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[Bug 853038] Re: compiz crashed with SIGSEGV in __dynamic_cast()

To: dx-packages@xxxxxxxxxxxxxxxxxxx
From: Barry Drake <b.drake@xxxxxxxxxxxx>
Date: Wed, 26 Feb 2014 11:05:08 -0000
Reply-to: Bug 853038 <853038@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Occurred this morning while working with some large text files.  Update
to Trusty was taken last night.  The desktop froze, shut down and re-
started after a few seconds as though nothing had happened.

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https://bugs.launchpad.net/bugs/853038

Title:
  compiz crashed with SIGSEGV in __dynamic_cast()

Status in Unity:
  Fix Released
Status in “unity” package in Ubuntu:
  Fix Released

Bug description:
  Appeared shortly after I logged into unity session.

  ProblemType: Crash
  DistroRelease: Ubuntu 11.10
  Package: unity 4.16.0-0ubuntu1
  ProcVersionSignature: Ubuntu 3.0.0-11.18-generic-pae 3.0.4
  Uname: Linux 3.0.0-11-generic-pae i686
  NonfreeKernelModules: nvidia
  ApportVersion: 1.23-0ubuntu1
  Architecture: i386
  CrashCounter: 1
  Date: Sun Sep 18 09:03:31 2011
  ExecutablePath: /usr/bin/compiz
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
  ProcCmdline: compiz
  ProcEnviron:
   PATH=(cususername, user)
   LANG=cs_CZ.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0xb6f618b8 <__dynamic_cast+40>:	mov    (%eax),%edx
   PC (0xb6f618b8) ok
   source "(%eax)" (0x0000015b) not located in a known VMA region (needed readable region)!
   destination "%edx" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: unity
  StacktraceTop:
   __dynamic_cast () from /usr/lib/i386-linux-gnu/libstdc++.so.6
   DebugDBusInterface::OnBusAcquired(_GDBusConnection*, char const*, void*) () from /usr/lib/compiz/libunityshell.so
   ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
   g_simple_async_result_complete () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
   ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
  Title: compiz crashed with SIGSEGV in __dynamic_cast()
  UpgradeStatus: Upgraded to oneiric on 2011-09-14 (3 days ago)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare video

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