kernel_thread crash 2.6.26 kernel on MPC8248 board

[Jayasri Sangu]

Hi,



      Our kernel 2.6.26  on MPC8248 board  crashes as the cache reaches 12MB, giving the following Oops message.





Oops: kernel access of bad area, sig: 11 [#1]

NIP: c0013638 LR: c00138bc CTR: c00c0c08

REGS: c7ce1e40 TRAP: 0300   Not tainted  (2.6.26)

MSR: 00001032 <ME,IR,DR>  CR: 24004024  XER: 20000000

DAR: 4bffffa0, DSISR: 20000000

TASK = c7c7b800[14] 'rpciod/0' THREAD: c7ce0000

GPR00: c00138bc c7ce1ef0 c7c7b800 c0400508 00000003 00000001 00000000 c7ce1f48

GPR08: c7de704c 4bffffa0 4bffff94 c027accc 00ae8da1 dfef4fbb 07ffd000 00000001

GPR16: 007fff78 00800000 00000000 ffffffff 00000000 c0276dbc c0270000 c0276dbc

GPR24: c0270000 00000003 00000000 c7ce1f48 00000001 00009032 c0400508 c7de7044 NIP [c0013638] __wake_up_common+0x30/0xa4 LR [c00138bc] __wake_up+0x28/0x40 Call Trace:

[c7ce1ef0] [00001032] 0x1032 (unreliable) [c7ce1f20] [c00138bc] __wake_up+0x28/0x40 [c7ce1f40] [c002f9ec] __wake_up_bit+0x30/0x40 [c7ce1f60] [c01ea67c] __rpc_execute+0x214/0x29c [c7ce1f80] [c002be7c] run_workqueue+0xac/0x158 [c7ce1fa0] [c002c29c] worker_thread+0x50/0xb4 [c7ce1fd0] [c002f640] kthread+0x84/0x8c [c7ce1ff0] [c0005df8] kernel_thread+0x44/0x60 Instruction dump:

7c0802a6 9421ffd0 bf210014 7c7e1b78 7c992378 7cbc2b78 90010034 7cda3378 81230000 7cfb3b78 7f891800 3949fff4 <816a000c> 3bebfff4 419e0058 800a0008

Oops: kernel access of bad area, sig: 11 [#2]

NIP: c00781cc LR: c00782d4 CTR: 00000000

REGS: c7ce1c30 TRAP: 0300   Tainted: G      D    (2.6.26)

MSR: 00009032 <EE,ME,IR,DR>  CR: 24048084  XER: 20000000

DAR: 7fe6fb78, DSISR: 20000000

TASK = c7c7b800[14] 'rpciod/0' THREAD: c7ce0000

GPR00: 7fe6fb78 c7ce1ce0 c7c7b800 c7801180 c7ce1d38 c02572bd 00000000 00000001

GPR08: fffffffb 00008e24 c0400f20 c0290000 24048022 dfef4fbb 07ffd000 00000001

GPR16: 007fff78 00800000 00000000 c023b4d8 c02572bc c0250000 00200200 00000000

GPR24: c7ce1d44 00000002 000197dc c7ce1d38 c7801180 7fe6fb78 c7ce1d38 00000002 NIP [c00781cc] __d_lookup+0x84/0x154 LR [c00782d4] d_lookup+0x38/0x64 Call Trace:

[c7ce1ce0] [00000003] 0x3 (unreliable)

[c7ce1d10] [c00782d4] d_lookup+0x38/0x64 [c7ce1d30] [c009c970] proc_flush_task+0xa4/0x248 [c7ce1d90] [c001c614] release_task+0x44/0x360 [c7ce1dc0] [c001cfa4] do_exit+0x4dc/0x634 [c7ce1e00] [c0004938] nonrecoverable_exception+0x0/0x4c [c7ce1e10] [c000f270] bad_page_fault+0x58/0x5c [c7ce1e30] [c000415c] handle_page_fault+0x7c/0x80 [c7ce1ef0] [00001032] 0x1032 [c7ce1f20] [c00138bc] __wake_up+0x28/0x40 [c7ce1f40] [c002f9ec] __wake_up_bit+0x30/0x40 [c7ce1f60] [c01ea67c] __rpc_execute+0x214/0x29c [c7ce1f80] [c002be7c] run_workqueue+0xac/0x158 [c7ce1fa0] [c002c29c] worker_thread+0x50/0xb4 [c7ce1fd0] [c002f640] kthread+0x84/0x8c [c7ce1ff0] [c0005df8] kernel_thread+0x44/0x60 Instruction dump:

3d60c029 7d295038 814ba0d0 5529103a 7c09502e 2f800000 7c1d0378 40be0014 48000080 2f9f0000 7ffdfb78 419e0074 <83fd0000> 2f9f0000 419e0008 7c00fa2c Fixing recursive fault but reboot is needed









Thanks

Jayasri Sangu



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