unity-2d-launcher crashed with SIGSEGV in QScriptValue::engine()

[SarahSlean]

crash suddenly (virtualbox used)

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-2d-launcher 4.0.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-8.10-generic 3.0.1
Uname: Linux 3.0.0-8-generic i686
Architecture: i386
Date: Fri Aug 12 19:50:45 2011
ExecutablePath: /usr/bin/unity-2d-launcher
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110803.1)
ProcCmdline: unity-2d-launcher
ProcEnviron:
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x2b24c0a <_ZNK12QScriptValue6engineEv+10>: mov (%eax),%edx
 PC (0x02b24c0a) ok
 source "(%eax)" (0x00010000) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
 QScriptValue::engine() const () from /usr/lib/libQtScript.so.4
 ?? () from /usr/lib/libQtDeclarative.so.4
 ?? () from /usr/lib/libQtDeclarative.so.4
 ?? () from /usr/lib/libQtDeclarative.so.4
 ?? () from /usr/lib/libQtDeclarative.so.4
Title: unity-2d-launcher crashed with SIGSEGV in QScriptValue::engine()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Alberto Mardegan (mardy)]

Thank you for reporting this bug.

Given the problem in processing the stack trace, and given that we have bug 801161 which is also about a crash in the same function (but we have more info on that bug), I'll mark this bug as duplicate.