0 [ 1962.787652] sched_show_task+0x28f/0x310 [ 1962.787652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 1962.787652] ? ftrace_graph_caller+0xa0/0xa0 [ 1962.787652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 1962.787652] ? ftrace_graph_caller+0xa0/0xa0 [ 1962.787652] update_process_times+0x2d/0x70 [ 1962.787652] ? ftrace_graph_caller+0xa0/0xa0 [ 1962.787652] tick_periodic+0x5c/0x110 [ 1962.787652] tick_handle_periodic+0x30/0xd0 [ 1962.787652] smp_apic_timer_interrupt+0xb7/0x360 [ 1962.787652] apic_timer_interrupt+0xf/0x20 [ 1962.787652] [ 1962.787652] RIP: 0010:trace_graph_return+0x308/0x410 [ 1962.787652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 1962.787652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 1962.787652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 1962.787652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 1962.787652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 1962.787652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 1962.787652] R13: ffff88800f11fa40 R14: 0000000000000202 R15: ffff8880a38b2588 [ 1962.787652] ? trace_graph_return+0x2ed/0x410 [ 1962.787652] ? __check_object_size+0x2b3/0x752 [ 1962.787652] ftrace_return_to_handler+0x1fb/0x2f0 [ 1962.787652] ? function_graph_enter+0x370/0x370 [ 1962.787652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1962.787652] ? __check_object_size+0x299/0x752 [ 1962.787652] ? 0xffffffff81000000 [ 1962.787652] return_to_handler+0x15/0x36 [ 1962.787652] ? ftrace_graph_caller+0xa0/0xa0 [ 1962.787652] ? __check_object_size+0x2b3/0x752 [ 1962.787652] ? __probe_kernel_write+0xa0/0x120 [ 1962.787652] ? ftrace_regs_caller_end+0x14/0x14 [ 1962.787652] ? ftrace_write+0x22/0x60 [ 1962.787652] ? ftrace_replace_code+0x2fb/0x350 [ 1962.787652] ? ftrace_int3_handler+0x70/0x70 [ 1962.787652] ? wait_for_completion+0x260/0x260 [ 1962.787652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1962.787652] ? arch_ftrace_update_code+0x22/0x40 [ 1962.787652] ? ftrace_run_update_code+0x2b/0xd0 [ 1962.787652] ? ftrace_startup_enable+0x3a/0x70 [ 1962.787652] ? ftrace_startup+0x162/0x200 [ 1962.787652] ? register_ftrace_graph+0x658/0x6b0 [ 1962.787652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1962.787652] ? trace_selftest_startup_function+0x91f/0x91f [ 1962.787652] ? find_next_bit+0xba/0xd0 [ 1962.787652] ? run_tracer_selftest+0x285/0x382 [ 1962.787652] ? init_graph_tracefs+0x49/0x49 [ 1962.787652] ? register_tracer+0x290/0x3f8 [ 1962.787652] ? init_graph_trace+0xac/0xb4 [ 1962.787652] ? do_one_initcall+0x101/0x64a [ 1962.787652] ? perf_trace_initcall_level+0x280/0x280 [ 1962.787652] ? __lock_is_held+0x38/0xd0 [ 1962.787652] ? check_flags+0x250/0x250 [ 1962.787652] ? kernel_init_freeable+0x4a6/0x58c [ 1962.787652] ? rest_init+0x44d/0x44d [ 1962.787652] ? kernel_init+0x11/0x1e3 [ 1962.787652] ? rest_init+0x44d/0x44d [ 1962.787652] ? ret_from_fork+0x3a/0x50 [ 1962.787652] rcu: rcu_sched kthread starved for 416107 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 1962.787652] rcu: RCU grace-period kthread stack dump: [ 1962.787652] rcu_sched R running task 30600 10 2 0x80000000 [ 1962.787652] Call Trace: [ 1962.787652] ? __schedule+0x6af/0x1160 [ 1962.787652] ? firmware_map_remove+0x115/0x115 [ 1962.787652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1962.787652] schedule+0x46/0xc0 [ 1962.787652] schedule_timeout+0x476/0xd00 [ 1962.787652] ? mark_held_locks+0x23/0xb0 [ 1962.787652] ? usleep_range+0x120/0x120 [ 1962.787652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1962.787652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1962.787652] ? trace_hardirqs_on+0x33/0x270 [ 1962.787652] ? __next_timer_interrupt+0x190/0x190 [ 1962.787652] ? prepare_to_swait_exclusive+0x110/0x110 [ 1962.787652] rcu_gp_kthread+0x8e8/0x14b0 [ 1962.787652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1962.787652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 1962.787652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 1962.787652] ? trace_hardirqs_on+0x33/0x270 [ 1962.787652] ? __kthread_parkme+0xdb/0x100 [ 1962.787652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 1962.787652] kthread+0x202/0x230 [ 1962.787652] ? kthread_unpark+0xf0/0xf0 [ 1962.787652] ret_from_fork+0x3a/0x50 [ 1987.