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[Bug 980982] Re: unity-2d-shell crashed with SIGSEGV in QMetaObject::changeGuard()

To: dx-packages@xxxxxxxxxxxxxxxxxxx
From: John Pye <980982@xxxxxxxxxxxxxxxxxx>
Date: Wed, 04 Jun 2014 23:59:59 -0000
Reply-to: Bug 980982 <980982@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

still critical? I just experienced this error now on Ubuntu 12.04,
latest updated version, 64-bit.

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https://bugs.launchpad.net/bugs/980982

Title:
  unity-2d-shell crashed with SIGSEGV in QMetaObject::changeGuard()

Status in Unity 2D:
  Confirmed
Status in “unity-2d” package in Ubuntu:
  Confirmed

Bug description:
  -

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: unity-2d-shell 5.10.0-0ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  Uname: Linux 3.2.0-23-generic x86_64
  ApportVersion: 2.0.1-0ubuntu2
  Architecture: amd64
  Date: Fri Apr 13 18:58:18 2012
  ExecutablePath: /usr/bin/unity-2d-shell
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  ProcCmdline: unity-2d-shell
  SegvAnalysis:
   Segfault happened at: 0x7f5ffceda879 <_ZN11QMetaObject11changeGuardEPP7QObjectS1_+473>:	mov    0x8(%rax),%rax
   PC (0x7f5ffceda879) ok
   source "0x8(%rax)" (0x81d12082d1b5d0c2) not located in a known VMA region (needed readable region)!
   destination "%rax" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: unity-2d
  StacktraceTop:
   QMetaObject::changeGuard(QObject**, QObject*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
   Application::setBamfApplication(BamfApplication*) () from /usr/lib/libunity-2d-private.so.0
   ApplicationsList::insertBamfApplication(BamfApplication*) () from /usr/lib/libunity-2d-private.so.0
   QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
   BamfMatcher::ViewOpened(BamfView*) () from /usr/lib/libQtBamf.so.1
  Title: unity-2d-shell crashed with SIGSEGV in QMetaObject::changeGuard()
  UpgradeStatus: Upgraded to precise on 2012-03-23 (20 days ago)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare vboxusers

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