Linux Kernel Internal Error Oops 17
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Internal Error: Oops: 17 [#1] Preempt Arm
Oops 17 for ARM up vote 0 down vote favorite For a few days, I have investigated this problem, but knowing hardly could not be. linux version : 2.6.39 board : at91sam9x25 Processor : ARM926EJ-S rev 5 After the process has been run successfully for more than one day, displays the message oops suddenly. look at the r0. it is measns struct kmem_cache pointer. unable to handle kernel null pointer dereference at virtual address 00000000 keme_cache pointer was initialized when linux booting. Then the r0 is should never change. but the oops message, the r0 is 0.. it is impossible i don't know why the r0 was changed to 0. i want how to debugging or answer please help me. Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = cfb1c000 [00000000] *pgd=2fbfa831, *pte=00000000, *ppte=00000000 Internal error: Oops: 17 [#1] last sysfs file: Modules linked in: CPU: 0 Not tainted (2.6.39 #216) PC is at kmem_cache_alloc+0x24/0x98 LR is at getname_flags+0x20/0xe8 pc : [] lr : [] psr: 40000093 sp : cfbb5f40 ip : 00000000 fp : 00000000 r10: 00000000 r9 : cfbb4000 r8 : ffffff9c r7 : 00000000 r6 : 00000000 r5 : 40000013 r4 : 40202e7e r3 : 40000093 r2 : 00000100 r1 : 000000d0 r0 : 00000000 Flags: nZcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user Control: 0005317f Table: 2fb1c000 DAC: 00000015 Process MEG (pid: 589, stack limit = 0xcfbb4270) Stack: (0xcfbb5f40 to 0xcfbb6000) 5f40: 00000000 40202e7e 00000000 00000000 00000000 c00a1e9c 00014220 00000001 5f60: 00000000 00000000 00000005 c0094efc 00000000 00000011 00000000 00000000 5f80: 00000024 00000100
thread ] [ subject ] [ author ] Hello all, Just to confirm that the error I posted previously exist in 3.13 released. Just be noted unable to handle kernel paging request at virtual address that some patches related to eMMC/sdhci has been applied in order to boot the 3.13 on my board. Addition to that, I was getting additional errors (please see below): - It happened during the reboot. Cc'ng Dong Aisheng. [ 11.229139] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 11.237244] pgd = 80004000 [ 11.239956] [00000000] *pgd=00000000 [ 11.243555] Internal error: Oops: http://stackoverflow.com/questions/24237228/kernel-oops-17-for-arm 17 [#1] ARM [ 11.247917] Modules linked in: bt8xxx(O) sd8xxx(O) mlan(PO) [ 11.253561] CPU: 0 PID: 37 Comm: mmcqd/0 Tainted: P O 3.13.0 #5 [ 11.260355] task: bfb00000 ti: bfb6e000 task.ti: bfb6e000 [ 11.265766] PC is at sg_next+0xc/0x34 [ 11.269440] LR is at sdhci_send_command+0x990/0xf50 [ 11.274323] pc : [<802a3874>] lr : [<803a2bc8>] psr: 200f0093 [ 11.274323] sp : bfb6fd20 ip : bfb6fd30 fp : bfb6fd2c http://lists.infradead.org/pipermail/linux-arm-kernel/2014-January/227558.html [ 11.285803] r10: 00000003 r9 : bfa67440 r8 : bf957010 [ 11.291030] r7 : 808487bc r6 : 600f0013 r5 : bfb43d4c r4 : bfb43ce4 [ 11.297560] r3 : 81784e62 r2 : 00000000 r1 : bfb6a800 r0 : 00000000 [ 11.304091] Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel [ 11.311490] Control: 10c53c7d Table: beeec059 DAC: 00000015 [ 11.317239] Process mmcqd/0 (pid: 37, stack limit = 0xbfb6e238) [ 11.323162] Stack: (0xbfb6fd20 to 0xbfb70000) [ 11.327530] fd20: bfb6fd8c bfb6fd30 803a2bc8 802a3874 00000002 00000000 bfb6fd5c bfb6fd48 [ 11.335713] fd40: 8001d1d0 00000002 80e04788 80845840 bfb6fd8c bfb6a800 803a7558 8001d190 [ 11.343896] fd60: 803a7418 bfa67000 bfb43c6c bfa67470 600f0013 bfa67440 0000002d bfa67000 [ 11.352079] fd80: bfb6fdb4 bfb6fd90 803a3a48 803a2244 bfb43c6c bfa67000 8089fed0 bfb43d4c [ 11.360262] fda0: bfb6fe7c bfb43ec0 bfb6fdec bfb6fdb8 8038d3e0 803a388c bfb6fdd4 bfb6fdc8 [ 11.368444] fdc0: 8005b7c4 bfa673d8 bfb43e18 00000000 00000001 bfb43d8c 00000001 bfb6fe7c [ 11.376626] fde0: bfb6fe3c bfb6fdf0 8038e538 8038d2c4 bfb6fe3c bfb43da0 8039d0a4 00000000 [ 11.384809] fe00: bfb00000 8005344c bfb6fe08 bfb6fe08 bfb6fe34 bfbfc000 bfb43c24 bfb6a000 [ 11.392992] fe20: bfb44b60 bfb43c68 bfb6a000 bfb43c6c bfb6feac bfb6fe40 8039e214 8038e278 [ 11.401175] fe40: bfb44b60 bfb43c24 bfb6fe74 bfb6fe58 80292194 80276c0c bfb4fc00 bef024c0 [ 11.409357] fe60: 00000000 00000000 00000000 bfb6fe7
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