[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034] [ 0.000000] Linux version 4.20.0-rc3-next-20181122-00007-g64e3bffc54df-dirty (anders@compilator) (gcc version 7.3.1 20180425 [linaro-7.3-2018.05 revision d29120a424ecfbc167ef90065c0eeb7f91977701] (Linaro GCC 7.3-2018.05)) #40 SMP Mon Nov 26 12:32:49 CET 2018 [ 0.000000] Machine model: linux,dummy-virt [ 0.000000] earlycon: pl11 at MMIO 0x0000000009000000 (options '') [ 0.000000] printk: bootconsole [pl11] enabled [ 0.000000] efi: Getting EFI parameters from FDT: [ 0.000000] efi: UEFI not found. [ 0.000000] cma: Reserved 16 MiB at 0x00000000bf000000 [ 0.000000] NUMA: No NUMA configuration found [ 0.000000] NUMA: Faking a node at [mem 0x0000000040000000-0x00000000bfffffff] [ 0.000000] NUMA: NODE_DATA [mem 0xbefea5c0-0xbefebfff] [ 0.000000] Zone ranges: [ 0.000000] DMA32 [mem 0x0000000040000000-0x00000000bfffffff] [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000040000000-0x00000000bfffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff] [ 0.000000] psci: probing for conduit method from DT. [ 0.000000] psci: PSCIv0.2 detected in firmware. [ 0.000000] psci: Using standard PSCI v0.2 function IDs [ 0.000000] psci: Trusted OS migration not required [ 0.000000] random: get_random_bytes called from start_kernel+0xa8/0x498 with crng_init=0 [ 0.000000] percpu: Embedded 490 pages/cpu @(____ptrval____) s1967960 r8192 d30888 u2007040 [ 0.000000] Detected VIPT I-cache on CPU0 [ 0.000000] CPU features: enabling workaround for ARM erratum 843419 [ 0.000000] CPU features: enabling workaround for ARM erratum 845719 [ 0.000000] CPU features: detected: Kernel page table isolation (KPTI) [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 516096 [ 0.000000] Policy zone: DMA32 [ 0.000000] Kernel command line: root=/dev/root rootfstype=9p rootflags=trans=virtio console=ttyAMA0,38400n8 earlycon=pl011,0x9000000 [ 0.000000] Memory: 997332K/2097152K available (15808K kernel code, 3356K rwdata, 4652K rodata, 4096K init, 21768K bss, 86196K reserved, 16384K cma-reserved) [ 0.000000] random: get_random_u64 called from kmem_cache_open+0x38/0x1d8 with crng_init=0 [ 0.000000] random: get_random_u64 called from cache_random_seq_create+0x64/0x110 with crng_init=0 [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] ftrace: allocating 41388 entries in 162 pages [ 0.000000] Running RCU self tests [ 0.000000] rcu: Hierarchical RCU implementation. [ 0.000000] rcu: RCU event tracing is enabled. [ 0.000000] rcu: RCU lockdep checking is enabled. [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=1. [ 0.000000] rcu: RCU debug extended QS entry/exit. [ 0.000000] Tasks RCU enabled. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies. [ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1 [ 0.000000] kmemleak: Kernel memory leak detector disabled [ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0 [ 0.000000] GICv2m: range[mem 0x08020000-0x08020fff], SPI[80:143] [ 0.000000] arch_timer: cp15 timer(s) running at 62.50MHz (virt). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x1cd42e208c, max_idle_ns: 881590405314 ns [ 0.000180] sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 4398046511096ns [ 0.012831] Console: colour dummy device 80x25 [ 0.013851] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.014261] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.014568] ... MAX_LOCK_DEPTH: 48 [ 0.014876] ... MAX_LOCKDEP_KEYS: 8191 [ 0.015186] ... CLASSHASH_SIZE: 4096 [ 0.015497] ... MAX_LOCKDEP_ENTRIES: 32768 [ 0.015807] ... MAX_LOCKDEP_CHAINS: 65536 [ 0.016109] ... CHAINHASH_SIZE: 32768 [ 0.016445] memory used by lock dependency info: 7775 kB [ 0.017024] per task-struct memory footprint: 2688 bytes [ 0.017398] ------------------------ [ 0.017684] | Locking API testsuite: [ 0.017964] ---------------------------------------------------------------------------- [ 0.018401] | spin |wlock |rlock |mutex | wsem | rsem | [ 0.018793] -------------------------------------------------------------------------- [ 0.019544] A-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 