long read to SH7750_WCR1_A7 (0x000000001f800008) ignored long read to SH7750_WCR2_A7 (0x000000001f80000c) ignored long read to SH7750_WCR3_A7 (0x000000001f800010) ignored long read to SH7750_MCR_A7 (0x000000001f800014) ignored long read to SH7750_MCR_A7 (0x000000001f800014) ignored Linux version 6.12.0-rc7 (tuxmake@tuxmake) (sh4-linux-gnu-gcc (Debian 13.3.0-5) 13.3.0, GNU ld (GNU Binutils for Debian) 2.43.1) #2 @1731277175 Boot params: ... MOUNT_ROOT_RDONLY - 00000000 ... RAMDISK_FLAGS - 00000000 ... ORIG_ROOT_DEV - 00000000 ... LOADER_TYPE - 00000000 ... INITRD_START - 00000000 ... INITRD_SIZE - 00000000 Booting machvec: RTS7751R2D Zone ranges: Normal [mem 0x000000000c000000-0x000000000fffffff] Movable zone start for each node Early memory node ranges node 0: [mem 0x000000000c000000-0x000000000fffffff] Initmem setup node 0 [mem 0x000000000c000000-0x000000000fffffff] Renesas Technology Sales RTS7751R2D support. FPGA version:1 (revision:0) Kernel command line: console=ttySC1,115200 Dentry cache hash table entries: 8192 (order: 3, 32768 bytes, linear) Inode-cache hash table entries: 4096 (order: 2, 16384 bytes, linear) Sorting __ex_table... Built 1 zonelists, mobility grouping on. Total pages: 16384 mem auto-init: stack:all(zero), heap alloc:off, heap free:off PVR=10300700 CVR=71440211 PRR=00000200 I-cache : n_ways=4 n_sets=256 way_incr=8192 I-cache : entry_mask=0x00001fe0 alias_mask=0x00001000 n_aliases=2 D-cache : n_ways=4 n_sets=256 way_incr=8192 D-cache : entry_mask=0x00001fe0 alias_mask=0x00001000 n_aliases=2 virtual kernel memory layout: fixmap : 0xdfff7000 - 0xdffff000 ( 32 kB) vmalloc : 0xc0000000 - 0xdfff5000 ( 511 MB) lowmem : 0x8c000000 - 0x90000000 ( 64 MB) (cached) : 0xa0000000 - 0xc0000000 ( 512 MB) (uncached) .init : 0x8c5d3000 - 0x8c5f6000 ( 140 kB) .data : 0x8c4433bc - 0x8c5d2e84 (1598 kB) .text : 0x8c010000 - 0x8c4433bc (4300 kB) SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0 intc: Registered controller 'sh7750' with 20 IRQs intc: Registered controller 'sh7750_dma8' with 9 IRQs intc: Registered controller 'sh7750_tmu34' with 2 IRQs intc: Registered controller 'sh7750_pci' with 8 IRQs Using R2D-PLUS interrupt controller. intc: Registered controller 'r2d-plus' with 13 IRQs Console: colour dummy device 80x25 sh-tmu.0: ch0: used for clock events sh-tmu.0: ch0: used for periodic clock events sh-tmu.0: ch1: used as clock source clocksource: sh-tmu.0: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 127417363106 ns sh-tmu.1: ch0: used for clock events sh-tmu.1: ch1: used as clock source clocksource: sh-tmu.1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 127417363106 ns sched_clock: 32 bits at 250 Hz, resolution 4000000ns, wraps every 8589934590000000ns Calibrating delay loop (skipped)... 120.00 BogoMIPS PRESET (lpj=240000) CPU: SH7785 pid_max: default: 32768 minimum: 301 Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) Memory: 58240K/65536K available (4296K kernel code, 594K rwdata, 1000K rodata, 140K init, 247K bss, 6956K reserved, 0K cma-reserved) clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns futex hash table entries: 256 (order: -1, 3072 bytes, linear) NET: Registered PF_NETLINK/PF_ROUTE protocol family DMA: preallocated 128 KiB GFP_KERNEL pool for atomic allocations PCI: Starting initialization. SCSI subsystem initialized pps_core: LinuxPPS API ver. 1 registered pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti PTP clock support registered sh_tmu sh-tmu.0: kept as earlytimer sh_tmu sh-tmu.1: kept as earlytimer PCI host bridge to bus 0000:00 pci_bus 0000:00: root bus resource [io 0x1000-0x3fffff] pci_bus 0000:00: root bus resource [mem 0xfd000000-0xfdffffff] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff] pci 0000:00:00.0: [1054:350e] type 00 class 0x060000 conventional PCI endpoint pci 0000:00:00.0: [Firmware Bug]: BAR 0: invalid; can't size pci 0000:00:00.0: [Firmware Bug]: BAR 1: invalid; can't size pci 0000:00:00.0: [Firmware Bug]: BAR 2: invalid; can't size pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00 vgaarb: loaded clocksource: Switched to clocksource