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

[Pilot6]

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: unity-control-center 14.04.3-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-8.28-generic 3.13.2
Uname: Linux 3.13.0-8-generic x86_64
ApportVersion: 2.13.2-0ubuntu4
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Feb 18 18:21:43 2014
ExecutablePath: /usr/bin/unity-control-center
InstallationDate: Installed on 2013-12-08 (72 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131206)
ProcCmdline: unity-control-center
ProcEnviron:
 PATH=(custom, no user)
 LANGUAGE=ru
 XDG_RUNTIME_DIR=<set>
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fc2f30cc414 <__GI___pthread_mutex_lock+4>: mov 0x10(%rdi),%esi
 PC (0x7fc2f30cc414) ok
 source "0x10(%rdi)" (0x000020d8) not located in a known VMA region (needed readable region)!
 destination "%esi" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity-control-center
StacktraceTop:
 __GI___pthread_mutex_lock (mutex=0x0) at ../nptl/pthread_mutex_lock.c:66
 ?? () from /usr/lib/x86_64-linux-gnu/dri/vboxvideo_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/vboxvideo_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/vboxvideo_dri.so
 start_thread (arg=0x7fc2c19a5700) at pthread_create.c:312
Title: unity-control-center crashed with SIGSEGV in __GI___pthread_mutex_lock()
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
 gnome-control-center 1:3.6.3-0ubuntu50

[Apport retracing service (apport)]

StacktraceTop:
 __GI___pthread_mutex_lock (mutex=0x0) at ../nptl/pthread_mutex_lock.c:66
 crLockMutex (mutex=<optimized out>) at /build/buildd/virtualbox-4.3.6-dfsg/src/VBox/GuestHost/OpenGL/util/threads.c:166
 crHashtableLock (h=<optimized out>) at /build/buildd/virtualbox-4.3.6-dfsg/src/VBox/GuestHost/OpenGL/util/hash.c:434
 stubSyncThreadProc (ThreadSelf=0x1eb4a00, pvUser=<optimized out>) at /build/buildd/virtualbox-4.3.6-dfsg/src/VBox/Additions/common/crOpenGL/load.c:898
 rtThreadMain (pThread=0x1eb4a00, NativeThread=<optimized out>, pszThreadName=<optimized out>) at /build/buildd/virtualbox-4.3.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:712

[Launchpad Janitor (janitor)]

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

[Shwan (shwan-ciyako)]

After an update the system font is huge and I can't change that cause system-setting is crashing.

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1281590