unity-2d-shell crashed with SIGSEGV

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ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity-2d-shell 5.14.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-42.65~precise1-generic 3.5.7.21
Uname: Linux 3.5.0-42-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
Date: Mon Oct 28 12:28:55 2013
ExecutablePath: /usr/bin/unity-2d-shell
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
MarkForUpload: True
ProcCmdline: unity-2d-shell
ProcEnviron:
 LANGUAGE=es_CL:es
 PATH=(custom, no user)
 LANG=es_CL.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f87970eb042: testb $0x4,(%rbx)
 PC (0x7f87970eb042) ok
 source "$0x4" ok
 destination "(%rbx)" (0x00000051) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libQtDeclarative.so.4
 ?? () from /usr/lib/x86_64-linux-gnu/libQtDeclarative.so.4
 ?? () from /usr/lib/x86_64-linux-gnu/libQtDeclarative.so.4
 ?? () from /usr/lib/x86_64-linux-gnu/libQtDeclarative.so.4
 ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
Title: unity-2d-shell crashed with SIGSEGV
UpgradeStatus: Upgraded to precise on 2013-06-06 (143 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
XsessionErrors:
 (update-notifier:2240): libgdu-WARNING **: Couldn't call GetAll() to get properties for /org/freedesktop/UDisks/devices/sdb1: Method "GetAll" with signature "s" on interface "org.freedesktop.DBus.Properties" doesn't exist
 (gdu-notification-daemon:2063): libgdu-WARNING **: Couldn't call GetAll() to get properties for /org/freedesktop/UDisks/devices/sdb1: Method "GetAll" with signature "s" on interface "org.freedesktop.DBus.Properties" doesn't exist
 gnome-session[1741]: WARNING: Application 'unity-2d-shell.desktop' killed by signal