RAID5 conf printout:
 --- rd:3 wd:1
 disk 1, o:1, dev:sdc
------------[ cut here ]------------
kernel BUG at fs/bio.c:222!
invalid opcode: 0000 [1]
CPU 0
Modules linked in: bonding e1000
Pid: 11544, comm: md0_raid5 Not tainted 2.6.20-bond #1
RIP: 0010:[<ffffffff8022b0ba>]  [<ffffffff8022b0ba>] bio_put+0xa/0x30
RSP: 0018:ffff81000cf6bdb8  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff81001b713db0 RCX: 0000000000000000
RDX: ffff81001023e4c0 RSI: 0000000000000000 RDI: ffff81001023e4c0
RBP: ffff81001bef43b0 R08: ffff81000cf6be58 R09: 0000000000000003
R10: 0000000000000003 R11: 0000000000000002 R12: ffff8100013d7e58
R13: ffff810018fdb440 R14: ffff81001023e4c0 R15: 0000000000001000
FS:  00002aac9d4896d0(0000) GS:ffffffff80729000(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 00002ad8ff81d000 CR3: 000000001b798000 CR4: 00000000000006e0
Process md0_raid5 (pid: 11544, threadinfo ffff81000cf6a000, task ffff81001afe8140)
Stack:  ffffffff8039a7ca 000000003465f938 ffff81001b713db0 0000000000000000
 000000003465f930 ffff81001023e4c0 000000003465f930 ffff81001b052600
 ffffffff804e058c 0000000000000010 ffff81000cf6be40 7fffffffffffffff
Call Trace:
 [<ffffffff8039a7ca>] xfs_buf_bio_end_io+0x12a/0x140
 [<ffffffff804e058c>] raid5d+0x1ec/0x320
 [<ffffffff8025d495>] schedule_timeout+0x25/0xd0
 [<ffffffff804eb0cc>] md_thread+0x11c/0x140
 [<ffffffff8028d020>] autoremove_wake_function+0x0/0x30
 [<ffffffff804eafb0>] md_thread+0x0/0x140
 [<ffffffff8022f243>] kthread+0xd3/0x110
 [<ffffffff80257a68>] child_rip+0xa/0x12
 [<ffffffff8022f170>] kthread+0x0/0x110
 [<ffffffff80257a5e>] child_rip+0x0/0x12


Code: 0f 0b 66 66 66 90 eb fe ff 4f 50 0f 94 c0 84 c0 74 0f 48 c7
RIP  [<ffffffff8022b0ba>] bio_put+0xa/0x30
 RSP <ffff81000cf6bdb8>
 <1>I/O error in filesystem ("md0") meta-data dev md0 block 0x3465f930       ("xfs_trans_read_buf") error 5 buf count 4096
xfs_force_shutdown(md0,0x1) called from line 415 of file fs/xfs/xfs_trans_buf.c.  Return address = 0xffffffff8038c1e2