Reproducable OOPS with MD RAID-5 on 2.6.0-test11

[Kevin P. Fleming]

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:

http://www.backtobasicsmgmt.com/bucky/bucky.config

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

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