unity-2d-shell crashed with SIGABRT in Unity2dDebug::unity2dQtHandler()

[Phil Wieland]

This is caused by a remote login using NX nomachine. On the remote machine I get a desktop with icons but no left hand side column of symbols.

The host machine continues to function normally on its local screen.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity-2d-shell 5.8.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic-pae 3.2.6
Uname: Linux 3.2.0-17-generic-pae i686
ApportVersion: 1.95-0ubuntu1
Architecture: i386
CrashCounter: 1
Date: Fri Mar 23 21:07:10 2012
ExecutablePath: /usr/bin/unity-2d-shell
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
ProcCmdline: unity-2d-shell
ProcEnviron:
 LANGUAGE=en_GB:en
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: unity-2d
Title: unity-2d-shell crashed with SIGABRT in raise()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 Unity2dDebug::unity2dQtHandler (type=QtFatalMsg, message=0x8d34250 "ASSERT: \"m_barrier != 0\" in file /build/buildd/unity-2d-5.8.0/libunity-2d-private/src/pointerbarrier.cpp, line 174") at /build/buildd/unity-2d-5.8.0/libunity-2d-private/src/unity2ddebug.cpp:89
 qt_message_output (msgType=QtFatalMsg, buf=0x8d34250 "ASSERT: \"m_barrier != 0\" in file /build/buildd/unity-2d-5.8.0/libunity-2d-private/src/pointerbarrier.cpp, line 174") at global/qglobal.cpp:2203
 qt_message (msgType=QtFatalMsg, msg=0xb75fe718 "ASSERT: \"%s\" in file %s, line %d", ap=0xbfb7ba54 "\343c1\266\344b1\266\256") at global/qglobal.cpp:2322
 qFatal (msg=0xb75fe718 "ASSERT: \"%s\" in file %s, line %d") at global/qglobal.cpp:2505
 qt_assert (assertion=0xb63163e3 "m_barrier != 0", file=0xb63162e4 "/build/buildd/unity-2d-5.8.0/libunity-2d-private/src/pointerbarrier.cpp", line=174) at global/qglobal.cpp:2002

[Phil Wieland (launchpad-philwieland)]

I'm not sure which update is responsible but after upgrading umpteen packages over the last two days, this now works fine.