unity-2d-shell crashed with SIGSEGV in data()

[Joao Rita]

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ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity-2d-shell 5.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-39.86-generic 2.6.32.56+drm33.22
Uname: Linux 2.6.32-39-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.92-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Wed Feb 22 17:16:43 2012
ExecutablePath: /usr/bin/unity-2d-shell
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
ProcCmdline: unity-2d-shell
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_GB.utf8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f659b8183c0 <_ZNK12QScriptValue6engineEv>: mov (%rdi),%rax
 PC (0x7f659b8183c0) ok
 source "(%rdi)" (0x6f273d6563616672) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
 QScriptValue::engine() const () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
 QDeclarativeObjectScriptClass::newQObject (this=0x14de5f0, object=<optimized out>, type=136) at qml/qdeclarativeobjectscriptclass.cpp:130
 QDeclarativeEnginePrivate::scriptValueFromVariant (this=0x14a1860, val=...) at qml/qdeclarativeengine.cpp:2093
 QDeclarativeObjectScriptClass::property (this=<optimized out>, obj=0x493d970, name=<optimized out>) at qml/qdeclarativeobjectscriptclass.cpp:320
 QDeclarativeContextScriptClass::property (this=0x14dddc0, object=<optimized out>, name=<optimized out>) at qml/qdeclarativecontextscriptclass.cpp:289
Title: unity-2d-shell crashed with SIGSEGV in QScriptValue::engine()
UpgradeStatus: Upgraded to precise on 2012-02-21 (1 days ago)
UserGroups: adm admin audio cdrom dialout fuse lpadmin mediatomb plugdev sambashare video

[Apport retracing service (apport)]

StacktraceTop:
 data (this=0x6f273d6563616672) at ../../include/QtCore/../../src/corelib/tools/qshareddata.h:145
 qGetPtrHelper<QExplicitlySharedDataPointer<QScriptValuePrivate> > (p=...) at ../../include/QtCore/../../src/corelib/global/qglobal.h:2430
 d_func (this=0x6f273d6563616672) at api/qscriptvalue.h:211
 QScriptValue::engine (this=0x6f273d6563616672) at api/qscriptvalue.cpp:1831
 QDeclarativeObjectScriptClass::newQObject (this=0x14de5f0, object=<optimized out>, type=136) at qml/qdeclarativeobjectscriptclass.cpp:130

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.