linuxdcpp assert failure: linuxdcpp: ../../src/xcb_io.c:178: dequeue_pending_request: Assertion `!xcb_xlib_unknown_req_in_deq' failed.

[Moisa Doru]

$> lsb_release -rd
Description: Ubuntu oneiric (development branch)
Release: 11.10

$> sudo apt-cache policy linuxdcpp
linuxdcpp:
  Installed: 1.1.0-1ubuntu2
  Candidate: 1.1.0-1ubuntu2
  Version table:
 *** 1.1.0-1ubuntu2 0
        500 http://archive.ubuntu.com/ubuntu/ oneiric/universe amd64 Packages
        100 /var/lib/dpkg/status

Expected: normal startup
Actual: crash during startup

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: linuxdcpp 1.1.0-1ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3
Uname: Linux 3.0.0-9-generic x86_64
Architecture: amd64
AssertionMessage: linuxdcpp: ../../src/xcb_io.c:178: dequeue_pending_request: Assertion `!xcb_xlib_unknown_req_in_deq' failed.
Date: Sun Aug 28 19:00:40 2011
ExecutablePath: /usr/bin/linuxdcpp
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110705.1)
ProcCmdline: linuxdcpp
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: linuxdcpp
StacktraceTop:
 raise () from /lib/x86_64-linux-gnu/libc.so.6
 abort () 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
 _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
Title: linuxdcpp assert failure: linuxdcpp: ../../src/xcb_io.c:178: dequeue_pending_request: Assertion `!xcb_xlib_unknown_req_in_deq' failed.
UpgradeStatus: Upgraded to oneiric on 2011-08-24 (3 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 __GI___assert_fail (assertion=0x7f08531f0705 "!xcb_xlib_unknown_req_in_deq", file=<optimized out>, line=178, function=<optimized out>) at assert.c:81
 dequeue_pending_request (dpy=<optimized out>, req=<optimized out>) at ../../src/xcb_io.c:176
 _XReply (dpy=0x1d88490, rep=0x7f08480b3650, extra=0, discard=0) at ../../src/xcb_io.c:638
 XkbGetState (dpy=0x1d88490, deviceSpec=256, rtrn=0x7f08480b36a0) at ../../../src/xkb/XKB.c:489
 IA__gdk_keymap_get_direction (keymap=0x1e61de0) at /build/buildd/gtk+2.0-2.24.5/gdk/x11/gdkkeys-x11.c:761

[Steven Sheehy (steven-sheehy)]

Someone else has had this problem in bug #748842 and you can see my response to it in
https://bugs.launchpad.net/ubuntu/oneiric/+source/linuxdcpp/+bug/748842/comments/11

I don't see any potential workaround for it until we move to GtkBuilder since the issue seems to be in the libglade library itself. Since libglade is deprecated, I doubt they'll be fixing bugs in it either.

[Chinmay Rajhans (rajhanschinmay)]

Getting this error most of the times:

linuxdcpp: ../../src/xcb_io.c:140: dequeue_pending_request: Assertion `req == dpy->xcb->pending_requests' failed.
Aborted

Using Ubuntu 11.04 version and linuxdcpp 1.0.3 or core version 0.698.

Kindly post a possible solution.
Thank you.