update-manager assert failure: python2.6: ../../src/xcb_io.c:249: process_responses: Assertion `(((long) (dpy->last_request_read) - (long) (dpy->request)) <= 0)' failed.

[Jørgen Skjånes]

Binary package hint: update-manager

It just crashed while it was doing a partial upgrade. Ubuntu 10.04 alpha2.

ProblemType: Crash
Architecture: amd64
AssertionMessage: python2.6: ../../src/xcb_io.c:249: process_responses: Assertion `(((long) (dpy->last_request_read) - (long) (dpy->request)) <= 0)' failed.
Date: Wed Jan 20 18:05:39 2010
DistroRelease: Ubuntu 10.04
ExecutablePath: /usr/bin/update-manager
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100113)
InterpreterPath: /usr/bin/python2.6
NonfreeKernelModules: nvidia
Package: update-manager 1:0.131.3
PackageArchitecture: all
ProcAttrCurrent: unconfined (enforce)
ProcCmdline: /usr/bin/python2.6 /usr/bin/update-manager --dist-upgrade
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-10.14-generic
Signal: 6
SourcePackage: update-manager
StacktraceTop:
 raise () from /lib/libc.so.6
 abort () from /lib/libc.so.6
 __assert_fail () from /lib/libc.so.6
 ?? () from /usr/lib/libX11.so.6
 _XReadEvents () from /usr/lib/libX11.so.6
Tags: lucid
Title: update-manager assert failure: python2.6: ../../src/xcb_io.c:249: process_responses: Assertion `(((long) (dpy->last_request_read) - (long) (dpy->request)) <= 0)' failed.
Uname: Linux 2.6.32-10-generic x86_64
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 *__GI_raise (sig=<value optimized out>)
 *__GI_abort () at abort.c:92
 *__GI___assert_fail (
 process_responses (dpy=0xff73b0,
 _XReadEvents (dpy=0xff73b0)

[Jean-Baptiste Lallement (jibel)]

Thanks for your report.
This is hardly an update-manager issue. Affecting to libxcb.
Are you able to reproduce it ? If so, could you please describe the steps to do so. Thanks.

[Cees de Groot (casedeg)]

FYI, also happens using vmware-player 3.0.1 on current Lucid:

vmware-vmx: ../../src/xcb_io.c:249: process_responses: Assertion `(((long) (dpy->last_request_read) - (long) (dpy->request)) <= 0)' failed.
Unexpected signal: 6.

(meta-bug: these xcb-related bugs seem all so large, FF grinds to a halt displaying them :-))