kernel: trap divide error

[Olivier Bonvalet]

Thanks a lot, it works. ;)

Olivier Bonvalet

Maxim Dounin a écrit :
> Hello!
>
> On Sun, Aug 24, 2008 at 01:03:03PM +0200, Olivier Bonvalet wrote:
>
>> Hello,
>>
>> 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;
>
> The max_fails=0 known to be broken in 0.6.* (and 0.7.*) since 0.6.6.  
> I've sent a patch to Igor some time ago, but it looks like he forgot it.
>
> Don't use max_fails=0 or try the attached patch.
>
> Maxim Dounin