update-manager assert failure: python2.7: ../../src/xcb_io.c:462: _XAllocID: Assertion `ret != inval_id' failed.

[Ian Baker]

Binary package hint: update-manager

Error occurs when clicking Cancel on the Authenticate screen.

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:462: _XAllocID: Assertion `ret != inval_id' failed.
CrashCounter: 1
Date: Sun Mar 27 10:50:18 2011
ExecutablePath: /usr/bin/update-manager
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110302)
InterpreterPath: /usr/bin/python2.7
ProcCmdline: /usr/bin/python2.7 /usr/bin/update-manager
ProcEnviron:
 LANGUAGE=en_GB:en
 LANG=en_GB.UTF-8
 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
 _XAllocID () from /usr/lib/i386-linux-gnu/libX11.so.6
Title: update-manager assert failure: python2.7: ../../src/xcb_io.c:462: _XAllocID: Assertion `ret != inval_id' failed.
UpgradeStatus: Upgraded to natty on 2011-03-25 (2 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 __kernel_vsyscall ()
 raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
 abort () at abort.c:92
 __assert_fail (assertion=0x5a41926 "ret != inval_id", file=0x5a418ef "../../src/xcb_io.c", line=462, function=0x5a41c06 "_XAllocID") at assert.c:81
 _XAllocID (dpy=0x8b64878) at ../../src/xcb_io.c:462