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] [ 1987.859652] Modules linked in: [ 1987.859652] irq event stamp: 20196522 [ 1987.859652] hardirqs last enabled at (20196521): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1987.859652] hardirqs last disabled at (20196522): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1987.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 1987.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 1987.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 1987.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 1987.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 1987.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 1987.859652] RSP: 0018:ffff88800f11faa0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 1987.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 1987.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000206 [ 1987.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 1987.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 1987.859652] R13: ffff88800f11faf0 R14: 0000000000000206 R15: ffff8880a38b2588 [ 1987.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 1987.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1987.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 1987.859652] Call Trace: [ 1987.859652] ? ftrace_write+0x3d/0x60 [ 1987.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 1987.859652] ? function_graph_enter+0x370/0x370 [ 1987.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 1987.859652] ? ftrace_replace_code+0x2d0/0x350 [ 1987.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 1987.859652] return_to_handler+0x15/0x36 [ 1987.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 1987.859652] ? ftrace_write+0x3d/0x60 [ 1987.859652] ? ftrace_replace_code+0x2fb/0x350 [ 1987.859652] ? ftrace_int3_handler+0x70/0x70 [ 1987.859652] ? wait_for_completion+0x260/0x260 [ 1987.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 1987.859652] ? arch_ftrace_update_code+0x22/0x40 [ 1987.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 1987.859652] ? ftrace_startup_enable+0x3a/0x70 [ 1987.859652] ? ftrace_startup+0x162/0x200 [ 1987.859652] ? register_ftrace_graph+0x658/0x6b0 [ 1987.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 1987.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 1987.859652] ? find_next_bit+0xba/0xd0 [ 1987.859652] ? run_tracer_selftest+0x285/0x382 [ 1987.859652] ? init_graph_tracefs+0x49/0x49 [ 1987.859652] ? register_tracer+0x290/0x3f8 [ 1987.859652] ? init_graph_trace+0xac/0xb4 [ 1987.859652] ? do_one_initcall+0x101/0x64a [ 1987.859652] ? perf_trace_initcall_level+0x280/0x280 [ 1987.859652] ? __lock_is_held+0x38/0xd0 [ 1987.859652] ? check_flags+0x250/0x250 [ 1987.859652] ? kernel_init_freeable+0x4a6/0x58c [ 1987.859652] ? rest_init+0x44d/0x44d [ 1987.859652] ? kernel_init+0x11/0x1e3 [ 1987.859652] ? rest_init+0x44d/0x44d [ 1987.859652] ? ret_from_fork+0x3a/0x50 [ 2015.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 2015.859652] Modules linked in: [ 2015.859652] irq event stamp: 20210532 [ 2015.859652] hardirqs last enabled at (20210531): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 2015.859652] hardirqs last disabled at (20210532): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 2015.