Is there anything in your logs after you experience the segfault (see launchpad bug #377226 - https://bugs.launchpad.net/bugs/377226)?
Yes, syslog reports:
May 17 00:44:18 aspirex1700 kernel: [433338.451566] python[10843] segfault
at 530010 ip 000000000045dccc sp 00007fff2c00c498 err
or 4 in python2.5[400000+124000] -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
