Reproducable OOPS with MD RAID-5 on 2.6.0-test11

From: Kevin P. Fleming
Date: Mon Dec 01 2003 - 09:08:35 EST

I've got a new system here with six SATA disks set up in a RAID-5 array (no partition tables, using the whole disks). I then used LVM2 tools to make the RAID array a physical volume, created a logical volume and formatted that volume with an XFS filesystem.

Mounting the filesystem and copying over the 2.6 kernel source tree produces this OOPS (and is pretty reproducable):

kernel BUG at fs/bio.c:177!
invalid operand: 0000 [#1]
CPU: 0
EIP: 0060:[<c014db9a>] Not tainted
EFLAGS: 00010246
EIP is at bio_put+0x2c/0x36
eax: 00000000 ebx: f6221080 ecx: c1182180 edx: edcbf780
esi: c577b998 edi: 00000002 ebp: edcbf780 esp: f78ffeb0
ds: 007b es: 007b ss: 0068
Process md0_raid5 (pid: 65, threadinfo=f78fe000 task=f7924080)
Stack: c71e2640 c021d88d edcbf780 00000000 00000001 c1182180 00000009 0001000
edcbf780 00000000 00000000 00000000 c014e2fc edcbf780 00000000 00000000
f23a0ff0 f23a0ff0 edcbf7c0 c02ca51d edcbf780 00000000 00000000 00000000
Call Trace:
[<c021d88d>] bio_end_io_pagebuf+0x9a/0x138
[<c014e2fc>] bio_endio+0x59/0x7e
[<c02ca51d>] clone_endio+0x82/0xb5
[<c02c0dc3>] handle_stripe+0x8f2/0xec0
[<c02c17d1>] raid5d+0x71/0x105
[<c02c898c>] md_thread+0xde/0x15c
[<c011984b>] default_wake_function+0x0/0x12
[<c02c88ae>] md_thread+0x0/0x15c
[<c0107049>] kernel_thread_helper+0x5/0xb

Code: 0f 0b b1 00 bc 94 34 c0 eb d8 56 53 83 ec 08 8b 44 24 18 8b

Hardware is a 2.6CGHz P4, 1G of RAM (4G highmem enabled), SMP kernel but no preemption. Kernel config is at:

(I'm subscribed to linux-kernel but not linux-raid, so please CC me on any linux-raid responses. Thanks!)

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