0.029959] A-B-B-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 0.040040] A-B-B-C-C-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 0.050731] A-B-C-A-B-C deadlock: ok | ok | ok | ok | ok | ok | ok | [ 0.061136] A-B-B-C-C-D-D-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 0.072095] A-B-C-D-B-D-D-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 0.083665] A-B-C-D-B-C-D-A deadlock: ok | ok | ok | ok | ok | ok | ok | [ 0.094762] double unlock: ok | ok | ok | ok | ok | ok | ok | [ 0.104307] initialize held: ok | ok | ok | ok | ok | ok | ok | [ 0.113481] -------------------------------------------------------------------------- [ 0.113929] recursive read-lock: | ok | | ok | [ 0.117115] recursive read-lock #2: | ok | | ok | [ 0.120081] mixed read-write-lock: | ok | | ok | [ 0.123285] mixed write-read-lock: | ok | | ok | [ 0.126490] mixed read-lock/lock-write ABBA: |FAILED| | ok | [ 0.129264] mixed read-lock/lock-read ABBA: | ok | | ok | [ 0.132599] mixed write-lock/lock-write ABBA: | ok | | ok | [ 0.135867] -------------------------------------------------------------------------- [ 0.136577] hard-irqs-on + irq-safe-A/12: ok | ok | ok | [ 0.141163] soft-irqs-on + irq-safe-A/12: ok | ok | ok | [ 0.145738] hard-irqs-on + irq-safe-A/21: ok | ok | ok | [ 0.150229] soft-irqs-on + irq-safe-A/21: ok | ok | ok | [ 0.154718] sirq-safe-A => hirqs-on/12: ok | ok | ok | [ 0.159246] sirq-safe-A => hirqs-on/21: ok | ok | ok | [ 0.163805] hard-safe-A + irqs-on/12: ok | ok | ok | [ 0.168304] soft-safe-A + irqs-on/12: ok | ok | ok | [ 0.172810] hard-safe-A + irqs-on/21: ok | ok | ok | [ 0.177370] soft-safe-A + irqs-on/21: ok | ok | ok | [ 0.182035] hard-safe-A + unsafe-B #1/123: ok | ok | ok | [ 0.186843] soft-safe-A + unsafe-B #1/123: ok | ok | ok | [ 0.191541] hard-safe-A + unsafe-B #1/132: ok | ok | ok | [ 0.196250] soft-safe-A + unsafe-B #1/132: ok | ok | ok | [ 0.200955] hard-safe-A + unsafe-B #1/213: ok | ok | ok | [ 0.205635] soft-safe-A + unsafe-B #1/213: ok | ok | ok | [ 0.210307] hard-safe-A + unsafe-B #1/231: ok | ok | ok | [ 0.215084] soft-safe-A + unsafe-B #1/231: ok | ok | ok | [ 0.219868] hard-safe-A + unsafe-B #1/312: ok | ok | ok | [ 0.224545] soft-safe-A + unsafe-B #1/312: ok | ok | ok | [ 0.229167] hard-safe-A + unsafe-B #1/321: ok | ok | ok | [ 0.234524] soft-safe-A + unsafe-B #1/321: ok | ok | ok | [ 0.239211] hard-safe-A + unsafe-B #2/123: ok | ok | ok | [ 0.244071] soft-safe-A + unsafe-B #2/123: ok | ok | ok | [ 0.248911] hard-safe-A + unsafe-B #2/132: ok | ok | ok | [ 0.253677] soft-safe-A + unsafe-B #2/132: ok | ok | ok | [ 0.258493] hard-safe-A + unsafe-B #2/213: ok | ok | ok | [ 0.263253] soft-safe-A + unsafe-B #2/213: ok | ok | ok | [ 0.267960] hard-safe-A + unsafe-B #2/231: ok | ok | ok | [ 0.272786] soft-safe-A + unsafe-B #2/231: ok | ok | ok | [ 0.277563] hard-safe-A + unsafe-B #2/312: ok | ok | ok | [ 0.282292] soft-safe-A + unsafe-B #2/312: ok | ok | ok | [ 0.287196] hard-safe-A + unsafe-B #2/321: ok | ok | ok | [ 0.291937] soft-safe-A + unsafe-B #2/321: ok | ok | ok | [ 0.297030] hard-irq lock-inversion/123: ok | ok | ok | [ 0.301783] soft-irq lock-inversion/123: ok | ok | ok | [ 0.306521] hard-irq lock-inversion/132: ok | ok | ok | [ 0.311331] soft-irq lock-inversion/132: ok | ok | ok | [ 0.316149] hard-irq lock-inversion/213: ok | ok | ok | [ 0.320849] soft-irq lock-inversion/213: ok | ok | ok | [ 0.325569] hard-irq lock-inversion/231: ok | ok | ok | [ 0.330282] soft-irq lock-inversion/231: ok | ok | ok | [ 0.334962] hard-irq lock-inversion/312: ok | ok | ok | [ 0.339669] soft-irq lock-inversion/312: ok | ok | ok | [ 0.344399] hard-irq lock-inversion/321: ok | ok | ok | [ 0.349058] soft-irq lock-inversion/321: ok | ok | ok | [ 0.353770] hard-irq read-recursion/123: ok | [ 0.355526] soft-irq read-recursion/123: ok | [ 0.357596] hard-irq read-recursion/132: ok | [ 0.359380] soft-irq read-recursion/132: ok | [ 0.361417] hard-irq read-recursion/213: ok | [ 0.363249] soft-irq read-recursion/213: ok | [ 0.365061] hard-irq read-recursion/231: ok | [ 0.367135] soft-irq read-recursion/231: