We also had a similar problem like this on one of our long running servers although I didn't find some time to archive the logs. I'm not sure if it's related; but I can see clearly that you're using python2.4 and it has some funky issues with its memory management ( http://evanjones.ca/python-memory-part2.html).
We don't experience it anymore ever since we upgraded to python2.5. --- Alvin On Sun, Mar 22, 2009 at 11:10 PM, Christopher Armstrong < ra...@twistedmatrix.com> wrote: > On Sun, Mar 22, 2009 at 10:32 AM, Itamar Shtull-Trauring > <ita...@itamarst.org> wrote: > > On Sat, 2009-03-21 at 20:02 -0700, Alec Matusis wrote: > > > >> File "/nail/live/im/myserv/service.py", line 1199, in logout > >> > >> if self.nick in session.sellers: > >> > >> exceptions.AttributeError: WLResultSet instance has no > >> attribute 'sellers' > >> > >> > >> > >> This last error repeated about 1000 times for different clients, after > >> which the segfault occurred. > >> > >> The problem is, that “session” is an instance of a Session class that > >> is defined in the code, it is NEITHER a Deferred NOR an instance of > >> WLResultSet class- these are completely different classes, and there’s > >> no possible way in the code for variable session to become an instance > >> of Deferred. > > > > I've seen this happen - once. My guess then was memory corruption of > > some sort (somewhere in the C level). If you have any custom C > > extensions you might want to try valgrind. > > I'd like to offer a slightly stronger suggestion that this segfault is > not the fault of any pure Python code (such as Twisted), but rather > some C extension that you're using, or perhaps a bug in the Python > runtime itself. The weird attribute errors for the wrong classes are > probably caused by memory corruption leading up to the segfault. > > > -- > Christopher Armstrong > http://radix.twistedmatrix.com/ > http://planet-if.com/ > http://canonical.com/ > > _______________________________________________ > Twisted-Python mailing list > Twisted-Python@twistedmatrix.com > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python > -- http://www.alvinatorsplayground.blogspot.com/
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