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 2015.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 2015.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 2015.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 2015.859652] RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 [ 2015.859652] Code: 49 29 df eb bf bb ea ff ff ff eb da 90 90 48 8b 34 24 65 48 8b 04 25 00 ff 01 00 65 8b 15 6c b5 c9 7e 81 e2 00 01 1f 00 75 2b <8b> 90 60 25 00 00 83 fa 02 75 20 48 8b 88 68 25 00 00 8b 80 64 25 [ 2015.859652] RSP: 0018:ffff88800f11fae8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 2015.859652] RAX: ffff88800f111000 RBX: ffffffff8490b020 RCX: ffffffff816ee30c [ 2015.859652] RDX: 0000000000000000 RSI: ffffffff816ee445 RDI: 0000000000000007 [ 2015.859652] RBP: 0000000000000001 R08: ffff88800f111000 R09: 0000000000000000 [ 2015.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffea00001242c0 [ 2015.859652] R13: 0000000000000001 R14: ffffffff8490b021 R15: 0000000000000000 [ 2015.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 2015.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2015.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 2015.859652] Call Trace: [ 2015.859652] __check_object_size+0x315/0x752 [ 2015.859652] __probe_kernel_write+0xa0/0x120 [ 2015.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 2015.859652] ftrace_write+0x22/0x60 [ 2015.859652] ftrace_replace_code+0x2fb/0x350 [ 2015.859652] ? ftrace_int3_handler+0x70/0x70 [ 2015.859652] ? wait_for_completion+0x260/0x260 [ 2015.859652] ftrace_modify_all_code+0x141/0x2b0 [ 2015.859652] arch_ftrace_update_code+0x22/0x40 [ 2015.859652] ftrace_run_update_code+0x2b/0xd0 [ 2015.859652] ftrace_startup_enable+0x3a/0x70 [ 2015.859652] ftrace_startup+0x162/0x200 [ 2015.859652] register_ftrace_graph+0x658/0x6b0 [ 2015.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 2015.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 2015.859652] ? find_next_bit+0xba/0xd0 [ 2015.859652] run_tracer_selftest+0x285/0x382 [ 2015.859652] ? init_graph_tracefs+0x49/0x49 [ 2015.859652] register_tracer+0x290/0x3f8 [ 2015.859652] init_graph_trace+0xac/0xb4 [ 2015.859652] do_one_initcall+0x101/0x64a [ 2015.859652] ? perf_trace_initcall_level+0x280/0x280 [ 2015.859652] ? __lock_is_held+0x38/0xd0 [ 2015.859652] ? check_flags+0x250/0x250 [ 2015.859652] kernel_init_freeable+0x4a6/0x58c [ 2015.859652] ? rest_init+0x44d/0x44d [ 2015.859652] kernel_init+0x11/0x1e3 [ 2015.859652] ? rest_init+0x44d/0x44d [ 2015.859652] ret_from_fork+0x3a/0x50 [ 2040.807652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 2040.807652] rcu: (detected by 0, t=435612 jiffies, g=-1115, q=2) [ 2040.807652] rcu: All QSes seen, last rcu_sched kthread activity 435612 (4295396960-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 2040.807652] swapper/0 R running task 28008 1 0 0x80000008 [ 2040.807652] Call Trace: [ 2040.807652] [ 2040.807652] ? ftrace_graph_caller+0xa0/0xa0 [ 2040.807652] sched_show_task+0x28f/0x310 [ 2040.807652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 2040.807652] ? ftrace_graph_caller+0xa0/0xa0 [ 2040.807652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 2040.807652] ? ftrace_graph_caller+0xa0/0xa0 [ 2040.807652] update_process_times+0x2d/0x70 [ 2040.807652] ? ftrace_graph_caller+0xa0/0xa0 [ 2040.807652] tick_periodic+0x5c/0x110 [ 2040.807652] tick_handle_periodic+0x30/0xd0 [ 2040.807652] smp_apic_timer_interrupt+0xb7/0x360 [ 2040.807652] apic_timer_interrupt+0xf/0x20 [ 2040.807652] [ 2040.807652] RIP: 0010:native_sched_clock+0x7a/0x100 [ 2040.807652] Code: c1 e6 04 65 48 8b 5c 30 08 48 89 ce 48 c1 e6 04 65 8b 34 30 48 c1 e1 04 65 8b 4c 08 04 65 44 8b 05 cb c5 19 7f 44 39 c7 75 c6 <41> 89 f5 4c 89 f0 49 f7 e5 49 89 c5 49 89 d6 83 f9 7f 0f 87 cb 1b [ 2040.807652] RSP: 0018:ffff88800f11f9b0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 2040.807652] RAX: 00000000002191c0 RBX: ffffffffbf3391a8 RCX: 000000000000001f [ 2040.807652] RDX: 0000076eee880ac1 RSI: 000000002497beeb RDI: 0000000000000002 [ 2040.807652] RBP: ffff88800f11fa00 R08: 0000000000000002 R09: ffffed1001e226a9 [ 2040.807652] R10: ffffed1001e226a9 R11: ffff88800f11354b R12: 1ffff11001e23f44 [ 2040.807652] R13: ffffffff816ee1d4 R14: 0000076eee880ac1 R15: ffff8880a38b2588 [ 2040.807652] ? __check_object_size+0xa4/0x752 [ 2040.807652] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2040.807652] ? __check_object_size+0xa4/0x752 [ 2040.807652] sched_clock+0x1b/0x30 [ 2040.807652] trace_clock_local+0x1c/0x40 [ 2040.807652] ftrace_return_to_handler+0x1dd/0x2f0 [ 2040.807652] ? function_graph_enter+0x370/0x370 [ 2040.807652] ? __phys_addr+0x120/0x120 [ 2040.807652] ? __virt_addr_valid+0x166/0x1df [ 2040.807652] return_to_handler+0x15/0x36 [ 2040.807652] ? ftrace_graph_caller+0xa0/0xa0 [ 2040.807652] ? __check_object_size+0xa4/0x752 [ 2040.807652] ? __probe_kernel_write+0x90/0x120 [ 2040.807652] ? __probe_kernel_write+0xa0/0x120 [ 2040.807652] ? ftrace_regs_caller_end+0x14/0x14 [ 2040.807652] ? ftrace_write+0x22/0x60 [ 2040.807652] ? ftrace_replace_code+0x2fb/0x350 [ 2040.807652] ? ftrace_int3_handler+0x70/0x70 [ 2040.807652] ? wait_for_completion+0x260/0x260 [ 2040.807652] ? ftrace_modify_all_code+0x141/0x2b0 [ 2040.807652] ? arch_ftrace_update_code+0x22/0x40 [ 2040.807652] ? ftrace_run_update_code+0x2b/0xd0 [ 2040.807652] ? ftrace_startup_enable+0x3a/0x70 [ 2040.807652] ? ftrace_startup+0x162/0x200 [ 2040.807652] ? register_ftrace_graph+0x658/0x6b0 [ 2040.807652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 2040.807652] ? trace_selftest_startup_function+0x91f/0x91f [ 2040.807652] ? find_next_bit+0xba/0xd0 [ 2040.807652] ? run_tracer_selftest+0x285/0x382 [ 2040.807652] ? init_graph_tracefs+0x49/0x49 [ 2040.807652] ? register_tracer+0x290/0x3f8 [ 2040.807652] ? init_graph_trace+0xac/0xb4 [ 2040.807652] ? do_one_initcall+0x101/0x64a [ 2040.807652] ? perf_trace_initcall_level+0x280/0x280 [ 2040.807652] ? __lock_is_held+0x38/0xd0 [ 2040.807652] ? check_flags+0x250/0x250 [ 2040.807652] ? kernel_init_freeable+0x4a6/0x58c [ 2040.807652] ? rest_init+0x44d/0x44d [ 2040.807652] ? kernel_init+0x11/0x1e3 [ 2040.807652] ? rest_init+0x44d/0x44d [ 2040.807652] ? ret_from_fork+0x3a/0x50 [ 2040.807652] rcu: rcu_sched kthread starved for 435612 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 2040.807652] rcu: RCU grace-period kthread stack dump: [ 2040.807652] rcu_sched R running task 30600 10 2 0x80000000 [ 2040.807652] Call Trace: [ 2040.807652] ? __schedule+0x6af/0x1160 [ 2040.807652] ? firmware_map_remove+0x115/0x115 [ 2040.807652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 2040.807652] schedule+0x46/0xc0 [ 2040.807652] schedule_timeout+0x476/0xd00 [ 2040.807652] ? mark_held_locks+0x23/0xb0 [ 2040.807652] ? usleep_range+0x120/0x120 [ 2040.807652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 2040.807652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 2040.807652] ? trace_hardirqs_on+0x33/0x270 [ 2040.807652] ? __next_timer_interrupt+0x190/0x190 [ 2040.807652] ? prepare_to_swait_exclusive+0x110/0x110 [ 2040.807652] rcu_gp_kthread+0x8e8/0x14b0 [ 2040.807652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 2040.807652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 2040.807652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 2040.807652] ? trace_hardirqs_on+0x33/0x270 [ 2040.807652] ? __kthread_parkme+0xdb/0x100 [ 2040.807652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 2040.807652] kthread+0x202/0x230 [ 2040.807652] ? kthread_unpark+0xf0/0xf0 [ 2040.807652] ret_from_fork+0x3a/0x50 [ 2067.