oops reiserfs / kernel

[Guillaume]

The server has started to refuse all connections after several days of 
functioning correctly. After a reboot it worked well during 5 hours 
until it crashed in exactly the same manner and after analyzing the logs 
I came accross the following message.

(This machine is a biprocessor AMD MP 2800+, motherboard tyan S2469 but 
it has ECC RAM Registered (3Go) and SCSI hard drives)

At the moment the crash occured there was a heavy load on the postfix 
mail queue

Dec 22 18:26:33 lanai kernel: Unable to handle kernel NULL pointer 
dereference at virtual address 00000014
Dec 22 18:26:33 lanai kernel:  printing eip:
Dec 22 18:26:33 lanai kernel: c01c34fd
Dec 22 18:26:33 lanai kernel: *pde = 00000000
Dec 22 18:26:33 lanai kernel: Oops: 0000 [#1]
Dec 22 18:26:33 lanai kernel: PREEMPT SMP
Dec 22 18:26:33 lanai kernel: Modules linked in: 8250 serial_core unix
Dec 22 18:26:33 lanai kernel: CPU:    1
Dec 22 18:26:33 lanai kernel: EIP: 
0060:[create_virtual_node+1533/2000]    Not tainted
Dec 22 18:26:33 lanai kernel: EFLAGS: 00010212   (2.6.8.1)
Dec 22 18:26:33 lanai kernel: EIP is at create_virtual_node+0x5fd/0x7d0
Dec 22 18:26:33 lanai kernel: eax: 0000f6ba   ebx: c931504c   ecx: 
d6f95b0c   edx: 00000000
Dec 22 18:26:33 lanai kernel: esi: c9315000   edi: d6f95b0c   ebp: 
00000000   esp: d6f95990
Dec 22 18:26:33 lanai kernel: ds: 007b   es: 007b   ss: 0068
Dec 22 18:26:33 lanai kernel: Process cleanup (pid: 1020, 
threadinfo=d6f94000 task=f33e2370)
Dec 22 18:26:33 lanai kernel: Stack: c9315000 c931504c 00000000 0000f6ba 
d6f95a50 c01b4d6c 000000a8 e3eb5b3c
Dec 22 18:26:33 lanai kernel:        00000007 f02fb018 00000000 d6f95b0c 
0001068a f02fb018 c01c54ea d6f95b0c
Dec 22 18:26:33 lanai kernel:        00000000 00000000 00000000 00000003 
00000012 00000000 00000000 00000000
Dec 22 18:26:33 lanai kernel: Call Trace:
Dec 22 18:26:33 lanai kernel:  [do_balance+252/400] do_balance+0xfc/0x190
Dec 22 18:26:33 lanai kernel:  [ip_check_balance+714/3200] 
ip_check_balance+0x2ca/0xc80
Dec 22 18:26:33 lanai kernel:  [reiserfs_cut_from_item+867/1840] 
reiserfs_cut_from_item+0x363/0x730
Dec 22 18:26:33 lanai kernel:  [fix_nodes+506/1424] fix_nodes+0x1fa/0x590
Dec 22 18:26:33 lanai kernel:  [reiserfs_insert_item+437/848] 
reiserfs_insert_item+0x1b5/0x350
Dec 22 18:26:33 lanai kernel: 
[reiserfs_allocate_blocks_for_region+3853/5936] 
reiserfs_allocate_blocks_for_region+0xf0d/0x
1730
Dec 22 18:26:33 lanai kernel: 
[reiserfs_prepare_file_region_for_write+1552/2816] 
reiserfs_prepare_file_region_for_write+0x
610/0xb00
Dec 22 18:26:33 lanai kernel:  [reiserfs_file_write+1622/2384] 
reiserfs_file_write+0x656/0x950
Dec 22 18:26:33 lanai kernel:  [sock_aio_read+245/272] 
sock_aio_read+0xf5/0x110
Dec 22 18:26:33 lanai kernel:  [do_sync_read+132/176] do_sync_read+0x84/0xb0
Dec 22 18:26:33 lanai kernel:  [do_sigaction+528/976] 
do_sigaction+0x210/0x3d0
Dec 22 18:26:33 lanai kernel:  [copy_from_user+66/128] 
copy_from_user+0x42/0x80
Dec 22 18:26:33 lanai kernel:  [reiserfs_file_write+0/2384] 
reiserfs_file_write+0x0/0x950
Dec 22 18:26:33 lanai kernel:  [vfs_write+184/304] vfs_write+0xb8/0x130
Dec 22 18:26:33 lanai kernel:  [sys_socketcall+311/608] 
sys_socketcall+0x137/0x260
Dec 22 18:26:33 lanai kernel:  [sys_write+81/128] sys_write+0x51/0x80
Dec 22 18:26:33 lanai kernel:  [syscall_call+7/11] syscall_call+0x7/0xb
Dec 22 18:26:33 lanai kernel: Code: ff 52 14 e9 af fc ff ff 83 f9 fe b8 
01 00 00 00 74 ca 83 f9

lanai:~# lsmod
Module                  Size  Used by
8250                   23200  2
serial_core            23936  1 8250
unix                   26900  184
lanai:~# lspci
0000:00:00.0 Host bridge: Advanced Micro Devices [AMD] AMD-760 MP 
[IGD4-2P] System Controller (rev 20)
0000:00:01.0 PCI bridge: Advanced Micro Devices [AMD] AMD-760 MP 
[IGD4-2P] AGP Bridge
0000:00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ISA 
(rev 05)
0000:00:07.1 IDE interface: Advanced Micro Devices [AMD] AMD-768 [Opus] 
IDE (rev 04)
0000:00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI 
(rev 03)
0000:00:0a.0 SCSI storage controller: Adaptec AIC-7902 U320 (rev 10)
0000:00:0a.1 SCSI storage controller: Adaptec AIC-7902 U320 (rev 10)
0000:00:0b.0 Ethernet controller: Intel Corp. 82545EM Gigabit Ethernet 
Controller (Copper) (rev 01)
0000:00:10.0 PCI bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] PCI 
(rev 05)
0000:02:07.0 VGA compatible controller: ATI Technologies Inc Rage XL 
(rev 27)
0000:02:08.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 
100] (rev 10)


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