gnome-settings-daemon crashed with SIGABRT in __assert_fail_base()

[Jakbest]

Description: Ubuntu precise (development branch)
Release: 12.04
  Installato: 3.3.91-0ubuntu1
  Candidato: 3.3.91-0ubuntu1
  Tabella versione:
 *** 3.3.91-0ubuntu1 0
        500 http://it.archive.ubuntu.com/ubuntu/ precise/main i386 Packages
        100 /var/lib/dpkg/status

I can't give more information, I hope it will still be useful.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: gnome-settings-daemon 3.3.91-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-18.28-generic-pae 3.2.9
Uname: Linux 3.2.0-18-generic-pae i686
NonfreeKernelModules: fglrx
ApportVersion: 1.94-0ubuntu1
Architecture: i386
Date: Tue Mar 6 16:02:34 2012
ExecutablePath: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120217)
ProcCmdline: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
Signal: 6
SourcePackage: gnome-settings-daemon
StacktraceTop:
 raise () from /lib/i386-linux-gnu/libc.so.6
 abort () from /lib/i386-linux-gnu/libc.so.6
 ?? () from /lib/i386-linux-gnu/libc.so.6
 __assert_fail () from /lib/i386-linux-gnu/libc.so.6
 ?? () from /usr/lib/i386-linux-gnu/libX11.so.6
Title: gnome-settings-daemon crashed with SIGABRT in raise()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

This crash has the same stack trace characteristics as bug #833694. However, the latter was already fixed in an earlier package version than the one in this report. This might be a regression or because the problem is in a dependent package.

[Apport retracing service (apport)]

StacktraceTop:
 __assert_fail_base (fmt=0xb655a698 <Address 0xb655a698 out of bounds>, assertion=0xb6d3ea90 "!xcb_xlib_threads_sequence_lost", file=0xb6d3ecea "../../src/xcb_io.c", line=273, function=0xb6d3edd8 "poll_for_event") at assert.c:94
 __GI___assert_fail (assertion=0xb6d3ea90 "!xcb_xlib_threads_sequence_lost", file=0xb6d3ecea "../../src/xcb_io.c", line=273, function=0xb6d3edd8 "poll_for_event") at assert.c:103
 poll_for_event (dpy=0x842d818) at ../../src/xcb_io.c:270
 poll_for_response (dpy=0x842d818) at ../../src/xcb_io.c:288
 _XEventsQueued (dpy=0x842d818, mode=2) at ../../src/xcb_io.c:362