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Subject[OOPS] 2.5.70-bk15: SBP2 unmount
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After the first oops generated by unplugging and replugging the drive, I
attempted to unmount the partition that was on that drive. That
generated another oops. Attempting to shutdown and restart hung the
machine and I had to hit the power switch.

Here it is:

<1>Unable to handle kernel NULL pointer dereference at virtual address 00000044
printing eip:
c020ff73
*pde = 00000000
Oops: 0002 [#2]
CPU: 0
EIP: 0060:[<c020ff73>] Not tainted
EFLAGS: 00010246
EIP is at generic_make_request+0x143/0x1d0
eax: 00000000 ebx: c1740960 ecx: e7fc5460 edx: 00000000
esi: 00000008 edi: e742bc00 ebp: e6809dcc esp: e6809d80
ds: 007b es: 007b ss: 0068
Process umount (pid: 2640, threadinfo=e6808000 task=e5303260)
Stack: e6809d80 e6809d80 d5cccaf0 e6809dd0 c014cc79 e7fc5460 00000000 00003730
e6809dc4 c014f34a e7fde860 00000010 0000000c 00000000 d5cccac0 00000001
00000001 00000002 00000000 e6809ddc c021003d e7fc5460 d5cccac0 e6809df8
Call Trace:
[<c014cc79>] bh_lru_install+0xa9/0xe0
[<c014f34a>] bio_alloc+0xda/0x1c0
[<c021003d>] submit_bio+0x3d/0x80
[<c014eccf>] ll_rw_block+0x6f/0x90
[<c01b5d2e>] flush_commit_list+0x1fe/0x450
[<c014c618>] fsync_buffers_list+0x138/0x150
[<c01ba874>] do_journal_end+0x9d4/0xc40
[<c012a388>] rcu_process_callbacks+0xc8/0xf0
[<c01b6c98>] do_journal_release+0x88/0x100
[<c01b9032>] journal_mark_dirty+0x1d2/0x330
[<c01a823d>] reiserfs_destroy_inode+0x1d/0x30
[<c01b6d30>] journal_release+0x20/0x30
[<c01a8046>] reiserfs_put_super+0x26/0x1d0
[<c0150596>] generic_shutdown_super+0xd6/0xe0
[<c0150e6d>] kill_block_super+0x1d/0x50
[<c0150426>] deactivate_super+0x46/0x70
[<c01635dc>] sys_umount+0x3c/0xa0
[<c0163659>] sys_oldumount+0x19/0x20
[<c010afed>] sysenter_past_esp+0x52/0x71

Code: 01 70 44 ff 40 40 eb ce 90 8d 74 26 00 01 70 3c ff 40 38 eb




--
Torrey Hoffman <thoffman@arnor.net>

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