compiz crashed with SIGSEGV in g_object_unref()

[Steve Langasek]

I don't know what caused this problem, but compiz crashed and scrambled all the windows on my desktop upon restarting.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: unity 7.0.0daily13.04.18~13.04-0ubuntu1
ProcVersionSignature: Ubuntu 3.9.0-2.6-generic 3.9.2
Uname: Linux 3.9.0-2-generic x86_64
ApportVersion: 2.10.1-0ubuntu1
Architecture: amd64
Date: Fri May 17 15:37:07 2013
ExecutablePath: /usr/bin/compiz
InstallationDate: Installed on 2010-09-24 (968 days ago)
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
MarkForUpload: True
ProcCmdline: compiz --sm-client-id 1094a19fdf1aaee48f136505634181450900000038250047
SegvAnalysis:
 Segfault happened at: 0x7ff122d04e04 <g_object_unref+20>: cmpq $0x50,(%rax)
 PC (0x7ff122d04e04) ok
 source "$0x50" ok
 destination "(%rax)" (0xaaaaaaaaaaaaaaaa) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 g_object_unref (_object=0x2645550) at /build/buildd/glib2.0-2.37.0/./gobject/gobject.c:3081
 unity::bamf::Application::~Application() () from /usr/lib/compiz/libunityshell.so
 unity::bamf::Application::~Application() () from /usr/lib/compiz/libunityshell.so
 std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() () from /usr/lib/compiz/libunityshell.so
 unity::launcher::ApplicationLauncherIcon::~ApplicationLauncherIcon() () from /usr/lib/compiz/libunityshell.so
Title: compiz crashed with SIGSEGV in g_object_unref()
UpgradeStatus: Upgraded to saucy on 2013-05-06 (13 days ago)
UserGroups: adm admin cdrom dialout libvirtd lpadmin mythtv plugdev sambashare src sudo

[Apport retracing service (apport)]

StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 ?? ()
 ~View (this=0x2645728, __in_chrg=<optimized out>) at /build/buildd/unity-7.0.0daily13.04.18~13.04/unity-shared/../unity-shared/BamfApplicationManager.h:34

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1181717, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.