[Buildbot-devel] Buildbot / python segfault

[Gavin McDonald]

> -----Original Message-----
> From: Thomas Middeldorp [mailto:thomas at ranzer.geek.nz]
> Sent: Thursday, 1 December 2011 1:47 PM
> To: buildbot-devel list
> Subject: [Buildbot-devel] Buildbot / python segfault
> 
> Hi,
> 
> This may actually be a problem with python, but I thought I'd check if
anyone
> here has come across it before.
> 
> I'm currently having a problem where buildbot/python will segfault between
> a few times a day and once every few days. I haven't noticed any pattern
to
> what it's doing when it crashes, and the twistd.log just ends when it
crashes
> (no error output, no particular commands as far as I can tell).
> 
> The only indication of what's happened is a single line in syslog:
> Dec  1 15:03:57 medusa kernel: [615489.096586] buildbot[1364]: segfault at
> 1008 ip 00000000004d5ce0 sp 00007fffaac533b8 error 4 in
> python2.6[400000+21c000]
> 
> I've managed to get a core dump out of it, but none of the packages I have
> installed have debug info so I haven't been able to make any sense of the
> core.
> 
> Versions I have installed, server is Ubuntu 10.04.3 LTS:
> buildbot 0.8.5
> python 2.6.5
> twisted 11.0.0

I don't have suggestions I'm afraid, only a comparison:

http://ci.apache.org/about

.Buildbot: 0.8.5
.Twisted: 10.0.0
.Jinja: 2.3.1
.Python: 2.6.5 (r265:79063, Apr 16 2010, 13:57:41) [GCC 4.4.3]

also on Ubuntu 10.04.3 LTS

So only difference I see there is in fact , twisted.

Gav...

> 
> Not sure what else to give versions for... If anyone has any ideas or
> suggestions I'd be happy to hear them.
> 
> Thanks,
> Thomas
> 
> 
>
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