bleachbit.py assert failure: python: ../../src/xcb_io.c:274: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.

[Susan Cragin]

This is an odd little bug.
I run bleachbit properly, with no other programs running.
I start it with all options checked except System / Free Disk Space.
Sometimes it doesn't finish properly; it seems to finish and then does not.
And then, after I re-boot, this auto-generated error comes up.

Sometimes bleachbit works without this problem.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: bleachbit 0.9.6-1
ProcVersionSignature: Ubuntu 3.11.0-7.14-generic 3.11.1
Uname: Linux 3.11.0-7-generic x86_64
ApportVersion: 2.12.2-0ubuntu1
Architecture: amd64
AssertionMessage: python: ../../src/xcb_io.c:274: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
CrashCounter: 1
Date: Wed Sep 18 07:05:39 2013
ExecutablePath: /usr/share/bleachbit/bleachbit.py
InstallationDate: Installed on 2013-08-12 (37 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130811)
InterpreterPath: /usr/bin/python2.7
MarkForUpload: True
PackageArchitecture: all
ProcCmdline: python /usr/bin/bleachbit
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 LANGUAGE=en_US
 SHELL=/bin/bash
Signal: 6
SourcePackage: bleachbit
StacktraceTop:
 __assert_fail_base (fmt=0x7f23a190f3b8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7f239dfbfcd8 "!xcb_xlib_threads_sequence_lost", file=file@entry=0x7f239dfbfb23 "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0x7f239dfbffe6 "poll_for_event") at assert.c:92
 __GI___assert_fail (assertion=0x7f239dfbfcd8 "!xcb_xlib_threads_sequence_lost", file=0x7f239dfbfb23 "../../src/xcb_io.c", line=274, function=0x7f239dfbffe6 "poll_for_event") at assert.c:101
 ?? () 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
Title: bleachbit.py assert failure: python: ../../src/xcb_io.c:274: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 __assert_fail_base (fmt=0x7f23a190f3b8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7f239dfbfcd8 "!xcb_xlib_threads_sequence_lost", file=file@entry=0x7f239dfbfb23 "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0x7f239dfbffe6 <__PRETTY_FUNCTION__.14361> "poll_for_event") at assert.c:92
 __GI___assert_fail (assertion=assertion@entry=0x7f239dfbfcd8 "!xcb_xlib_threads_sequence_lost", file=file@entry=0x7f239dfbfb23 "../../src/xcb_io.c", line=line@entry=274, function=function@entry=0x7f239dfbffe6 <__PRETTY_FUNCTION__.14361> "poll_for_event") at assert.c:101
 poll_for_event (dpy=dpy@entry=0x1782060) at ../../src/xcb_io.c:271
 poll_for_response (dpy=dpy@entry=0x1782060) at ../../src/xcb_io.c:289
 _XEventsQueued (dpy=dpy@entry=0x1782060, mode=mode@entry=2) at ../../src/xcb_io.c:363

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.