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 2067.859652] Modules linked in: [ 2067.859652] irq event stamp: 20236588 [ 2067.859652] hardirqs last enabled at (20236587): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 2067.859652] hardirqs last disabled at (20236588): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 2067.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 2067.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 2067.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 2067.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 2067.859652] RIP: 0010:ftrace_graph_caller+0x62/0xa0 [ 2067.859652] Code: 00 00 48 8b bc 24 a8 00 00 00 48 89 bc 24 80 00 00 00 48 83 ef 05 48 8d b4 24 b0 00 00 00 48 c7 c2 00 00 00 00 e8 7e f6 ae fe <4c> 8b 4c 24 40 4c 8b 44 24 48 48 8b 7c 24 70 48 8b 74 24 68 48 8b [ 2067.859652] RSP: 0018:ffff88800f11fa38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 2067.859652] RAX: 0000000000000000 RBX: ffffffff8490b020 RCX: 0000000000000000 [ 2067.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000206 [ 2067.859652] RBP: 0000000000000001 R08: ffffed1014704706 R09: 0000000000000000 [ 2067.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888001000000 [ 2067.859652] R13: ffffffff81000000 R14: ffffffff8490b021 R15: ffffffff8490b020 [ 2067.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 2067.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2067.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 2067.859652] Call Trace: [ 2067.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 2067.859652] ? __check_object_size+0x299/0x752 [ 2067.859652] ? __check_object_size+0x2a7/0x752 [ 2067.859652] ? __phys_addr_symbol+0x5/0x60 [ 2067.859652] ? return_to_handler+0x15/0x36 [ 2067.859652] __phys_addr_symbol+0x5/0x60 [ 2067.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 2067.859652] __check_object_size+0x2b3/0x752 [ 2067.859652] __probe_kernel_write+0xa0/0x120 [ 2067.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 2067.859652] ftrace_write+0x22/0x60 [ 2067.859652] ftrace_replace_code+0x2fb/0x350 [ 2067.859652] ? ftrace_int3_handler+0x70/0x70 [ 2067.859652] ? wait_for_completion+0x260/0x260 [ 2067.859652] ftrace_modify_all_code+0x141/0x2b0 [ 2067.859652] arch_ftrace_update_code+0x22/0x40 [ 2067.859652] ftrace_run_update_code+0x2b/0xd0 [ 2067.859652] ftrace_startup_enable+0x3a/0x70 [ 2067.859652] ftrace_startup+0x162/0x200 [ 2067.859652] register_ftrace_graph+0x658/0x6b0 [ 2067.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 2067.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 2067.859652] ? find_next_bit+0xba/0xd0 [ 2067.859652] run_tracer_selftest+0x285/0x382 [ 2067.859652] ? init_graph_tracefs+0x49/0x49 [ 2067.859652] register_tracer+0x290/0x3f8 [ 2067.859652] init_graph_trace+0xac/0xb4 [ 2067.859652] do_one_initcall+0x101/0x64a [ 2067.859652] ? perf_trace_initcall_level+0x280/0x280 [ 2067.859652] ? __lock_is_held+0x38/0xd0 [ 2067.859652] ? check_flags+0x250/0x250 [ 2067.859652] kernel_init_freeable+0x4a6/0x58c [ 2067.859652] ? rest_init+0x44d/0x44d [ 2067.859652] kernel_init+0x11/0x1e3 [ 2067.859652] ? rest_init+0x44d/0x44d [ 2067.859652] ret_from_fork+0x3a/0x50 [ 2095.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 2095.859652] Modules linked in: [ 2095.859652] irq event stamp: 20250608 [ 2095.859652] hardirqs last enabled at (20250607): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 2095.859652] hardirqs last disabled at (20250608): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 2095.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 2095.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 2095.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 2095.