ok | [ 0.368924] hard-irq read-recursion/312: ok | [ 0.371034] soft-irq read-recursion/312: ok | [ 0.372823] hard-irq read-recursion/321: ok | [ 0.374896] soft-irq read-recursion/321: ok | [ 0.376680] -------------------------------------------------------------------------- [ 0.377115] | Wound/wait tests | [ 0.377398] --------------------- [ 0.377693] ww api failures: ok | ok | ok | [ 0.383997] ww contexts mixing: ok | ok | [ 0.386974] finishing ww context: ok | ok | ok | ok | [ 0.393234] locking mismatches: ok | ok | ok | [ 0.397669] EDEADLK handling: ok | ok | ok | ok | ok | ok | ok | ok | ok | ok | [ 0.413054] spinlock nest unlocked: ok | [ 0.414693] ----------------------------------------------------- [ 0.415064] |block | try |context| [ 0.415677] ----------------------------------------------------- [ 0.416022] context: ok | ok | ok | [ 0.420700] try: ok | ok | ok | [ 0.425113] block: ok | ok | ok | [ 0.429475] spinlock: ok | ok | ok | [ 0.434182] ------------------------------------------------------- [ 0.434549] Good, all 261 testcases passed! | [ 0.434855] --------------------------------- [ 0.438865] Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=250000) [ 0.439574] pid_max: default: 32768 minimum: 301 [ 0.448093] LSM: Security Framework initializing [ 0.448756] Yama: becoming mindful. [ 0.451072] LoadPin: ready to pin (currently enforcing) [ 0.451756] AppArmor: AppArmor disabled by boot time parameter [ 0.468995] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.474930] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.477283] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes) [ 0.478021] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes) [ 0.505462] *** VALIDATE proc *** [ 0.520254] *** VALIDATE cgroup1 *** [ 0.520714] *** VALIDATE cgroup2 *** [ 0.570973] ASID allocator initialised with 32768 entries [ 0.576128] rcu: Hierarchical SRCU implementation. [ 0.625445] EFI services will not be available. [ 0.643962] smp: Bringing up secondary CPUs ... [ 0.644486] smp: Brought up 1 node, 1 CPU [ 0.644845] SMP: Total of 1 processors activated. [ 0.645296] CPU features: detected: 32-bit EL0 Support [ 0.645750] CPU features: detected: CRC32 instructions [ 0.875400] CPU features: emulated: Privileged Access Never (PAN) using TTBR0_EL1 switching [ 0.876073] CPU: All CPU(s) started at EL1 [ 0.876832] alternatives: patching kernel code [ 1.537245] node 0 initialised, 249310 pages in 4ms [ 1.544223] pgdatinit0 (15) used greatest stack depth: 13408 bytes left [ 1.597650] devtmpfs: initialized [ 1.762467] _warn_unseeded_randomness: 85 callbacks suppressed [ 1.762911] random: get_random_u32 called from shuffle_freelist+0x64/0x218 with crng_init=0 [ 1.767912] Registered cp15_barrier emulation handler [ 2.631924] workqueue: round-robin CPU selection forced, expect performance impact [ 5.395666] DMA-API: preallocated 65536 debug entries [ 5.396074] DMA-API: debugging enabled by kernel config [ 5.396601] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 5.398102] futex hash table entries: 256 (order: 3, 32768 bytes) [ 5.399936] Running postponed tracer tests: [ 5.404112] Testing tracer function: PASSED [ 19.667873] Testing dynamic ftrace: PASSED [ 21.262205] Testing dynamic ftrace ops #1: [ 26.669537] (1 0 1 0 0) [ 26.670029] (1 1 2 0 0) [ 42.210979] (2 1 3 0 4125115) [ 42.216426] (2 2 4 0 4127146) [ 44.293628] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 44.298344] Modules linked in: [ 44.301034] irq event stamp: 530752 [ 44.305611] hardirqs last enabled at (530751): [] _raw_spin_unlock_irqrestore+0x50/0x98 [ 44.310586] hardirqs last disabled at (530752): [] el1_irq+0xa8/0x1c0 [ 44.315251] softirqs last enabled at (530720): [] __do_softirq+0x988/0x9d0 [ 44.320305] softirqs last disabled at (530713): [] irq_exit+0x128/0x1b8 [ 44.325077] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.20.0-rc3-next-20181122-00007-g64e3bffc54df-dirty #40 [ 44.329052] Hardware name: linux,dummy-virt (DT) [ 44.332538] pstate: 20400005 (nzCv daif +PAN -UAO) [ 44.336679] pc : _raw_spin_unlock_irqrestore+0x54/0x98 [ 44.340801] lr : _raw_spin_unlock_irqrestore+0x50/0x98 [ 44.343493] sp : ffffff800804b8d0 [ 44.345951] x29: ffffff800804b8d0 x28: ffffff8009a9c2f8 [ 44.349684] x27: ffffffc0795b9880 x26: 0000000000000001 [ 44.353331] x25: ffffff8009a9a608 x24: 0000000000000001 [ 44.356946] x23: 0000000000000000 x22: ffffff8008263fa4 [ 44.360624] x21: ffffff8008e1c5fc x20: ffffff8009a251f0 [ 44.364271] x19: 0000000000000000 x18: 0000000034f4d91d [ 44.367908] x17: 000000000000002a x16: 0000000000000000 [ 44.371533] x15: 000000000000132b x14: ffffff8009a61628 [ 44.375303] x13: ffffff8009aebca8 x12: ffffff800a444030 [ 44.379049] x11: ffffff800804bb30 x10: ffffff800804bb30 [ 44.382785] x9 : ffffff8009a25208 x8 : ffffff8009d52398 [ 44.386663] x7 : ffffff8008e1c5d0 x6 : ffffffbefe7fefa8 [ 44.390365] x5 : 00000000ae1d16cd x4 : 00000000b6044d77 [ 44.394086] x3 : fffffffffffffe80 x2 : ffffff800a4423b0 [ 44.397834] x1 : 000000000000001a x0 : 000000000003ff22 [ 44.401371] Call trace: [ 44.405060] _raw_spin_unlock_irqrestore+0x54/0x98 [ 44.408631] __aarch64_insn_write+0x5c/0x70 [ 44.412037] aarch64_insn_write+0xc/0x18 [ 44.415660] aarch64_insn_patch_text_nosync+0x20/0x58 [ 44.419312] ftrace_modify_code+0x48/0xb8 [ 44.422892] ftrace_make_nop+0x1a0/0x1e8 [ 44.426582] __ftrace_replace_code+0x9c/0xc0 [ 44.430322] ftrace_replace_code+0x60/0xf0 [ 44.434081] ftrace_modify_all_code+0x40/0xe8 [ 44.437629] arch_ftrace_update_code+0xc/0x18 [ 44.441381] ftrace_run_update_code+0x38/0x50 [ 44.445112] ftrace_shutdown+0x130/0x2d8 [ 44.448895] unregister_ftrace_function+0x34/0x50 [ 44.452570] trace_selftest_ops+0x260/0x334 [ 44.456818] trace_selftest_startup_dynamic_tracing.constprop.4+0x148/0x1b4 [ 44.461359] trace_selftest_startup_function+0x118/0x174 [ 44.465204] run_tracer_selftest+0x13c/0x1f4 [ 44.469105] init_trace_selftests+0x98/0x14c [ 44.472568] do_one_initcall+0x31c/0x6c8 [ 44.476171] do_initcall_level+0x4ac/0x50c [ 44.479768] do_initcalls+0x28/0x40 [ 44.483260] do_basic_setup+0x34/0x3c [ 44.486879] kernel_init_freeable+0x12c/0x1d4 [ 44.490522] kernel_init+0x28/0x140 [ 44.493823] ret_from_fork+0x10/0x18 [ 49.898829] PASSED [ 49.899192] Testing dynamic ftrace ops #2: [ 68.904872] (1 0 1 3956264 0) [ 68.909848] (1 1 2 3958454 0) [ 68.921946] (2 1 3 1 1458) [ 68.927042] (2 2 4 2071 3528) [ 73.111946] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:1] [ 73.112728] Modules linked in: [ 73.113058] irq event stamp: 799906 [ 73.113552] hardirqs last enabled at (799905): [] _raw_spin_unlock_irqrestore+0x50/0x98 [ 73.114057] hardirqs last disabled at (799906): [] el1_irq+0xa8/0x1c0 [ 73.114525] softirqs last enabled at (799840): [] __do_softirq+0x988/0x9d0 [ 73.115012] softirqs last disabled at (799833): [] irq_exit+0x128/0x1b8 [ 73.115596] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc3-next-20181122-00007-g64e3bffc54df-dirty #40 [ 73.116039] Hardware name: linux,dummy-virt (DT) [ 73.116427] pstate: 20400005 (nzCv daif +PAN -UAO) [ 73.116830] pc : _raw_spin_unlock_irqrestore+0x54/0x98 [ 73.117240] lr : _raw_spin_unlock_irqrestore+0x50/0x98 [ 73.117568] sp : ffffff800804b8d0 [ 73.117859] x29: ffffff800804b8d0 x28: ffffff8009a9c2f8 [ 73.118307] x27: ffffffc0795b9880 x26: 0000000000000002 [ 73.118757] x25: ffffff8009a9a608 x24: 0000000000000001 [ 73.119198] x23: 0000000000000000 x22: ffffff8008a0376c [ 73.119626] x21: ffffff8008e1c5fc x20: ffffff8009a251f0 [ 73.120044] x19: 0000000000000000 x18: 0000000034f4d91d [ 73.120467] x17: 000000000000002a x16: 0000000000000000 [ 73.120924] x15: 000000000000136a x14: ffffff8009a61628 [ 73.121337] x13: ffffff8009aece70 x12: 0000000000000002 [ 73.121742] x11: 0000000000000000 x10: ffffff800804bb30 [ 73.122166] x9 : ffffff8009a25208 x8 : ffffff8009d52398 [ 73.122589] x7 : ffffff8008e1c5d0 x6 : ffffffbefe7fe770 [ 73.123010] x5 : 00000000ae1d16cd x4 : 00000000b6044d77 [ 73.123429] x3 : fffffffffffffe80 x2 : ffffff800a4423b0 [ 73.123849] x1 : 000000000000001a x0 : 000000000005f57e [ 73.124266] Call trace: [ 73.124639] _raw_spin_unlock_irqrestore+0x54/0x98 [ 73.125018] __aarch64_insn_write+0x5c/0x70 [ 