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
