python2.7 crashed (randomly) with SIGABRT in raise()

[bericp1]

Crash report just popped up while using chrome, seemingly random.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: python2.7-minimal 2.7.2-13ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-12.21-generic 3.2.2
Uname: Linux 3.2.0-12-generic x86_64
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
Date: Sat Feb 4 01:14:03 2012
ExecutablePath: /usr/bin/python2.7
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120201.1)
ProcCmdline: python pyCracker.py
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=en_US.UTF-8
Signal: 6
SourcePackage: python2.7
StacktraceTop:
 raise () from /lib/x86_64-linux-gnu/libc.so.6
 abort () from /lib/x86_64-linux-gnu/libc.so.6
 __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
Title: python2.7 crashed with SIGABRT in raise()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 __GI___assert_fail (assertion=0x7f14e0e75da5 "!xcb_xlib_unknown_req_in_deq", file=<optimized out>, line=178, function=<optimized out>) at assert.c:81
 dequeue_pending_request (dpy=<optimized out>, req=<optimized out>) at ../../src/xcb_io.c:176
 _XReply (dpy=0x168da30, rep=0x7f14d7aa9f00, extra=0, discard=1) at ../../src/xcb_io.c:638
 XSync (dpy=0x168da30, discard=0) at ../../src/Sync.c:44
 ?? ()