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 2095.859652] RIP: 0010:trace_graph_entry+0x6e9/0x840 [ 2095.859652] Code: 42 ff ff 48 c7 c7 10 10 37 83 e8 42 8a 26 00 48 83 3d 5a f4 f5 01 00 0f 84 fc 00 00 00 48 83 05 5c 8e 1d 04 01 4c 89 ff 57 9d <66> 66 90 66 90 48 83 05 6a 8e 1d 04 01 e9 4c f9 ff ff 4c 89 ff 48 [ 2095.859652] RSP: 0018:ffff88800f11f908 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 2095.859652] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81411bae [ 2095.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000202 [ 2095.859652] RBP: ffff88800f11f988 R08: ffffed1014704706 R09: 0000000000000000 [ 2095.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a3823828 [ 2095.859652] R13: ffffffff835cc960 R14: ffffffff835cc988 R15: 0000000000000202 [ 2095.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 2095.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2095.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 2095.859652] Call Trace: [ 2095.859652] trace_graph_entry_watchdog+0x23/0xc0 [ 2095.859652] function_graph_enter+0x275/0x370 [ 2095.859652] ? ftrace_graph_stop+0x10/0x10 [ 2095.859652] ? retint_kernel+0x10/0x10 [ 2095.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 2095.859652] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 2095.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 2095.859652] ? __check_object_size+0x274/0x752 [ 2095.859652] prepare_ftrace_return+0x7b/0xa0 [ 2095.859652] ? 0xffffffff81000000 [ 2095.859652] ftrace_graph_caller+0x62/0xa0 [ 2095.859652] ? check_stack_object+0x2b/0x90 [ 2095.859652] ? __check_object_size+0x245/0x752 [ 2095.859652] ? __check_object_size+0x268/0x752 [ 2095.859652] ? 0xffffffff81000000 [ 2095.859652] ? __phys_addr_symbol+0x5/0x60 [ 2095.859652] __phys_addr_symbol+0x5/0x60 [ 2095.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 2095.859652] __check_object_size+0x274/0x752 [ 2095.859652] __probe_kernel_write+0xa0/0x120 [ 2095.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 2095.859652] ftrace_write+0x22/0x60 [ 2095.859652] ftrace_replace_code+0x2fb/0x350 [ 2095.859652] ? ftrace_int3_handler+0x70/0x70 [ 2095.859652] ? wait_for_completion+0x260/0x260 [ 2095.859652] ftrace_modify_all_code+0x141/0x2b0 [ 2095.859652] arch_ftrace_update_code+0x22/0x40 [ 2095.859652] ftrace_run_update_code+0x2b/0xd0 [ 2095.859652] ftrace_startup_enable+0x3a/0x70 [ 2095.859652] ftrace_startup+0x162/0x200 [ 2095.859652] register_ftrace_graph+0x658/0x6b0 [ 2095.859652] trace_selftest_startup_function_graph+0xe4/0x238 [ 2095.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 2095.859652] ? find_next_bit+0xba/0xd0 [ 2095.859652] run_tracer_selftest+0x285/0x382 [ 2095.859652] ? init_graph_tracefs+0x49/0x49 [ 2095.859652] register_tracer+0x290/0x3f8 [ 2095.859652] init_graph_trace+0xac/0xb4 [ 2095.859652] do_one_initcall+0x101/0x64a [ 2095.859652] ? perf_trace_initcall_level+0x280/0x280 [ 2095.859652] ? __lock_is_held+0x38/0xd0 [ 2095.859652] ? check_flags+0x250/0x250 [ 2095.859652] kernel_init_freeable+0x4a6/0x58c [ 2095.859652] ? rest_init+0x44d/0x44d [ 2095.859652] kernel_init+0x11/0x1e3 [ 2095.859652] ? rest_init+0x44d/0x44d [ 2095.859652] ret_from_fork+0x3a/0x50 [ 2118.827652] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 2118.827652] rcu: (detected by 0, t=455117 jiffies, g=-1115, q=2) [ 2118.827652] rcu: All QSes seen, last rcu_sched kthread activity 455117 (4295416465-4294961348), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 2118.827652] swapper/0 R running task 28008 1 0 0x80000008 [ 2118.827652] Call Trace: [ 2118.827652] [ 2118.827652] ? ftrace_graph_caller+0xa0/0xa0 [ 2118.827652] sched_show_task+0x28f/0x310 [ 2118.827652] ? trace_event_raw_event_sched_process_exec+0x1f0/0x1f0 [ 2118.827652] ? ftrace_graph_caller+0xa0/0xa0 [ 2118.827652] rcu_check_callbacks.cold.71+0x53a/0x540 [ 2118.827652] ? ftrace_graph_caller+0xa0/0xa0 [ 2118.827652] update_process_times+0x2d/0x70 [ 2118.827652] ? ftrace_graph_caller+0xa0/0xa0 [ 2118.827652] tick_periodic+0x5c/0x110 [ 2118.827652] tick_handle_periodic+0x30/0xd0 [ 2118.827652] smp_apic_timer_interrupt+0xb7/0x360 [ 2118.827652] apic_timer_interrupt+0xf/0x20 [ 2118.827652] [ 2118.827652] RIP: 0010:trace_graph_return+0xbd/0x410 [ 2118.827652] Code: 01 00 48 8d ab 58 25 00 00 48 89 ef e8 0c 87 26 00 f6 83 5a 25 00 00 02 0f 85 b2 01 00 00 48 c7 c7 08 10 37 83 e8 f3 86 26 00 <48> 83 3d 03 f1 f5 01 00 0f 84 53 02 00 00 48 83 05 cd 8c 1d 04 01 [ 2118.827652] RSP: 0018:ffff88800f11f9f0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 2118.827652] RAX: 0000000000000000 RBX: ffff88800f111000 RCX: ffffffff81411efd [ 2118.827652] RDX: dffffc0000000000 RSI: 000000002497beeb RDI: ffffffff83371008 [ 2118.827652] RBP: ffff88800f113558 R08: 0000000000000002 R09: ffffed1001e226a9 [ 2118.827652] R10: ffffed1001e226a9 R11: ffff88800f11354b R12: ffffffff835cc960 [ 2118.827652] R13: ffff88800f11fa40 R14: ffff88800f113538 R15: ffff8880a38b2588 [ 2118.827652] ? trace_graph_return+0xbd/0x410 [ 2118.827652] ? __check_object_size+0xa4/0x752 [ 2118.827652] ftrace_return_to_handler+0x1fb/0x2f0 [ 2118.827652] ? function_graph_enter+0x370/0x370 [ 2118.827652] ? __phys_addr+0x120/0x120 [ 2118.827652] ? __virt_addr_valid+0x166/0x1df [ 2118.827652] return_to_handler+0x15/0x36 [ 2118.827652] ? ftrace_graph_caller+0xa0/0xa0 [ 2118.827652] ? __check_object_size+0xa4/0x752 [ 2118.827652] ? __probe_kernel_write+0x90/0x120 [ 2118.827652] ? __probe_kernel_write+0xa0/0x120 [ 2118.827652] ? ftrace_regs_caller_end+0x14/0x14 [ 2118.827652] ? ftrace_write+0x22/0x60 [ 2118.827652] ? ftrace_replace_code+0x2fb/0x350 [ 2118.827652] ? ftrace_int3_handler+0x70/0x70 [ 2118.827652] ? wait_for_completion+0x260/0x260 [ 2118.827652] ? ftrace_modify_all_code+0x141/0x2b0 [ 2118.827652] ? arch_ftrace_update_code+0x22/0x40 [ 2118.827652] ? ftrace_run_update_code+0x2b/0xd0 [ 2118.827652] ? ftrace_startup_enable+0x3a/0x70 [ 2118.827652] ? ftrace_startup+0x162/0x200 [ 2118.827652] ? register_ftrace_graph+0x658/0x6b0 [ 2118.827652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 2118.827652] ? trace_selftest_startup_function+0x91f/0x91f [ 2118.827652] ? find_next_bit+0xba/0xd0 [ 2118.827652] ? run_tracer_selftest+0x285/0x382 [ 2118.827652] ? init_graph_tracefs+0x49/0x49 [ 2118.827652] ? register_tracer+0x290/0x3f8 [ 2118.827652] ? init_graph_trace+0xac/0xb4 [ 2118.827652] ? do_one_initcall+0x101/0x64a [ 2118.827652] ? perf_trace_initcall_level+0x280/0x280 [ 2118.827652] ? __lock_is_held+0x38/0xd0 [ 2118.827652] ? check_flags+0x250/0x250 [ 2118.827652] ? kernel_init_freeable+0x4a6/0x58c [ 2118.827652] ? rest_init+0x44d/0x44d [ 2118.827652] ? kernel_init+0x11/0x1e3 [ 2118.827652] ? rest_init+0x44d/0x44d [ 2118.827652] ? ret_from_fork+0x3a/0x50 [ 2118.827652] rcu: rcu_sched kthread starved for 455117 jiffies! g-1115 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 2118.827652] rcu: RCU grace-period kthread stack dump: [ 2118.827652] rcu_sched R running task 30600 10 2 0x80000000 [ 2118.827652] Call Trace: [ 2118.827652] ? __schedule+0x6af/0x1160 [ 2118.827652] ? firmware_map_remove+0x115/0x115 [ 2118.827652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 2118.827652] schedule+0x46/0xc0 [ 2118.827652] schedule_timeout+0x476/0xd00 [ 2118.827652] ? mark_held_locks+0x23/0xb0 [ 2118.827652] ? usleep_range+0x120/0x120 [ 2118.827652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 2118.827652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 2118.827652] ? trace_hardirqs_on+0x33/0x270 [ 2118.827652] ? __next_timer_interrupt+0x190/0x190 [ 2118.827652] ? prepare_to_swait_exclusive+0x110/0x110 [ 2118.827652] rcu_gp_kthread+0x8e8/0x14b0 [ 2118.827652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 2118.827652] ? lockdep_hardirqs_on+0x1ee/0x300 [ 2118.827652] ? _raw_spin_unlock_irqrestore+0x61/0xa0 [ 2118.827652] ? trace_hardirqs_on+0x33/0x270 [ 2118.827652] ? __kthread_parkme+0xdb/0x100 [ 2118.827652] ? rcu_bind_current_to_nocb+0x70/0x70 [ 2118.827652] kthread+0x202/0x230 [ 2118.827652] ? kthread_unpark+0xf0/0xf0 [ 2118.827652] ret_from_fork+0x3a/0x50 [ 2143.859652] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 2143.859652] Modules linked in: [ 2143.859652] irq event stamp: 20274642 [ 2143.859652] hardirqs last enabled at (20274641): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 2143.859652] hardirqs last disabled at (20274642): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 2143.859652] softirqs last enabled at (19329218): [] return_to_handler+0x0/0x36 [ 2143.859652] softirqs last disabled at (19329161): [] irq_exit+0x10a/0x140 [ 2143.859652] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc6-next-20181213-00016-g8fab15841fd3-dirty #3 [ 2143.859652] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 2143.859652] RIP: 0010:trace_graph_return+0x308/0x410 [ 2143.859652] Code: 3d ff ff 48 c7 c7 10 10 37 83 e8 c3 84 26 00 48 83 3d db ee f5 01 00 0f 84 ad 00 00 00 48 83 05 8d 8b 1d 04 01 4c 89 f7 57 9d <66> 66 90 66 90 48 83 05 9b 8b 1d 04 01 5b 5d 41 5c 41 5d 41 5e c3 [ 2143.859652] RSP: 0018:ffff88800f11faa0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 2143.859652] RAX: 0000000000000000 RBX: ffff8880a3823828 RCX: ffffffff8141212d [ 2143.859652] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: 0000000000000206 [ 2143.859652] RBP: 0000000000000000 R08: ffffed1014704706 R09: 0000000000000000 [ 2143.859652] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff835cc960 [ 2143.859652] R13: ffff88800f11faf0 R14: 0000000000000206 R15: ffff8880a38b2588 [ 2143.859652] FS: 0000000000000000(0000) GS:ffff8880a3600000(0000) knlGS:0000000000000000 [ 2143.859652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2143.859652] CR2: 0000000000000000 CR3: 000000000322e000 CR4: 00000000000006f0 [ 2143.859652] Call Trace: [ 2143.859652] ? ftrace_write+0x3d/0x60 [ 2143.859652] ftrace_return_to_handler+0x1fb/0x2f0 [ 2143.859652] ? function_graph_enter+0x370/0x370 [ 2143.859652] ? pmd_set_huge.cold.11+0x73/0x73 [ 2143.859652] ? __phys_addr_symbol+0x23/0x60 [ 2143.859652] ? ftrace_regs_caller_end+0x14/0x14 [ 2143.859652] return_to_handler+0x15/0x36 [ 2143.859652] ? ftrace_graph_caller+0xa0/0xa0 [ 2143.859652] ? ftrace_write+0x3d/0x60 [ 2143.859652] ? ftrace_replace_code+0x2fb/0x350 [ 2143.859652] ? ftrace_int3_handler+0x70/0x70 [ 2143.859652] ? wait_for_completion+0x260/0x260 [ 2143.859652] ? ftrace_modify_all_code+0x141/0x2b0 [ 2143.859652] ? arch_ftrace_update_code+0x22/0x40 [ 2143.859652] ? ftrace_run_update_code+0x2b/0xd0 [ 2143.859652] ? ftrace_startup_enable+0x3a/0x70 [ 2143.859652] ? ftrace_startup+0x162/0x200 [ 2143.859652] ? register_ftrace_graph+0x658/0x6b0 [ 2143.859652] ? trace_selftest_startup_function_graph+0xe4/0x238 [ 2143.859652] ? trace_selftest_startup_function+0x91f/0x91f [ 2143.859652] ? find_next_bit+0xba/0xd0 [ 2143.859652] ? run_tracer_selftest+0x285/0x382 [ 2143.859652] ? init_graph_tracefs+0x49/0x49 [ 2143.859652] ? register_tracer+0x290/0x3f8 [ 2143.859652] ? init_graph_trace+0xac/0xb4 [ 2143.859652] ? do_one_initcall+0x101/0x64a [ 2143.859652] ? perf_trace_initcall_level+0x280/0x280 [ 2143.859652] ? __lock_is_held+0x38/0xd0 [ 2143.859652] ? check_flags+0x250/0x250 [ 2143.859652] ? kernel_init_freeable+0x4a6/0x58c [ 2143.859652] ? rest_init+0x44d/0x44d [ 2143.859652] ? kernel_init+0x11/0x1e3 [ 2143.859652] ? rest_init+0x44d/0x44d [ 2143.859652] ? ret_from_fork+0x3a/0x50