ibus-x11 crashed with SIGABRT in __assert_fail_base()

[Ufuk Ulusoy]

suddenly crashed ubuntu.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: ibus 1.4.0-3ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.94-0ubuntu1
Architecture: amd64
Date: Sun Mar 4 02:08:17 2012
ExecutablePath: /usr/lib/x86_64-linux-gnu/ibus/ibus-x11
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcCmdline: /usr/lib/x86_64-linux-gnu/ibus/ibus-x11 --kill-daemon
Signal: 6
SourcePackage: ibus
StacktraceTop:
 raise () from /lib/x86_64-linux-gnu/libc.so.6
 abort () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () 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
Title: ibus-x11 crashed with SIGABRT in raise()
UpgradeStatus: Upgraded to precise on 2012-03-03 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 __assert_fail_base (fmt=<optimized out>, assertion=0x7f8f95ad6b78 "!xcb_xlib_threads_sequence_lost", file=0x7f8f95ad6e32 "../../src/xcb_io.c", line=<optimized out>, function=<optimized out>) at assert.c:94
 __GI___assert_fail (assertion=0x7f8f95ad6b78 "!xcb_xlib_threads_sequence_lost", file=0x7f8f95ad6e32 "../../src/xcb_io.c", line=273, function=0x7f8f95ad6f58 "poll_for_event") at assert.c:103
 poll_for_event (dpy=<optimized out>) at ../../src/xcb_io.c:270
 poll_for_response (dpy=0xefdd80) at ../../src/xcb_io.c:288
 _XEventsQueued (dpy=0xefdd80, mode=<optimized out>) at ../../src/xcb_io.c:362

[Launchpad Janitor (janitor)]

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