unity-2d-launcher crashed with SIGSEGV in QList<AbstractX11EventFilter*>::removeAll()

[Paul White]

Binary package hint: unity-2d

Nothing much to report. Rebooted PC, started Unity-2D and Opera. Crash dialog appeared.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: unity-2d-launcher 3.6.1-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-generic i686
Architecture: i386
Date: Sun Feb 27 16:25:16 2011
ExecutablePath: /usr/bin/unity-2d-launcher
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110212)
ProcCmdline: unity-2d-launcher
ProcEnviron:
 LANGUAGE=en_GB:en
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x599197 <_ZN5QListIP22AbstractX11EventFilterE9removeAllERKS1_+23>: mov (%edx),%eax
 PC (0x00599197) ok
 source "(%edx)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
 QList<AbstractX11EventFilter*>::removeAll(AbstractX11EventFilter* const&) () from /usr/lib/libunity-2d-private.so.0
 Unity2dApplication::removeX11EventFilter(AbstractX11EventFilter*) () from /usr/lib/libunity-2d-private.so.0
 AbstractX11EventFilter::~AbstractX11EventFilter() () from /usr/lib/libunity-2d-private.so.0
 KeyboardModifiersMonitor::~KeyboardModifiersMonitor() () from /usr/lib/libunity-2d-private.so.0
 KeyboardModifiersMonitor::~KeyboardModifiersMonitor() () from /usr/lib/libunity-2d-private.so.0
Title: unity-2d-launcher crashed with SIGSEGV in QList<AbstractX11EventFilter*>::removeAll()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 detachShared (this=0x8, _t=@0xbfbecad4) at /usr/include/qt4/QtCore/qlist.h:131
 QList<AbstractX11EventFilter*>::removeAll (this=0x8, _t=@0xbfbecad4) at /usr/include/qt4/QtCore/qlist.h:758
 Unity2dApplication::removeX11EventFilter (this=0x0, filter=0x8533738) at /build/buildd/unity-2d-3.6.1/libunity-2d-private/src/unity2dapplication.cpp:49
 AbstractX11EventFilter::~AbstractX11EventFilter (this=0x8533738, __in_chrg=<value optimized out>) at /build/buildd/unity-2d-3.6.1/libunity-2d-private/src/unity2dapplication.cpp:29
 KeyboardModifiersMonitor::~KeyboardModifiersMonitor (this=0x8533730, __in_chrg=<value optimized out>) at /build/buildd/unity-2d-3.6.1/libunity-2d-private/src/keyboardmodifiersmonitor.cpp:67