sh-tmu.0 NET: Registered PF_INET protocol family IP idents hash table entries: 2048 (order: 2, 16384 bytes, linear) tcp_listen_portaddr_hash hash table entries: 1024 (order: 0, 4096 bytes, linear) Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear) TCP bind hash table entries: 1024 (order: 1, 8192 bytes, linear) TCP: Hash tables configured (established 1024 bind 1024) UDP hash table entries: 256 (order: 0, 4096 bytes, linear) UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear) NET: Registered PF_UNIX/PF_LOCAL protocol family PCI: CLS 0 bytes, default 32 trapped io 0xc0025000 overrides mmio 0xb4001000 trapped io 0xc0026000 overrides mmio 0xb400080c workingset: timestamp_bits=30 max_order=14 bucket_order=0 Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251) io scheduler mq-deadline registered io scheduler kyber registered Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled SuperH (H)SCI(F) driver initialized sh-sci.1: ttySC1 at MMIO 0xffe80000 (irq = 56, base_baud = 0) is a scif printk: legacy console [ttySC1] enabled sm501 sm501: SM501 At (ptrval): Version 050100a0, 8 Mb, IRQ 116 serial8250.9: ttyS0 at MMIO 0x13e30000 (irq = 116, base_baud = 9600) is a 16550A sm501-fb sm501-fb: fb sm501fb-crt disabled at start sm501-fb sm501-fb: using mode default mode Console: switching to colour frame buffer device 80x25 sm501-fb sm501-fb: fb0: sm501fb-crt frame buffer sm501-fb sm501-fb: fb sm501fb-panel disabled at start sm501-fb sm501-fb: using supplied mode sm501-fb sm501-fb: fb1: sm501fb-panel frame buffer scsi host0: pata_platform ata1: PATA max PIO0 mmio cmd 0xb4001000 ctl 0xb400080c irq 123 lpm-pol 0 rtc-r9701 spi0.0: cannot read RTC register NET: Registered PF_INET6 protocol family Segment Routing with IPv6 In-situ OAM (IOAM) with IPv6 sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver NET: Registered PF_PACKET protocol family heartbeat: version 0.1.2 loaded ata1: found unknown device (class 0) ata1.00: ATA-7: QEMU HARDDISK, 2.5+, max UDMA/100 ata1.00: 2097152 sectors, multi 16: LBA48 ata1.00: configured for PIO scsi 0:0:0:0: Direct-Access ATA QEMU HARDDISK 2.5+ PQ: 0 ANSI: 5 sd 0:0:0:0: [sda] 2097152 512-byte logical blocks: (1.07 GB/1.00 GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: [sda] Preferred minimum I/O size 512 bytes sd 0:0:0:0: [sda] Attached SCSI disk /dev/root: Can't open blockdev VFS: Cannot open root device "" or unknown-block(0,0): error -6 Please append a correct "root=" boot option; here are the available partitions: 0800 1048576 sda driver: sd List of all bdev filesystems: ext3 ext2 ext4 Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) CPU: 0 UID: 0 PID: 1 Comm: swapper Not tainted 6.12.0-rc7 #2 Stack: (0x8c827ec8 to 0x8c828000) 7ec0: 8c43c7e0 8c4dffa8 00000001 00000000 8c4363fc 8c4d35e4 7ee0: 00000000 8c5f7208 8c4166a0 8c827f14 c1479426 8c5d4180 00000000 8c4d35d8 7f00: 8c4166a0 00000003 8c436c4c 00000003 8ca8e00f 8c827f28 00000000 00000001 7f20: 00000000 8c4d3678 6e6b6e75 2d6e776f 636f6c62 2c30286b 00002930 00000000 7f40: 00000000 00000000 c1479426 8c5d451a 8c541f5c 8c545f3c 8c0116b0 8c5eaa40 7f60: 8c5f602c 00000000 8c5eaa34 8c5d3070 8c5f49f8 c1479426 8c43ca34 8c541f5c 7f80: 8c545f3c 8c0116b0 00000000 8c0116a8 8c543144 8c436c4c 8c0151c4 8c54e55c 7fa0: 8c040c84 00000000 00000000 00000000 00000000 00000000 8c43ca1c 00000000 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7fe0: 00000000 00000000 00000000 40008000 00000000 00000000 00000000 00000000 Call trace: [<8c4363fc>] panic+0xc4/0x280 [<8c4166a0>] strlen+0x0/0x58 [<8c5d4180>] mount_root_generic+0x150/0x248 [<8c4166a0>] strlen+0x0/0x58 [<8c436c4c>] _printk+0x0/0x48 [<8c5d451a>] prepare_namespace+0x136/0x1f4 [<8c0116b0>] arch_local_irq_restore+0x0/0x24 [<8c5d3070>] ignore_unknown_bootoption+0x0/0x4 [<8c43ca34>] kernel_init+0x18/0x104 [<8c0116b0>] arch_local_irq_restore+0x0/0x24 [<8c0116a8>] arch_local_save_flags+0x0/0x8 [<8c436c4c>] _printk+0x0/0x48 [<8c0151c4>] ret_from_kernel_thread+0xc/0x14 [<8c040c84>] schedule_tail+0x0/0x58 [<8c43ca1c>] kernel_init+0x0/0x104 ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]---