Fatal exception: panic in 5 seconds

[bendani]

got centos 4 (i thing its 4.3 but not sure)
my server crashes every now and then and every time its not because of the same reason
i really don't know what to do anymore

i got Pentium D 3.0
With 2GB ddr


here is some logs :

Jun 6 17:43:37 host kernel: Unable to handle kernel paging request at virtual address 04000000
Jun 6 17:43:37 host kernel: printing eip:
Jun 6 17:43:37 host kernel: c0140804
Jun 6 17:43:37 host kernel: *pde = 37252001
Jun 6 17:43:37 host kernel: Oops: 0000 [#1]
Jun 6 17:43:37 host kernel: SMP
Jun 6 17:43:37 host kernel: Modules linked in: ipt_state ipt_TOS iptable_mangle ip_conntrack_ftp ip_conntrack_irc ip_conntr$
Jun 6 17:43:37 host kernel: CPU: 0
Jun 6 17:43:37 host kernel: EIP: 0060:[<c0140804>] Not tainted VLI
Jun 6 17:43:37 host kernel: EFLAGS: 00010006 (2.6.9-42.0.10.ELsmp)
Jun 6 17:43:37 host kernel: EIP is at find_get_page+0x20/0x3b
Jun 6 17:43:37 host kernel: eax: 04000000 ebx: 04000000 ecx: 00004d00 edx: 04000000
Jun 6 17:43:37 host kernel: esi: dc87b3d0 edi: 00000000 ebp: 00004d90 esp: f18c8e0c
Jun 6 17:43:37 host kernel: ds: 007b es: 007b ss: 0068
Jun 6 17:43:37 host kernel: Process httpd (pid: 20040, threadinfo=f18c8000 task=e15bc3b0)
Jun 6 17:43:37 host kernel: Stack: 00000000 dc87b320 c0140bde 00000246 00001000 00000000 0ffc5e52 00000000
Jun 6 17:43:37 host kernel: 00004d91 00004d92 0000ffc5 dc87b320 ccabee80 ccabeed0 dc87b3d0 00004d78
Jun 6 17:43:37 host kernel: 00000020 00000020 00004d90 00004d98 00000020 00000041 00000010 00000020
Jun 6 17:43:37 host kernel: Call Trace:
Jun 6 17:43:37 host kernel: [<c0140bde>] do_generic_mapping_read+0x149/0x445
Jun 6 17:43:37 host kernel: [<c0141142>] __generic_file_aio_read+0x19f/0x1bd
Jun 6 17:43:37 host kernel: [<c0140eda>] file_read_actor+0x0/0xc9
Jun 6 17:43:37 host kernel: [<c01411a0>] generic_file_aio_read+0x40/0x47
Jun 6 17:43:37 host kernel: [<c015ad71>] do_sync_read+0x97/0xc9
Jun 6 17:43:37 host kernel: [<c0107ab4>] do_IRQ+0x1a2/0x1ae
Jun 6 17:43:37 host kernel: [<c01204f5>] autoremove_wake_function+0x0/0x2d
Jun 6 17:43:37 host kernel: [<c02d2837>] schedule+0x8af/0x8db
Jun 6 17:43:37 host kernel: [<c015ae59>] vfs_read+0xb6/0xe2
Jun 6 17:43:37 host kernel: [<c015b06c>] sys_read+0x3c/0x62
Jun 6 17:43:37 host kernel: [<c02d4903>] syscall_call+0x7/0xb
Jun 6 17:43:37 host kernel: [<c02d007b>] packet_rcv+0x46/0x307
Jun 6 17:43:37 host kernel: ds: 007b es: 007b ss: 0068
Jun 6 17:43:37 host kernel: Process httpd (pid: 20040, threadinfo=f18c8000 task=e15bc3b0)
Jun 6 17:43:37 host kernel: Stack: 00000000 dc87b320 c0140bde 00000246 00001000 00000000 0ffc5e52 00000000
Jun 6 17:43:37 host kernel: 00004d91 00004d92 0000ffc5 dc87b320 ccabee80 ccabeed0 dc87b3d0 00004d78
Jun 6 17:43:37 host kernel: 00000020 00000020 00004d90 00004d98 00000020 00000041 00000010 00000020
Jun 6 17:43:37 host kernel: Call Trace:
Jun 6 17:43:37 host kernel: [<c0140bde>] do_generic_mapping_read+0x149/0x445
Jun 6 17:43:37 host kernel: [<c0141142>] __generic_file_aio_read+0x19f/0x1bd
Jun 6 17:43:37 host kernel: [<c0140eda>] file_read_actor+0x0/0xc9
Jun 6 17:43:37 host kernel: [<c01411a0>] generic_file_aio_read+0x40/0x47
Jun 6 17:43:37 host kernel: [<c015ad71>] do_sync_read+0x97/0xc9
Jun 6 17:43:37 host kernel: [<c0107ab4>] do_IRQ+0x1a2/0x1ae
Jun 6 17:43:37 host kernel: [<c01204f5>] autoremove_wake_function+0x0/0x2d
Jun 6 17:43:37 host kernel: [<c02d2837>] schedule+0x8af/0x8db
Jun 6 17:43:37 host kernel: [<c015ae59>] vfs_read+0xb6/0xe2
Jun 6 17:43:37 host kernel: [<c015b06c>] sys_read+0x3c/0x62
Jun 6 17:43:37 host kernel: [<c02d4903>] syscall_call+0x7/0xb
Jun 6 17:43:37 host kernel: [<c02d007b>] packet_rcv+0x46/0x307
Jun 6 17:43:37 host kernel: Code: e8 c7 fc fd ff 83 c4 40 5b 5e c3 56 89 c6 8d 40 10 53 89 d3 e8 6d 2d 19 00 89 da 8d 46 04$
Jun 6 17:43:37 host kernel: <0>Fatal exception: panic in 5 seconds

[Ricky]

It seems that have not much to say about it..
As I am not sure about this so we may try following..

1. Try a full system disk check ie. check your disk for errors..
If it doesn't solves then ..

Try to not to run httpd process and if see its happening or not because only suspect I get is httpd here.

if still nothing happens then try recompiling kernel...

It is showing problem of memory allocation..
it happens if..
1. Hardware is faulty.
2. if there is bug in software you are using.

Hope this helps !