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[linux-lvm] Re: linux-2.6.0 + reiser4 oops



Thanks Mark, the weekend has already started here in Moscow, but Vladimir will look into this on Monday. Thanks for the report.

Hans

markw osdl org wrote:

I was testing our DBT-2 workload on linux-2.6.0 with LVM2 and reiser4
and got the following oops when I attempted to create a database with
PostgreSQL.  Let me know if I can provide any additional information:

Unable to handle kernel NULL pointer dereference at virtual address 00000000
printing eip: c014c607 *pde = 00104001
*pte = 00000000
Oops: 0000 [#1]
CPU: 7 EIP: 0060:[<c014c607>] Not tainted
EFLAGS: 00010086 EIP is at page_address+0x17/0xd0
eax: 00000000 ebx: 00000000 ecx: ea5c58e0 edx: ea21bf20
esi: f69df200 edi: 00000000 ebp: 00000001 esp: f59abb84
ds: 007b es: 007b ss: 0068 Process ktxnmgrd:run (pid: 16798, threadinfo=f59aa000 task=f5983960)
Stack: 00000001 e8d77260 f69df200 00000000 00000001 c027fed6 00000000 ea5c58e0 00000020 00000000 00002980 00000000 00000000 00000008 00000020 e8d77260 f69df200 00000020 ea5c5be0 00000020 c02803ff f69df200 ea5c58e0 f7fc7260 Call Trace: [<c027fed6>] __make_request+0x226/0x5e0
[<c02803ff>] generic_make_request+0x16f/0x1f0
[<c02f303d>] __map_bio+0x3d/0x120 [<c02f32f6>] __clone_and_map+0xc6/0x310
[<c011fae0>] autoremove_wake_function+0x0/0x50
[<c02f35c8>] __split_bio+0x88/0x100 [<c022000c>] try_by_label+0x2c/0x40
[<c02f3703>] dm_request+0xc3/0xe0 [<c02803ff>] generic_make_request+0x16f/0x1f0
[<c0165807>] bio_alloc+0xd7/0x1c0 [<c02804d4>] submit_bio+0x54/0xa0
[<c01ece88>] jnode_extent_write+0x3c8/0x430
[<c01ed157>] alloc_wandered_blocks+0x77/0xc0
[<c01ed5e2>] reiser4_write_logs+0x1b2/0x300 [<c01e464d>] commit_current_atom+0x17d/0x260
[<c01e50bd>] try_commit_txnh+0xed/0x1b0 [<c01e51b8>] commit_txnh+0x38/0xd0 [<c011f651>] .text.lock.sched+0x10f/0x12e
[<c01e385f>] txn_end+0x3f/0x50 [<c01e4b57>] commit_some_atoms+0x187/0x220
[<c01f38f6>] scan_mgr+0x36/0x57 [<c01f3528>] ktxnmgrd+0x1a8/0x290
[<c01f3380>] ktxnmgrd+0x0/0x290 [<c01072e9>] kernel_thread_helper+0x5/0xc
Code: 8b 03 a9 00 01 00 00 75 30 8b 0d 8c 33 4a c0 29 cb c1 fb 03 <6>note: ktxnmgrd:run[16798] exited with preempt_count 1 Debug: sleeping function called from invalid context at include/linux/rwsem.h:43
in_atomic():1, irqs_disabled():0 Call Trace: [<c011f3eb>] __might_sleep+0xab/0xd0
[<c0122928>] printk+0x178/0x1d0 [<c0122ef0>] profile_exit_task+0x20/0x60
[<c0124a88>] do_exit+0x78/0x4b0 [<c010a8bc>] die+0xfc/0x100 [<c011a4a9>] do_page_fault+0x1f9/0x58f
[<c0143180>] __alloc_pages+0xc0/0x370 [<c0141c61>] mempool_alloc+0x91/0x190
[<c011fae0>] autoremove_wake_function+0x0/0x50
[<c0141c61>] mempool_alloc+0x91/0x190 [<c011fae0>] autoremove_wake_function+0x0/0x50
[<c011fae0>] autoremove_wake_function+0x0/0x50
[<c011a2b0>] do_page_fault+0x0/0x58f [<c010a205>] error_code+0x2d/0x38 [<c014c607>] page_address+0x17/0xd0
[<c027fed6>] __make_request+0x226/0x5e0
[<c02803ff>] generic_make_request+0x16f/0x1f0
[<c02f303d>] __map_bio+0x3d/0x120 [<c02f32f6>] __clone_and_map+0xc6/0x310
[<c011fae0>] autoremove_wake_function+0x0/0x50
[<c02f35c8>] __split_bio+0x88/0x100 [<c022000c>] try_by_label+0x2c/0x40
[<c02f3703>] dm_request+0xc3/0xe0 [<c02803ff>] generic_make_request+0x16f/0x1f0
[<c0165807>] bio_alloc+0xd7/0x1c0 [<c02804d4>] submit_bio+0x54/0xa0
[<c01ece88>] jnode_extent_write+0x3c8/0x430
[<c01ed157>] alloc_wandered_blocks+0x77/0xc0
[<c01ed5e2>] reiser4_write_logs+0x1b2/0x300 [<c01e464d>] commit_current_atom+0x17d/0x260
[<c01e50bd>] try_commit_txnh+0xed/0x1b0 [<c01e51b8>] commit_txnh+0x38/0xd0 [<c011f651>] .text.lock.sched+0x10f/0x12e
[<c01e385f>] txn_end+0x3f/0x50 [<c01e4b57>] commit_some_atoms+0x187/0x220
[<c01f38f6>] scan_mgr+0x36/0x57 [<c01f3528>] ktxnmgrd+0x1a8/0x290
[<c01f3380>] ktxnmgrd+0x0/0x290 [<c01072e9>] kernel_thread_helper+0x5/0xc







--
Hans





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