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Re: Kernel panic help

To: Julian Anastasov <ja@xxxxxx>
Subject: Re: Kernel panic help
Cc: <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
From: Aymeric BLAZY <ablazy@xxxxxxxxxxxxxx>
Date: Tue, 30 Oct 2001 13:39:46 +0100
Thank you for replying!

At 14:43 30/10/2001 +0200, Julian Anastasov wrote:
> Hi,
>
> I am using ipvs ver 0.8.2, ipvsadm v1.17 2001/03/18, on a redhat-7.1 server
> with kernel 2.4.9 and lc policy in DR architecture.
> After one day of heavy traffic, my server make a kernel panic and i am
> unable to find for what reason.
> I have activate Sysreq magic key but, i am unable to trace nothing when
> kernel panic occurs.
> I first investigate memory problems on my server and obtain with memtester
> application some kernel BUG.
>
> Oct 29 10:35:07 lvs kernel: ------------[ cut here ]------------
> Oct 29 10:35:07 lvs kernel: kernel BUG at vmscan.c:302!
> Oct 29 10:35:07 lvs kernel: invalid operand: 0000
> Oct 29 10:35:07 lvs kernel: CPU:    0
> Oct 29 10:35:07 lvs kernel: EIP: 0010:[swap_out_vma+83/224] Not tainted
> Oct 29 10:35:07 lvs kernel: EIP:    0010:[<c012e233>]    Not tainted
> Oct 29 10:35:07 lvs kernel: EFLAGS: 00010286
> Oct 29 10:35:07 lvs kernel: eax: 0000001c   ebx: 434e4555   ecx:
> 00000001   edx: 0001688f
> Oct 29 10:35:07 lvs kernel: esi: 00000008   edi: 00000008   ebp:
> a3434e45   esp:
>   c1641f34
> Oct 29 10:35:07 lvs kernel: ds: 0018   es: 0018   ss: 0018
> Oct 29 10:35:07 lvs kernel: Process kswapd (pid: 5, stackpage=c1641000)
>
> Someone help to diagnose first the reason of the kernel panic ?

        Very difficult situation. If you are lucky and with IPVS
compiled in, may be you can find a better oops. But in any case
using a 2.4.9 kernel is not a good decision. IIRC, "Not tainted" is
printed from 2.4.11+ ?? Are you really using 2.4.9?

Well, it's the case. I am running 2.4.9 kernel.
[root@lvs tmp]# cat /proc/sys/kernel/osrelease
2.4.9-6
installed with the kernel updates rpm from ftp.redhat.com/updates/
The ipvs are compiled separatly from http://www.linuxvirtualserver.org/software/kernel-2.4/ipvs-0.8.2.tar.gz using the kernel 2.4.9 rpm source pakcage.

Why do you think running a 2.4.9 kernel is not a good decision ? Wich kernel version can i run then ?

Thank you in advance...
Looking for another oops tracking utily anyway...

Regards



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