CentOS - Aug 2010 - kernel panic not syncing fatal exception due to reiserfs -- rebooted properly on ext3

Hi
we had one of our mail servers , going on kernel panic mode  ( not syncing
fatal exception) ... cause /var/queue/postfix was on reiserfs part .. it has
not been giving us any isssue quite some time , but yesterday and today it
went on Kernel panic mode , when we hashed out the reiserfs part it booted
properly .. we formated the part^ on ext3 later and things working fine now
. Could any one have a idea why this could have happened . The server hung
at 19:52:56 hours
Here is the logs
------------------------------------------------------------------
ug 2 19:50:01 mmail2 snmpd[4460]: Connection from UDP: []:53980
Aug 2 19:50:55 mmail kernel: ReiserFS: sda6: warning: vs-13060:
reiserfs_update_sd: stat data of object [2 203562 0x0 SD] (nlink == 2) not
found (pos 1)
Aug 2 19:51:33 mmail last message repeated 2 times
Aug 2 19:52:34 mmail last message repeated 12 times
Aug 2 19:52:52 mmail kernel: ReiserFS: sda6: warning: vs-13060:
reiserfs_update_sd: stat data of object [2 203562 0x0 SD] (nlink == 2) not
found (pos 1)
Aug 2 19:52:56 mmail kernel: ReiserFS: warning: is_leaf: free space seems
wrong: level=1, nr_items=2, free_space=65512 rdkey
Aug 2 19:52:56 mmail kernel: ReiserFS: sda6: warning: vs-5150:
search_by_key: invalid format found in block 37030. Fsck?
Aug 2 19:52:56 mmail kernel: ReiserFS: sda6: warning: vs-13050:
reiserfs_update_sd: i/o failure occurred trying to update [2 203562 0x0 SD]
stat data
Aug 2 20:13:27 mmail syslogd 1.4.1: restart.
Aug 2 20:13:27 mmail kernel: klogd 1.4.1, log source = /proc/kmsg started.
Aug 2 20:13:27 mmail kernel: Linux version 2.6.18-128.el5 (
mockbuild at builder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat
4.1.2-44)) #1 SMP Wed Jan 21 10:41:14 EST 2009
Aug 2 20:13:27 mmail kernel: Command line: ro root=LABEL=/1 rhgb quiet
Aug 2 20:13:27 mmail kernel: BIOS-provided physical RAM map:
Aug 2 20:13:27 mmail kernel: BIOS-e820: 0000000000000000 - 00000000000a0000
(usable)
Aug 2 20:13:27 mmail kernel: BIOS-e820: 0000000000100000 - 00000000cfb50000
(usable)
Aug 2 20:13:27 mmail kernel: BIOS-e820: 00000000cfb50000 - 00000000cfb66000
(reserved)


-- 
Regards
Agnello D'souza
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On Mon, Aug 2, 2010 at 9:13 AM, Agnello George <agnello.dsouza at
gmail.com> wrote:
> Hi
> we had one of our mail servers , going on kernel panic mode? ( not syncing
> fatal exception) ... cause /var/queue/postfix was on reiserfs part .. it
has
> not been giving us any isssue quite some time , but yesterday and today it
> went on Kernel panic mode , when we hashed out the reiserfs part it booted
> properly .. we formated the part^ on ext3 later and things working fine now
> . Could any one have a idea why this could have happened . The server hung
> at 19:52:56 hours
> Here is the logs
> ------------------------------------------------------------------
> ug 2 19:50:01 mmail2 snmpd[4460]: Connection from UDP: []:53980
> Aug 2 19:50:55 mmail kernel: ReiserFS: sda6: warning: vs-13060:
> reiserfs_update_sd: stat data of object [2 203562 0x0 SD] (nlink == 2) not
> found (pos 1)
(snip)
> Aug 2 20:13:27 mmail syslogd 1.4.1: restart.
> Aug 2 20:13:27 mmail kernel: klogd 1.4.1, log source = /proc/kmsg started.
> Aug 2 20:13:27 mmail kernel: Linux version 2.6.18-128.el5
(snip)
> --
> Regards
> Agnello D'souza
This is a known problem and there is a patch for that:

http://bugs.centos.org/view.php?id=3156

Your kernel is so old (meaning many security holes). Please update the
system and while doing so, grab the centosplus kernel which has the
fix for this issue.

Akemi