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Subjectkernel oops + system crash
Date
Hi,

last night one of our servers crashed on a kernel oops
i was able to get the system up again but i am not shure
about what happend.
hopefully one of you can give me a hint. :)
i will try to give you all relevant informations :

System:
-------

Hardware:
- Mainboard: ASUS CUBX-E Rev.:1.01
BIOS Revision 1007.A
- Network: 3COM 3C905C - TX – M - Slot: 5
- SCSI RAID Controller: ICP Vortex GDT6518RD - Slot: 3
DiskArrayControllerBIOS Version:4.01a
- VGA: ATI Rage 98 AGP - Slot: AGP
- Memory: 1 x 256 MB PC133 Semicon - Dimm: 1
- CPU: Intel 800 Mhz Celeron
Socket 370 FC-PGA
- HDD: 2 x Seagate ST39173N - ID: 0 und 1
parity Jumper enanbled

Software:
- Mandrake Linux 7.2
- Kernel 2.2.19 + Reiser FS Version 3.5.32
- apache 1.3.14+php 4.0.4pl1
- mysql -3.23.31
- sendmail-8.11.0
- wu-ftpd-2.6.1

Oops DATA:
---------



output of ksymoops :

Options used: -V (default)
-o /lib/modules/2.2.19/ (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-m /boot/System.map (specified)
-c 1 (default)

No modules in ksyms, skipping objects
Warning, no symbols in lsmod, is /proc/modules a valid lsmod file?
Dec 17 04:02:02 cameron kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000000
Dec 17 04:02:02 cameron kernel: current->tss.cr3 = 0df9a000, %%cr3 =
0df9a000
Dec 17 04:02:02 cameron kernel: *pde = 00000000
Dec 17 04:02:02 cameron kernel: Oops: 0002
Dec 17 04:02:02 cameron kernel: CPU: 0
Dec 17 04:02:02 cameron kernel: EIP: 0010:[prune_dcache+47/340]
Dec 17 04:02:02 cameron kernel: EFLAGS: 00010216
Dec 17 04:02:02 cameron kernel: eax: c0206504 ebx: c9eec820 ecx:
c9eec840 edx: 00000000
Dec 17 04:02:02 cameron kernel: esi: c9b6f300 edi: 00001004 ebp:
00000000 esp: ce833ddc
Dec 17 04:02:02 cameron kernel: ds: 0018 es: 0018 ss: 0018
Dec 17 04:02:02 cameron kernel: Process slocate (pid: 10555, process nr: 85,
stackpage=ce833000)
Dec 17 04:02:02 cameron kernel: Stack: c020652c 00001004 00001004 c0131807
ffffef50 00000710 00000000 c022bf28
Dec 17 04:02:02 cameron kernel: c020652c c022bf28 00000807 000063f4
00001000 ce833e50 ce833e14 ce833e14
Dec 17 04:02:02 cameron kernel: c013186e 00001004 00000000 c022bf28
c020652c c022bf28 00000093 ce833ed0
Dec 17 04:02:02 cameron kernel: Call Trace: [try_to_free_inodes+199/264]
[grow_inodes+30/384] [get_new_inode+185/292] [iget4+102/112] [iget+19/24]
[reiserfs_iget+29/112] [reiserfs_lookup+98/144]
Dec 17 04:02:02 cameron kernel: Code: 89 02 8b 41 e4 a8 08 74 24 24 f7 89 41
e4 a1 04 65 20 c0 89
Warning: trailing garbage ignored on Code: line
Text: 'Code: 89 02 8b 41 e4 a8 08 74 24 24 f7 89 41 e4 a1 04 65 20 c0 89 '
Garbage: ' '

Code: 00000000 Before first symbol 00000000 <_IP>: <===
Code: 00000000 Before first symbol 0: 89 02
mov %eax,(%edx) <===
Code: 00000002 Before first symbol 2: 8b 41 e4
mov 0xffffffe4(%ecx),%eax
Code: 00000005 Before first symbol 5: a8 08
test $0x8,%al
Code: 00000007 Before first symbol 7: 74 24
je 0000002d Before first symbol
Code: 00000009 Before first symbol 9: 24 f7
and $0xf7,%al
Code: 0000000b Before first symbol b: 89 41 e4
mov %eax,0xffffffe4(%ecx)
Code: 0000000e Before first symbol e: a1 04 65 20 c0
mov 0xc0206504,%eax
Code: 00000013 Before first symbol 13: 89 00
mov %eax,(%eax)

Dec 17 10:46:27 cameron kernel: 3c59x.c 18Feb01 Donald Becker and others
http://www.scyld.com/network/vortex.html

4 warnings issued. Results may not be reliable.
--------------

it seems as if the oops was triggert bye one of the following cron jobs,
which are running at 4:02
/etc/cron.daily/tmpwatch
/etc/cron.daily/logrotate
/etc/cron.daily/makewhatis.cron
/etc/cron.daily/0anacron
/etc/cron.daily/htdig-dbgen
/etc/cron.daily/slocate.cron
but i wasnt able to discover which of them is responsible yes.


ok, hopefully this are enought informations ..if you need more please let me
know.

Kindly regards,
Nikolas





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