kernel: trap divide error

[Igor Sysoev]

On Sun, Aug 24, 2008 at 01:03:03PM +0200, Olivier Bonvalet wrote:

> I use NginX 0.6.32-1 (the Debian sid package, recompiled for Debian 
> Etch) in a 64bit environnement (about 25M hits per day, per server).
> NginX is used to serve static contents, and send other queries to an 
> Apache server.
> 
> I have a lot of errors like this in my logs :
> Aug 24 01:48:13 fa20 kernel: nginx[10825] trap divide error ip:43bce1 
> sp:7fff4cd38160 error:0 in nginx[400000+6c000]
> Aug 24 01:48:18 fa20 kernel: nginx[10826] trap divide error ip:43bce1 
> sp:7fff4cd38160 error:0 in nginx[400000+6c000]
> Aug 24 01:48:48 fa20 kernel: nginx[11046] trap divide error ip:43bce1 
> sp:7fff4cd38160 error:0 in nginx[400000+6c000]
> Aug 24 01:49:01 fa20 kernel: nginx[11093] trap divide error ip:43bce1 
> sp:7fff4cd38160 error:0 in nginx[400000+6c000]
> 
> So I would like to know if it is a "kernel problem", an NginX problem, 
> or simply a problem in my NginX configuration.
> 
> From logs, errors started when I modify upstream configuration. For now 
> I use this :
>    upstream clusterweb {
>        server 127.0.0.1:81 weight=4 max_fails=0 fail_timeout=10s;
>        server 127.0.0.2:82    backup;
>    }
>    upstream clusterwebtest {
>        server 127.0.0.1:81 max_fails=0 fail_timeout=10s;
>        server X.X.X.X:81 max_fails=100 fail_timeout=10s;
>        server 127.0.0.2:82    backup;
>    }
> 
> The "clusterwebtest" upstream is used only for test, there is no trafic 
> at all on it.

This is nginx bug, use Maxim' patch.


-- 
Igor Sysoev
http://sysoev.ru/en/