gnome-control-center crashed with SIGSEGV in g_type_check_instance_cast()

[Aneesh Neelam]

Crashed when I was trying to setup multimonitor on XMir and then on Xorg

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: gnome-control-center-unity 1.3daily13.06.14.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-8.15-generic 3.11.1
Uname: Linux 3.11.0-8-generic x86_64
ApportVersion: 2.12.4-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Sat Sep 28 01:14:44 2013
ExecutablePath: /usr/bin/gnome-control-center
ExecutableTimestamp: 1380103247
InstallationDate: Installed on 2013-01-22 (248 days ago)
InstallationMedia: This
MarkForUpload: True
ProcCmdline: gnome-control-center background
ProcCwd: /home/aneesh
SegvAnalysis:
 Segfault happened at: 0x7f54ca9cc137 <g_type_check_instance_cast+71>: movzbl 0x16(%r9),%eax
 PC (0x7f54ca9cc137) ok
 source "0x16(%r9)" (0x2e66666666c3f89e) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: gnome-control-center-unity
StacktraceTop:
 g_type_check_instance_cast () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/control-center-1/panels/libunity-appearance.so
 g_simple_async_result_complete () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: gnome-control-center crashed with SIGSEGV in g_type_check_instance_cast()
UpgradeStatus: Upgraded to saucy on 2013-07-04 (85 days ago)
UserGroups: adm autopilot cdrom dialout dip lpadmin plugdev sambashare sudo vboxusers

[Apport retracing service (apport)]

StacktraceTop:
 g_type_check_instance_cast (type_instance=0x239b550, iface_type=62537184) at /build/buildd/glib2.0-2.38.0/./gobject/gtype.c:4009
 ?? () from /tmp/apport_sandbox_WXcbgK/usr/lib/control-center-1/panels/libunity-appearance.so
 g_simple_async_result_complete (simple=0x7f54bc012ee0) at /build/buildd/glib2.0-2.38.0/./gio/gsimpleasyncresult.c:777
 complete_in_idle_cb_for_thread (_data=0x3e677e0) at /build/buildd/glib2.0-2.38.0/./gio/gsimpleasyncresult.c:845
 g_main_dispatch (context=0x206e470) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3065

[Launchpad Janitor (janitor)]

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