apport-gtk assert failure: python: ../../src/xcb_io.c:273: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.

[Stefano Rivera]

After filing a bug, I got a blank "Problem detected" window for a few seconds, and then it crashed.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: apport-gtk 1.90-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-3.9-generic 3.2.0-rc4
Uname: Linux 3.2.0-3-generic x86_64
ApportVersion: 1.90-0ubuntu1
Architecture: amd64
AssertionMessage: python: ../../src/xcb_io.c:273: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
Date: Fri Dec 9 18:01:32 2011
DuplicateOf: https://bugs.launchpad.net/bugs/901675
ExecutablePath: /usr/share/apport/apport-gtk
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/share/apport/apport-gtk
ProcEnviron:
 LANGUAGE=en_ZA:en
 PATH=(custom, user)
 LANG=en_ZA.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: apport
StacktraceTop:
 __GI___assert_fail (assertion=0x7fb14aef6418 "!xcb_xlib_threads_sequence_lost", file=<optimized out>, line=273, function=<optimized out>) at assert.c:81
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 _XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 XPending () from /usr/lib/x86_64-linux-gnu/libX11.so.6
Title: apport-gtk assert failure: python: ../../src/xcb_io.c:273: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
UpgradeStatus: Upgraded to precise on 2011-06-08 (183 days ago)
UserGroups: adm admin cdrom dialout dip floppy fuse kvm lpadmin netdev plugdev powerdev sambashare scanner src video