73.125383] aarch64_insn_write+0xc/0x18 [ 73.125754] aarch64_insn_patch_text_nosync+0x20/0x58 [ 73.126146] ftrace_modify_code+0x48/0xb8 [ 73.126513] ftrace_make_nop+0x1a0/0x1e8 [ 73.126896] __ftrace_replace_code+0x9c/0xc0 [ 73.127282] ftrace_replace_code+0x60/0xf0 [ 73.127664] ftrace_modify_all_code+0x40/0xe8 [ 73.128040] arch_ftrace_update_code+0xc/0x18 [ 73.128425] ftrace_run_update_code+0x38/0x50 [ 73.128809] ftrace_shutdown+0x130/0x2d8 [ 73.129192] unregister_ftrace_function+0x34/0x50 [ 73.129578] trace_selftest_ops+0x298/0x334 [ 73.129992] trace_selftest_startup_dynamic_tracing.constprop.4+0x17c/0x1b4 [ 73.130443] trace_selftest_startup_function+0x118/0x174 [ 73.130843] run_tracer_selftest+0x13c/0x1f4 [ 73.131231] init_trace_selftests+0x98/0x14c [ 73.131608] do_one_initcall+0x31c/0x6c8 [ 73.131972] do_initcall_level+0x4ac/0x50c [ 73.132331] do_initcalls+0x28/0x40 [ 73.132683] do_basic_setup+0x34/0x3c [ 73.133043] kernel_init_freeable+0x12c/0x1d4 [ 73.133445] kernel_init+0x28/0x140 [ 73.133814] ret_from_fork+0x10/0x18 [ 75.028472] PASSED [ 75.028805] Testing ftrace recursion: PASSED [ 76.401076] Testing ftrace recursion safe: PASSED [ 77.774355] Testing ftrace regs(no arch support): PASSED [ 79.150640] Testing tracer nop: PASSED [ 79.151341] Testing tracer irqsoff: PASSED [ 93.950222] Testing tracer function_graph: [ 101.876231] Insufficient stack space to handle exception! [ 101.879810] ESR: 0x96000047 -- DABT (current EL) [ 101.883615] FAR: 0xffffff8008047fe0 [ 101.885676] Task stack: [0xffffff8008048000..0xffffff800804c000] [ 101.888320] IRQ stack: [0xffffff8008000000..0xffffff8008004000] [ 101.891022] Overflow stack: [0xffffffc07ca162a0..0xffffffc07ca172a0] [ 101.894317] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc3-next-20181122-00007-g64e3bffc54df-dirty #40 [ 101.897610] Hardware name: linux,dummy-virt (DT) [ 101.900125] pstate: 80400085 (Nzcv daIf +PAN -UAO) [ 101.902931] pc : hash_contains_ip+0x0/0x288 [ 101.905652] lr : ftrace_ops_test.isra.2+0x4c/0x70 [ 101.907703] sp : ffffff8008048020 [ 101.909557] x29: ffffff8008048020 x28: 0000000000000000 [ 101.912442] x27: 0000000000000000 x26: 0000000000000001 [ 101.915222] x25: ffffff8009a16000 x24: ffffff8009cfde5f [ 101.918238] x23: ffffff80082c9d98 x22: 0000000000000800 [ 101.921054] x21: ffffff80082c9d44 x20: ffffff8009a9a430 [ 101.924076] x19: ffffff8009a15b88 x18: 0000000034f4d91d [ 101.927001] x17: 0000000000000022 x16: 0000000000000000 [ 101.929722] x15: 0000000000001398 x14: ffffff8009a61628 [ 101.932751] x13: ffffff8009aece70 x12: 0000000000000001 [ 101.935673] x11: 0000000000000000 x10: 0000000000008008 [ 101.938580] x9 : ffffff8009a25208 x8 : ffffff8009d52398 [ 101.941367] x7 : ffffff8008e1c5d0 x6 : 0000000000000021 [ 101.944325] x5 : ffffffc03fc1d480 x4 : 0000000000000000 [ 101.947117] x3 : ffffff8008048050 x2 : ffffff80082c9d44 [ 101.950109] x1 : ffffff8008048048 x0 : ffffff80082c9d44 [ 101.953358] Kernel panic - not syncing: kernel stack overflow [ 101.956657] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G L 4.20.0-rc3-next-20181122-00007-g64e3bffc54df-dirty #40 [ 101.960129] Hardware name: linux,dummy-virt (DT) [ 101.962136] Call trace: [ 101.964426] dump_backtrace+0x0/0x1c8 [ 101.966911] show_stack+0x24/0x30 [ 101.969317] __dump_stack+0x24/0x2c [ 101.971892] dump_stack+0xc0/0x114 [ 101.974232] panic+0x234/0x4f4 [ 101.976468] nmi_panic+0x74/0xa0 [ 101.979014] handle_bad_stack+0x148/0x158 [ 101.981423] __bad_stack+0xc0/0xc4 [ 101.983975] hash_contains_ip+0x0/0x288 [ 101.986602] ftrace_ops_no_ops+0x120/0x220 [ 101.989244] ftrace_graph_call+0x0/0xc [ 101.991932] check_kcov_mode.constprop.0+0x18/0x50 [ 101.994802] __sanitizer_cov_trace_pc+0x1c/0x50 [ 101.997501] sched_clock+0x34/0x1e8 [ 101.999849] trace_clock_local+0x40/0x88 [ 102.002395] ring_buffer_lock_reserve+0x448/0x4f8 [ 102.004991] trace_buffer_lock_reserve+0x24/0x58 [ 102.007598] __trace_graph_entry+0x34/0xa8 [ 102.010089] trace_graph_entry+0x36c/0x418 [ 102.012701] trace_graph_entry_watchdog+0x60/0x78 [ 102.015318] prepare_ftrace_return+0x8c/0x100 [ 102.017813] ftrace_graph_caller+0x1c/0x24 [ 102.020393] check_kcov_mode.constprop.0+0x18/0x50 [ 102.023083] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.025570] sched_clock+0x34/0x1e8 [ 102.027871] trace_clock_local+0x40/0x88 [ 102.030405] ftrace_push_return_trace+0x8c/0x1f0 [ 102.033107] prepare_ftrace_return+0xa8/0x100 [ 102.035875] ftrace_graph_caller+0x1c/0x24 [ 102.038639] check_kcov_mode.constprop.0+0x18/0x50 [ 102.041387] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.043991] sched_clock+0x34/0x1e8 [ 102.046492] trace_clock_local+0x40/0x88 [ 102.049213] ftrace_push_return_trace+0x8c/0x1f0 [ 102.052006] prepare_ftrace_return+0xa8/0x100 [ 102.054724] ftrace_graph_caller+0x1c/0x24 [ 102.057388] check_kcov_mode.constprop.0+0x18/0x50 [ 102.060360] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.063057] sched_clock+0x34/0x1e8 [ 102.065390] trace_clock_local+0x40/0x88 [ 102.068154] ftrace_push_return_trace+0x8c/0x1f0 [ 102.070932] prepare_ftrace_return+0xa8/0x100 [ 102.073687] ftrace_graph_caller+0x1c/0x24 [ 102.076424] check_kcov_mode.constprop.0+0x18/0x50 [ 102.079302] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.082021] sched_clock+0x34/0x1e8 [ 102.084500] trace_clock_local+0x40/0x88 [ 102.087196] ftrace_push_return_trace+0x8c/0x1f0 [ 102.089953] prepare_ftrace_return+0xa8/0x100 [ 102.092681] ftrace_graph_caller+0x1c/0x24 [ 102.095448] check_kcov_mode.constprop.0+0x18/0x50 [ 102.098307] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.101007] sched_clock+0x34/0x1e8 [ 102.103394] trace_clock_local+0x40/0x88 [ 102.105893] ftrace_push_return_trace+0x8c/0x1f0 [ 102.108412] prepare_ftrace_return+0xa8/0x100 [ 102.110992] ftrace_graph_caller+0x1c/0x24 [ 102.113572] check_kcov_mode.constprop.0+0x18/0x50 [ 102.116179] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.118633] sched_clock+0x34/0x1e8 [ 102.120977] trace_clock_local+0x40/0x88 [ 102.123474] ftrace_push_return_trace+0x8c/0x1f0 [ 102.126064] prepare_ftrace_return+0xa8/0x100 [ 102.128510] ftrace_graph_caller+0x1c/0x24 [ 102.131113] check_kcov_mode.constprop.0+0x18/0x50 [ 102.133707] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.136203] sched_clock+0x34/0x1e8 [ 102.138582] trace_clock_local+0x40/0x88 [ 102.141225] ftrace_push_return_trace+0x8c/0x1f0 [ 102.143859] prepare_ftrace_return+0xa8/0x100 [ 102.146362] ftrace_graph_caller+0x1c/0x24 [ 102.149009] check_kcov_mode.constprop.0+0x18/0x50 [ 102.151653] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.154195] sched_clock+0x34/0x1e8 [ 102.156536] trace_clock_local+0x40/0x88 [ 102.159003] ftrace_push_return_trace+0x8c/0x1f0 [ 102.161584] prepare_ftrace_return+0xa8/0x100 [ 102.164057] ftrace_graph_caller+0x1c/0x24 [ 102.166712] check_kcov_mode.constprop.0+0x18/0x50 [ 102.169335] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.171832] sched_clock+0x34/0x1e8 [ 102.174110] trace_clock_local+0x40/0x88 [ 102.176705] ftrace_push_return_trace+0x8c/0x1f0 [ 102.179357] prepare_ftrace_return+0xa8/0x100 [ 102.181895] ftrace_graph_caller+0x1c/0x24 [ 102.184571] check_kcov_mode.constprop.0+0x18/0x50 [ 102.187220] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.189838] sched_clock+0x34/0x1e8 [ 102.192197] trace_clock_local+0x40/0x88 [ 102.194730] ftrace_push_return_trace+0x8c/0x1f0 [ 102.197341] prepare_ftrace_return+0xa8/0x100 [ 102.199868] ftrace_graph_caller+0x1c/0x24 [ 102.202526] check_kcov_mode.constprop.0+0x18/0x50 [ 102.205154] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.207602] sched_clock+0x34/0x1e8 [ 102.209936] trace_clock_local+0x40/0x88 [ 102.212570] ftrace_push_return_trace+0x8c/0x1f0 [ 102.215274] prepare_ftrace_return+0xa8/0x100 [ 102.217756] ftrace_graph_caller+0x1c/0x24 [ 102.220329] check_kcov_mode.constprop.0+0x18/0x50 [ 102.223076] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.225549] sched_clock+0x34/0x1e8 [ 102.227918] trace_clock_local+0x40/0x88 [ 102.230413] ftrace_push_return_trace+0x8c/0x1f0 [ 102.233091] prepare_ftrace_return+0xa8/0x100 [ 102.235583] ftrace_graph_caller+0x1c/0x24 [ 102.238208] check_kcov_mode.constprop.0+0x18/0x50 [ 