How to debug kernel panic on kernel 4.12.28? July 08, 2019 01:16AM |
CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=32768
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled serial8250.0: ttyS0 at MMIO 0xe0004500 (irq = 16, base_baud = 19531250) is a 16550A serial8250.0: ttyS1 at MMIO 0xe0004600 (irq = 17, base_baud = 19531250) is a 16550A console [ttyS1] enabled console [ttyS1] enabled bootconsole [udbg0] disabled bootconsole [udbg0] disabled Custom Debug..DEBUG: Passed bdget_disk 765 Custom Debug.. the disc name is ram0 Unable to handle kernel paging request for data at address 0x00005484 Faulting instruction address: 0xc0100154 Oops: Kernel access of bad area, sig: 11 [#1] Modules linked in: CPU: 0 PID: 1 Comm: swapper Not tainted 4.12.28-biamp-standard #1 task: df416a60 task.stack: df42a000 NIP: c0100154 LR: c011d158 CTR: c02bd990 REGS: df42bcb0 TRAP: 0300 Not tainted (4.12.28-biamp-standard) MSR: 00009032 <EE,ME,IR,DR,RI> CR: 242c0484 XER: 00000000 DAR: 00005484 DSISR: 20000000 GPR00: c02406bc df42bd60 df416a60 df407800 00000001 c011cb4c c011cb64 df42bd68 GPR08: 00000005 00000001 c0660000 00000000 222c0824 00000000 c00040f0 00000000 GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 c0660000 c05fa2dc GPR24: 00000007 00000093 df50d00c df50d060 00000000 df50d058 00000000 df50d040 NIP [c0100154] iget5_locked+0xc/0x250 LR [c011d158] bdget+0x40/0xf4 Call Trace: [df42bd60] [c0652708] log_wait+0x0/0x8 (unreliable) [df42bd80] [c02406bc] bdget_disk+0xac/0xf8 [df42bda0] [c0241780] device_add_disk+0x3f4/0x43c [df42bdf0] [c060ed5c] brd_init+0xa8/0x184 [df42be20] [c0003a5c] do_one_initcall+0x48/0x18c [df42be90] [c05faafc] kernel_init_freeable+0x130/0x228 [df42bf20] [c0004108] kernel_init+0x18/0x110 [df42bf40] [c00103f0] ret_from_kernel_thread+0x5c/0x64 Instruction dump: 741d7e44 3f090d7e ea9463ef 3a7ebecd fc607969 24b8044d a251c1c7 2c91258b 242aaa92 9887d4e0 2f4a22b5 8b2ef93c <8b9c5484> 7ecf225d 6a9c4a5b 1a5791d4 ---[ end trace 47ca8dc77d8de71b ]--- Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b Rebooting in 180 seconds..