update-manager failed

[santa]

Binary package hint: update-manager

Tried to update pre 11.04 system today.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: update-manager 1:0.146.5
ProcVersionSignature: Ubuntu 2.6.38-7.38-generic 2.6.38
Uname: Linux 2.6.38-7-generic i686
Architecture: i386
AssertionMessage: python2.7: ../../src/xcb_io.c:221: poll_for_event: Assertion `(((long) (event_sequence) - (long) (dpy->request)) <= 0)' failed.
Date: Tue Mar 22 23:35:04 2011
ExecutablePath: /usr/bin/update-manager
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
InterpreterPath: /usr/bin/python2.7
ProcCmdline: /usr/bin/python2.7 /usr/bin/update-manager --dist-upgrade
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 LANGUAGE=en_GB:en
 SHELL=/bin/bash
Signal: 6
SourcePackage: update-manager
StacktraceTop:
 __kernel_vsyscall ()
 raise () from /lib/i386-linux-gnu/libc.so.6
 abort () from /lib/i386-linux-gnu/libc.so.6
 __assert_fail () from /lib/i386-linux-gnu/libc.so.6
 ?? ()
Title: update-manager assert failure: python2.7: ../../src/xcb_io.c:221: poll_for_event: Assertion `(((long) (event_sequence) - (long) (dpy->request)) <= 0)' failed.
UpgradeStatus: Upgraded to natty on 2011-03-22 (0 days ago)
UserGroups:

[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 #727241, 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.