Ubuntu
unity-2d package

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

Bug #853313 reported by Jared
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
unity-2d
New
Critical
Unassigned
unity-2d (Ubuntu)
New
Critical
Unassigned

Bug Description

Had just run an update / upgrade.
Noticed some unity files were updated and some unity files were updated.
Went to reboot, and noticed that the 'gear indicator' in the top right corner was missing and the me menu did not contain any log off, or shutdown options.
The launcher on the left side of the screen popped out, but would not scroll, after a short time, the error message was displayed.
As far as I knew I was running normal unity, not unity 2d

Description: Ubuntu oneiric (development branch)
Release: 11.10

unity-2d-launcher:
  Installed: 4.8.0-0ubuntu1
  Candidate: 4.8.0-0ubuntu1
  Version table:
 *** 4.8.0-0ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ oneiric/main i386 Packages
        100 /var/lib/dpkg/status

I expected to be able to select to shutdown my system, failing that I expected to launch a terminal from the launcher in order to issue the reboot command.

Instead, the launcher froze and the error message was displayed.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-2d-launcher 4.8.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic i686
ApportVersion: 1.23-0ubuntu1
Architecture: i386
Date: Sun Sep 18 11:59:47 2011
ExecutablePath: /usr/bin/unity-2d-launcher
InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
ProcCmdline: unity-2d-launcher
SegvAnalysis:
 Segfault happened at: 0x5840342 <_ZNK12QScriptValue6engineEv+18>: mov 0x4(%edx),%eax
 PC (0x05840342) ok
 source "0x4(%edx)" (0x89417406) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
 QScriptValue::engine() const () from /usr/lib/i386-linux-gnu/libQtScript.so.4
 ?? () from /usr/lib/i386-linux-gnu/libQtDeclarative.so.4
 ?? () from /usr/lib/i386-linux-gnu/libQtDeclarative.so.4
 ?? () from /usr/lib/i386-linux-gnu/libQtDeclarative.so.4
 ?? () from /usr/lib/i386-linux-gnu/libQtDeclarative.so.4
Title: unity-2d-launcher crashed with SIGSEGV in QScriptValue::engine()
UpgradeStatus: Upgraded to oneiric on 2011-09-12 (5 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare video

Revision history for this message
Jared (jared-vanvolkenburg) wrote :
visibility: private → public
Revision history for this message
Apport retracing service (apport) wrote :

StacktraceTop:
 q_func (this=0x89417402) at api/qscriptengine_p.h:152
 get (d=0x89417402) at api/qscriptengine_p.h:158
 QScriptValue::engine (this=0xa1e8920) at api/qscriptvalue.cpp:1827
 QDeclarativeObjectScriptClass::newQObject (this=0x95c3eb8, object=0xa3bed30, type=136) at qml/qdeclarativeobjectscriptclass.cpp:122
 QDeclarativeEnginePrivate::scriptValueFromVariant (this=0x959e0b8, val=...) at qml/qdeclarativeengine.cpp:2082

Revision history for this message
Apport retracing service (apport) wrote : Stacktrace.txt
Revision history for this message
Apport retracing service (apport) wrote : ThreadStacktrace.txt
Changed in unity-2d (Ubuntu):
importance: Undecided → Medium
tags: removed: need-i386-retrace
Florian Boucault (fboucault)
Changed in unity-2d:
importance: Undecided → Critical
Changed in unity-2d (Ubuntu):
importance: Medium → Critical
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