On 15/07/14 16:43, Norman Wagner wrote:
> After a while (1h to 10h) SIPp crashes with following error
> message:
> 
> sipp: src/task.cpp:172: task_list* timewheel::task2list(task*): 
> Assertion `wheel_base <= clock_tick' failed. ./inv_with_auth.sh:
> line 14: 30059 Aborted                 (core dumped) sipp $1 -i
> $own_ip -sf INV_WITH_AUTH.xml -inf calls.csv -r 25 -l $2 -p 7777
> 
> This behaviour is new to me, because I ran big load tests with sipp
>  before without core dumps. Has anyone a guess, where this comes
> from?

Interesting - I've read through the code, and the only way I can see
this happening is if the system time moves backwards. This might
happen if ntpd is running and adjusting the clock - could you try
again with ntp turned off and see if the crash still happens?

If that works, I think I can make a fix in SIPp to avoid this.

Best,
Rob

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