[CentOS] netfilter kernel crash in ip_ct_refresh_acct / ip_conntrack with centos 5.x

Akemi Yagi amyagi at gmail.com
Tue Sep 16 11:22:00 UTC 2008


On Tue, Sep 16, 2008 at 12:38 AM, Pasi Kärkkäinen <pasik at iki.fi> wrote:
> Hello!
>
> Has anyone seen this netfilter kernel crash?
>
> Images from the console of the crashed firewall:
> http://pasik.reaktio.net/centos5-kernel-crash/
>
> Firewall is HP DL360 G4 server running CentOS 5.x 32 bit.
>
> I've seen this firewall crashing multiple times, but I only started investigating it lately..
>
> It has happened using CentOS 5.0, 5.1 and now also with 5.2. I'm not sure if
> it was the same bug earlier, but at least the last two times (with CentOS 5.2)
> it has been the same, see screenshots.
>
> Last lines of the console output:
>
> EIP: [<f8af2c5c>] __ip_ct_refresh_acct+0xa1/0x129 [ip_conntrack] SS:ESP 0068:c0724e4c
>  <0>Kernel panic - not syncing: Fatal exception in interrupt
>
> At the moment firewall is running CentOS 5.2, Linux kernel 2.6.18-92.1.10.el5.centos.plus.
>
> Any tips how to resolve this?

You might want to look at this upstream bugzilla:

https://bugzilla.redhat.com/show_bug.cgi?id=456664

There is a quick fix in comment #24 that you can try out without
having to rebuild kernel.

Akemi


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