Крах системы

Подскажите из за чего произашел крах системы ? 
У меня стоит Шапка 4 ен 
Linux ix1 2.6.9-5.ELsmp #1 SMP Wed Jan 5 19:30:39 EST 2005 i686 i686 i386 GNU/Linux

в логе видно следующее

Dec 26 04:54:22 ix1 kernel: ------------[ cut here ]------------
Dec 26 04:54:22 ix1 kernel: kernel BUG at kernel/exit.c:840!
Dec 26 04:54:22 ix1 kernel: invalid operand: 0000 [#1]
Dec 26 04:54:22 ix1 kernel: SMP
Dec 26 04:54:22 ix1 kernel: Modules linked in: snapapi26(U) nfs lockd parport_pc lp parport autofs4 i2c_dev i2c_core sunrpc bu
tton battery ac md5 ipv6 ohci_hcd ehci_hcd tg3 sg dm_snapshot dm_zero dm_mirror ext3 jbd dm_mod aic79xx aacraid ips sd_mod scs
i_mod
Dec 26 04:54:22 ix1 kernel: CPU:    3
Dec 26 04:54:22 ix1 kernel: EIP:    0060:[<c0122b9d>]    Tainted: P      VLI
Dec 26 04:54:22 ix1 kernel: EFLAGS: 00010246   (2.6.9-5.ELsmp)
Dec 26 04:54:22 ix1 kernel: EIP is at do_exit+0x32d/0x3c0
Dec 26 04:54:22 ix1 kernel: eax: 00000000   ebx: 00000000   ecx: 00000000   edx: eb76a000
Dec 26 04:54:22 ix1 kernel: esi: 00000000   edi: f6fe46b0   ebp: 0000000b   esp: eb76aea8
Dec 26 04:54:22 ix1 kernel: ds: 007b   es: 007b   ss: 0068
Dec 26 04:54:22 ix1 kernel: Process pdflush (pid: 13378, threadinfo=eb76a000 task=f6fe46b0)
Dec 26 04:54:22 ix1 kernel: Stack: eb76a000 eb76afa8 00000000 c02d0229 c0106047 0000000b eb76afa8 c02d0229
Dec 26 04:54:22 ix1 kernel:        00000000 000000ff 0000000b 00000000 c0106329 00000000 eb76afa8 00000000
Dec 26 04:54:22 ix1 kernel:        c0106329 00000000 c01063f5 eb76afa8 c02d0229 00000000 00000006 00000004
Dec 26 04:54:22 ix1 kernel: Call Trace:
Dec 26 04:54:22 ix1 kernel:  [<c0106047>] do_divide_error+0x0/0xea
Dec 26 04:54:22 ix1 kernel:  [<c0106329>] do_invalid_op+0x0/0xd5
Dec 26 04:54:22 ix1 kernel:  [<c0106329>] do_invalid_op+0x0/0xd5
Dec 26 04:54:22 ix1 kernel:  [<c01063f5>] do_invalid_op+0xcc/0xd5
Dec 26 04:54:22 ix1 kernel:  [<c0122c26>] do_exit+0x3b6/0x3c0
Dec 26 04:54:22 ix1 kernel:  [<c011bd15>] finish_task_switch+0x30/0x66
Dec 26 04:54:22 ix1 kernel:  [<c02c4543>] schedule+0x833/0x869
Dec 26 04:54:22 ix1 kernel:  [<c02c454d>] schedule+0x83d/0x869
Dec 26 04:54:22 ix1 kernel:  [<c02c6d7f>] error_code+0x2f/0x38
Dec 26 04:54:22 ix1 kernel:  [<c0122c26>] do_exit+0x3b6/0x3c0
Dec 26 04:54:22 ix1 kernel:  [<c0131d5a>] kthread+0x0/0x9b
Dec 26 04:54:22 ix1 kernel:  [<c01041f7>] kernel_thread+0x0/0x72
Dec 26 08:00:23 ix1 syslogd 1.4.1: restart.

Если нужно есть все выгрузки топов и состояний процесов на момент падения и за две менуты до него !