102.240771] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.243303] sched_clock+0x34/0x1e8 [ 102.245573] trace_clock_local+0x40/0x88 [ 102.248137] ftrace_push_return_trace+0x8c/0x1f0 [ 102.250784] prepare_ftrace_return+0xa8/0x100 [ 102.253369] ftrace_graph_caller+0x1c/0x24 [ 102.255980] check_kcov_mode.constprop.0+0x18/0x50 [ 102.258598] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.260999] sched_clock+0x34/0x1e8 [ 102.263318] trace_clock_local+0x40/0x88 [ 102.265821] ftrace_push_return_trace+0x8c/0x1f0 [ 102.268367] prepare_ftrace_return+0xa8/0x100 [ 102.270879] ftrace_graph_caller+0x1c/0x24 [ 102.273479] check_kcov_mode.constprop.0+0x18/0x50 [ 102.276041] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.278545] sched_clock+0x34/0x1e8 [ 102.280728] trace_clock_local+0x40/0x88 [ 102.283285] ftrace_push_return_trace+0x8c/0x1f0 [ 102.285821] prepare_ftrace_return+0xa8/0x100 [ 102.288342] ftrace_graph_caller+0x1c/0x24 [ 102.290849] check_kcov_mode.constprop.0+0x18/0x50 [ 102.293556] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.296096] sched_clock+0x34/0x1e8 [ 102.298382] trace_clock_local+0x40/0x88 [ 102.300825] ftrace_push_return_trace+0x8c/0x1f0 [ 102.303497] prepare_ftrace_return+0xa8/0x100 [ 102.306019] ftrace_graph_caller+0x1c/0x24 [ 102.308596] check_kcov_mode.constprop.0+0x18/0x50 [ 102.311220] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.313610] sched_clock+0x34/0x1e8 [ 102.315806] trace_clock_local+0x40/0x88 [ 102.318300] ftrace_push_return_trace+0x8c/0x1f0 [ 102.320930] prepare_ftrace_return+0xa8/0x100 [ 102.323469] ftrace_graph_caller+0x1c/0x24 [ 102.326046] check_kcov_mode.constprop.0+0x18/0x50 [ 102.328643] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.331073] sched_clock+0x34/0x1e8 [ 102.333332] trace_clock_local+0x40/0x88 [ 102.335928] ftrace_push_return_trace+0x8c/0x1f0 [ 102.338492] prepare_ftrace_return+0xa8/0x100 [ 102.340934] ftrace_graph_caller+0x1c/0x24 [ 102.343493] check_kcov_mode.constprop.0+0x18/0x50 [ 102.346158] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.348605] sched_clock+0x34/0x1e8 [ 102.350890] trace_clock_local+0x40/0x88 [ 102.353406] ftrace_push_return_trace+0x8c/0x1f0 [ 102.355984] prepare_ftrace_return+0xa8/0x100 [ 102.358418] ftrace_graph_caller+0x1c/0x24 [ 102.360996] check_kcov_mode.constprop.0+0x18/0x50 [ 102.363571] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.366058] sched_clock+0x34/0x1e8 [ 102.368384] trace_clock_local+0x40/0x88 [ 102.370895] ftrace_push_return_trace+0x8c/0x1f0 [ 102.373533] prepare_ftrace_return+0xa8/0x100 [ 102.376019] ftrace_graph_caller+0x1c/0x24 [ 102.378618] check_kcov_mode.constprop.0+0x18/0x50 [ 102.381224] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.383641] sched_clock+0x34/0x1e8 [ 102.385933] trace_clock_local+0x40/0x88 [ 102.388416] ftrace_push_return_trace+0x8c/0x1f0 [ 102.391016] prepare_ftrace_return+0xa8/0x100 [ 102.393452] ftrace_graph_caller+0x1c/0x24 [ 102.396051] check_kcov_mode.constprop.0+0x18/0x50 [ 102.398728] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.401221] sched_clock+0x34/0x1e8 [ 102.403458] trace_clock_local+0x40/0x88 [ 102.406017] ftrace_push_return_trace+0x8c/0x1f0 [ 102.408614] prepare_ftrace_return+0xa8/0x100 [ 102.411210] ftrace_graph_caller+0x1c/0x24 [ 102.413731] check_kcov_mode.constprop.0+0x18/0x50 [ 102.416396] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.418885] sched_clock+0x34/0x1e8 [ 102.421127] trace_clock_local+0x40/0x88 [ 102.423578] ftrace_push_return_trace+0x8c/0x1f0 [ 102.426157] prepare_ftrace_return+0xa8/0x100 [ 102.428635] ftrace_graph_caller+0x1c/0x24 [ 102.431214] check_kcov_mode.constprop.0+0x18/0x50 [ 102.433816] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.436305] sched_clock+0x34/0x1e8 [ 102.438621] trace_clock_local+0x40/0x88 [ 102.441065] ftrace_push_return_trace+0x8c/0x1f0 [ 102.443625] prepare_ftrace_return+0xa8/0x100 [ 102.446129] ftrace_graph_caller+0x1c/0x24 [ 102.448711] check_kcov_mode.constprop.0+0x18/0x50 [ 102.451306] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.453705] sched_clock+0x34/0x1e8 [ 102.455909] trace_clock_local+0x40/0x88 [ 102.458446] ftrace_push_return_trace+0x8c/0x1f0 [ 102.461022] prepare_ftrace_return+0xa8/0x100 [ 102.463481] ftrace_graph_caller+0x1c/0x24 [ 102.466051] check_kcov_mode.constprop.0+0x18/0x50 [ 102.468704] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.471194] sched_clock+0x34/0x1e8 [ 102.473479] trace_clock_local+0x40/0x88 [ 102.476015] ftrace_push_return_trace+0x8c/0x1f0 [ 102.478576] prepare_ftrace_return+0xa8/0x100 [ 102.481037] ftrace_graph_caller+0x1c/0x24 [ 102.483560] check_kcov_mode.constprop.0+0x18/0x50 [ 102.486196] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.488616] sched_clock+0x34/0x1e8 [ 102.490864] trace_clock_local+0x40/0x88 [ 102.493427] ftrace_push_return_trace+0x8c/0x1f0 [ 102.496004] prepare_ftrace_return+0xa8/0x100 [ 102.498522] ftrace_graph_caller+0x1c/0x24 [ 102.501129] check_kcov_mode.constprop.0+0x18/0x50 [ 102.503768] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.506178] sched_clock+0x34/0x1e8 [ 102.508421] trace_clock_local+0x40/0x88 [ 102.510898] ftrace_push_return_trace+0x8c/0x1f0 [ 102.513411] prepare_ftrace_return+0xa8/0x100 [ 102.515953] ftrace_graph_caller+0x1c/0x24 [ 102.518481] check_kcov_mode.constprop.0+0x18/0x50 [ 102.521148] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.523620] sched_clock+0x34/0x1e8 [ 102.525874] trace_clock_local+0x40/0x88 [ 102.528337] ftrace_push_return_trace+0x8c/0x1f0 [ 102.530888] prepare_ftrace_return+0xa8/0x100 [ 102.533299] ftrace_graph_caller+0x1c/0x24 [ 102.535889] check_kcov_mode.constprop.0+0x18/0x50 [ 102.538477] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.540932] sched_clock+0x34/0x1e8 [ 102.543258] trace_clock_local+0x40/0x88 [ 102.545717] ftrace_push_return_trace+0x8c/0x1f0 [ 102.548269] prepare_ftrace_return+0xa8/0x100 [ 102.550768] ftrace_graph_caller+0x1c/0x24 [ 102.553335] check_kcov_mode.constprop.0+0x18/0x50 [ 102.555958] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.558364] sched_clock+0x34/0x1e8 [ 102.560639] trace_clock_local+0x40/0x88 [ 102.563120] ftrace_push_return_trace+0x8c/0x1f0 [ 102.565674] prepare_ftrace_return+0xa8/0x100 [ 102.568160] ftrace_graph_caller+0x1c/0x24 [ 102.570765] check_kcov_mode.constprop.0+0x18/0x50 [ 102.573359] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.575817] sched_clock+0x34/0x1e8 [ 102.578037] trace_clock_local+0x40/0x88 [ 102.580598] ftrace_push_return_trace+0x8c/0x1f0 [ 102.583153] prepare_ftrace_return+0xa8/0x100 [ 102.585614] ftrace_graph_caller+0x1c/0x24 [ 102.588214] check_kcov_mode.constprop.0+0x18/0x50 [ 102.590922] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.593427] sched_clock+0x34/0x1e8 [ 102.595713] trace_clock_local+0x40/0x88 [ 102.598224] ftrace_push_return_trace+0x8c/0x1f0 [ 102.600732] prepare_ftrace_return+0xa8/0x100 [ 102.603244] ftrace_graph_caller+0x1c/0x24 [ 102.605736] check_kcov_mode.constprop.0+0x18/0x50 [ 102.608421] __sanitizer_cov_trace_pc+0x1c/0x50 [ 102.610986] __probe_kernel_write+0x118/0x158 [ 102.613430] __aarch64_insn_write+0x48/0x70 [ 102.615778] aarch64_insn_write+0xc/0x18 [ 102.618271] aarch64_insn_patch_text_nosync+0x20/0x58 [ 102.620825] ftrace_modify_code+0x48/0xb8 [ 102.623373] ftrace_modify_graph_caller+0x50/0x78 [ 102.626036] ftrace_enable_ftrace_graph_caller+0x10/0x18 [ 102.628786] ftrace_modify_all_code+0xc0/0xe8 [ 102.631283] arch_ftrace_update_code+0xc/0x18 [ 102.633770] ftrace_run_update_code+0x38/0x50 [ 102.636317] ftrace_startup_enable+0x48/0x58 [ 102.638971] ftrace_startup+0x104/0x140 [ 102.641304] register_ftrace_graph+0xf0/0x128 [ 102.644245] trace_selftest_startup_function_graph+0x98/0x164 [ 102.647058] run_tracer_selftest+0x13c/0x1f4 [ 102.649760] register_tracer+0x134/0x200 [ 102.652377] init_graph_trace+0x74/0x80 [ 102.654721] do_one_initcall+0x31c/0x6c8 [ 102.657222] do_initcall_level+0x4ac/0x50c [ 102.659690] do_initcalls+0x28/0x40 [ 102.661991] do_basic_setup+0x34/0x3c [ 102.664416] kernel_init_freeable+0x12c/0x1d4 [ 102.666865] kernel_init+0x28/0x140 [ 102.669218] ret_from_fork+0x10/0x18 [ 102.673598] ---[ end Kernel panic - not syncing: kernel stack overflow ]---