unity-control-center crashed with SIGSEGV in cc_appearance_xml_load_xml_internal()

[Trevor Wermund]

control center crashed after checking 'allow over 100%' then going to use the volume keys on my keybaord to make the volume as loud as possible, it seemed to crash rigth after hitting it 100%

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: unity-control-center 14.04.3+14.04.20140310-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
Uname: Linux 3.13.0-17-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Mar 12 19:11:27 2014
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/unity-control-center
InstallationDate: Installed on 2014-03-13 (0 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140312)
ProcCmdline: unity-control-center appearance
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f858c10fd32: mov (%rax),%rdi
 PC (0x7f858c10fd32) ok
 source "(%rax)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity-control-center
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/unity-control-center-1/panels/libappearance.so
 ?? () from /usr/lib/x86_64-linux-gnu/unity-control-center-1/panels/libappearance.so
 ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
 ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
 g_cclosure_marshal_generic_va () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: unity-control-center crashed with SIGSEGV in ffi_call_unix64()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
usr_lib_unity-control-center:
 activity-log-manager 0.9.7-0ubuntu10
 deja-dup 29.5-0ubuntu2

[Apport retracing service (apport)]

StacktraceTop:
 cc_appearance_xml_load_xml_internal (xml=xml@entry=0x2eb3d20, filename=filename@entry=0x2e12e30 "/usr/share/gnome-background-properties/trusty-wallpapers.xml", in_thread=in_thread@entry=0) at cc-appearance-xml.c:303
 gnome_wp_file_changed (monitor=<optimized out>, file=<optimized out>, other_file=<optimized out>, event_type=<optimized out>, data=0x2eb3d20) at cc-appearance-xml.c:337
 ffi_call_unix64 () at ../src/x86/unix64.S:76
 ffi_call (cif=cif@entry=0x7fff5d60fcf0, fn=0x7f858c110180 <gnome_wp_file_changed>, rvalue=0x7fff5d60fc20, avalue=avalue@entry=0x7fff5d60fba0) at ../src/x86/ffi64.c:522
 g_cclosure_marshal_generic_va (closure=0x7f857801be80, return_value=0x0, instance=0x2fa5360, args_list=<optimized out>, marshal_data=0x0, n_params=3, param_types=0x1556520) at /build/buildd/glib2.0-2.39.91/./gobject/gclosure.c:1541

[Launchpad Janitor (janitor)]

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