device-mapper: 4.4.0-ioctl (2005-01-12) initialised: dm-devel@redhat.com
md: md driver 0.90.1 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bind<dm-1>
md: bind<dm-2>
md: bind<dm-3>
raid5: automatically using best checksumming function: pIII_sse
   pIII_sse  :   984.000 MB/sec
raid5: using function: pIII_sse (984.000 MB/sec)
md: raid5 personality registered as nr 4
raid5: device dm-3 operational as raid disk 2
raid5: device dm-2 operational as raid disk 1
raid5: device dm-1 operational as raid disk 0
raid5: allocated 3158kB for md0
raid5: raid level 5 set md0 active with 3 out of 3 devices, algorithm 0
RAID5 conf printout:
 --- rd:3 wd:3 fd:0
 disk 0, o:1, dev:dm-1
 disk 1, o:1, dev:dm-2
 disk 2, o:1, dev:dm-3
Unable to handle kernel NULL pointer dereference at virtual address 00000004
 printing eip:
c01fb879
*pde = 00000000
Oops: 0000 [#1]
PREEMPT 
Modules linked in: raid5 xor md ide_cd cdrom dm_mod
CPU:    0
EIP:    0060:[<c01fb879>]    Not tainted VLI
EFLAGS: 00010212   (2.6.11-rc3-bk6) 
EIP is at __make_request+0x29/0x4b0
eax: 00000000   ebx: d7c30758   ecx: 00000000   edx: d7781680
esi: d7c30758   edi: 00000000   ebp: d7bf379c   esp: d7bf376c
ds: 007b   es: 007b   ss: 0068
Process evms_activate (pid: 987, threadinfo=d7bf2000 task=d7bb3a60)
Stack: 00000000 00000000 d7bb3a60 c0127d80 0000003f d7bf379c 00000086 00000008 
       d7eeefc0 d7c30758 d7ee0040 d7bf37c8 d7bf3820 c01fc112 d7c30758 d7781680 
       d7c301b8 d7bf387c 00000000 d7bb3a60 c0127d80 d7bf37e0 d7bf37e0 00000010 
Call Trace:
 [<c0102ccf>] show_stack+0x7f/0xa0
 [<c0102e6a>] show_registers+0x15a/0x1c0
 [<c0103060>] die+0xf0/0x190
 [<c010ddcb>] do_page_fault+0x31b/0x670
 [<c010290b>] error_code+0x2b/0x30
 [<c01fc112>] generic_make_request+0x152/0x210
 [<d8812787>] __clone_and_map+0x287/0x2a0 [dm_mod]
 [<d881283b>] __split_bio+0x9b/0x120 [dm_mod]
 [<d881292f>] dm_request+0x6f/0xb0 [dm_mod]
 [<c01fc112>] generic_make_request+0x152/0x210
 [<d884fbeb>] handle_stripe+0x69b/0xe20 [raid5]
 [<d8850846>] make_request+0x216/0x340 [raid5]
 [<c01fc112>] generic_make_request+0x152/0x210
 [<d8812787>] __clone_and_map+0x287/0x2a0 [dm_mod]
 [<d881283b>] __split_bio+0x9b/0x120 [dm_mod]
 [<d881292f>] dm_request+0x6f/0xb0 [dm_mod]
 [<c01fc112>] generic_make_request+0x152/0x210
 [<c01fc230>] submit_bio+0x60/0x100
 [<c0153c85>] submit_bh+0xd5/0x130
 [<c0152c02>] block_read_full_page+0x182/0x2a0
 [<c0136fbb>] read_pages+0xeb/0x130
 [<c01370f8>] __do_page_cache_readahead+0xf8/0x180
 [<c0137315>] blockable_page_cache_readahead+0x35/0x70
 [<c0137587>] page_cache_readahead+0x237/0x2b0
 [<c01309b6>] do_generic_mapping_read+0x526/0x540
 [<c0130cb3>] __generic_file_aio_read+0x1e3/0x220
 [<c0130e06>] generic_file_read+0xa6/0xc0
 [<c014f3ad>] vfs_read+0x9d/0x120
 [<c014f67b>] sys_read+0x4b/0x80
 [<c0102763>] syscall_call+0x7/0xb
Code: 00 00 55 89 e5 57 31 ff 56 53 83 ec 24 8b 55 0c 8b 75 08 8b 02 89 45 e0 8b 42 1c c1 e8 09 89 45 ec 8b 4a 2c 0f b7 42 16 8d 04 40 <8b> 44 81 04 c1 e8 09 89 45 e8 8d 45 0c 8b 5a 10 89 44 24 04 89