metacity assert failure: metacity: ../../src/xcb_io.c:378: _XAllocID: Assertion `ret != inval_id' failed.

[jjdekroon]

Binary package hint: metacity

After Updating, my computer just froze, and after restarting it said some application was crashed.
According to the Bug Reporting applet it was a failure in the metacity package.

lsb_release -rd output:
Description: Ubuntu karmic (development branch)
Release: 9.10

apt-cache policy metacity output:
metacity:
  Installed: 1:2.28.0-0ubuntu1
  Candidate: 1:2.28.0-0ubuntu1
  Version table:
 *** 1:2.28.0-0ubuntu1 0
        500 http://nl.archive.ubuntu.com karmic/main Packages
        100 /var/lib/dpkg/status

ProblemType: Crash
Architecture: i386
AssertionMessage: metacity: ../../src/xcb_io.c:378: _XAllocID: Assertion `ret != inval_id' failed.
Date: Wed Oct 14 18:17:55 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/metacity
Package: metacity 1:2.28.0-0ubuntu1
ProcCmdline: metacity
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.46-generic
Signal: 6
SourcePackage: metacity
StacktraceTop:
 __kernel_vsyscall ()
 raise () from /lib/tls/i686/cmov/libc.so.6
 abort () from /lib/tls/i686/cmov/libc.so.6
 __assert_fail () from /lib/tls/i686/cmov/libc.so.6
 _XAllocID () from /usr/lib/libX11.so.6
Title: metacity assert failure: metacity: ../../src/xcb_io.c:378: _XAllocID: Assertion `ret != inval_id' failed.
Uname: Linux 2.6.31-14-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (gnome-settings-daemon:1777): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (polkit-gnome-authentication-agent-1:1947): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (nautilus:1909): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
 (gdu-notification-daemon:1946): GduNotification-WARNING **: No notification area. Notification bubbles will not be displayed.

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #444370, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.