compiz crashed with SIGSEGV in unity::dash::previews::CoverArt::SetNoImageAvailable()

[Hatem MASMOUDI]

Ubuntu 12.10 Beta 2.

Stress unity preview with mouse select and unselect

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: unity 6.4.0-0ubuntu4
ProcVersionSignature: Ubuntu 3.5.0-13.14-generic 3.5.3
Uname: Linux 3.5.0-13-generic x86_64
ApportVersion: 2.5.1-0ubuntu7
Architecture: amd64
CrashCounter: 1
Date: Fri Sep 7 20:14:20 2012
Disassembly: => 0x0: Cannot access memory at address 0x0
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120905.2)
ProcCmdline: compiz
ProcEnviron:
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x0: Cannot access memory at address 0x0
 PC (0x00000000) not located in a known VMA region (needed executable region)!
SegvReason: executing NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 ?? ()
 unity::dash::previews::CoverArt::SetNoImageAvailable() () from /usr/lib/compiz/libunityshell.so
 ?? () from /usr/lib/compiz/libunityshell.so
 unity::glib::Source::SourceCallback(void*) () from /usr/lib/libunity-core-6.0.so.5
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: compiz crashed with SIGSEGV in unity::dash::previews::CoverArt::SetNoImageAvailable()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 ?? ()
 unity::dash::previews::CoverArt::AddProperties(_GVariantBuilder*) () from /tmp/tmpPjOtnt/usr/lib/compiz/libunityshell.so
 g_timeout_dispatch (source=0x7f8392beba11, source@entry=0x446bdd0, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:4026
 g_main_dispatch (context=0x1fa9000) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:2715
 g_main_context_dispatch (context=context@entry=0x1fa9000) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3219

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.