gnome-tweak-tool crashed with SIGSEGV in sem_post@@GLIBC_2.1()

[discont]

Crashed after start

$ gnome-tweak-tool

(gnome-tweak-tool:1150): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:1605:38: '' is not a valid color name
WARNING : Shell not installed or running
WARNING : Error detecting shell
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/gtweak/tweaks/tweak_shell_extensions.py", line 199, in __init__
    raise Exception("Shell not running or DBus service not available")
Exception: Shell not running or DBus service not available
INFO : GSettings missing key org.gnome.nautilus.desktop (key computer-icon-visible)
WARNING : Shell not running
None
INFO : GSetting missing org.gnome.mutter
Segmentation fault (core dumped)

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: gnome-tweak-tool 3.8.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-8.15-generic 3.11.1
Uname: Linux 3.11.0-8-generic i686
ApportVersion: 2.12.4-0ubuntu1
Architecture: i386
Date: Sat Sep 21 23:25:52 2013
ExecutablePath: /usr/bin/gnome-tweak-tool
InstallationDate: Installed on 2012-05-31 (477 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423.2)
InterpreterPath: /usr/bin/python2.7
MarkForUpload: True
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/gnome-tweak-tool
SegvAnalysis:
 Segfault happened at: 0xb7754e15 <sem_post@@GLIBC_2.1+5>: mov (%ebx),%eax
 PC (0xb7754e15) ok
 source "(%ebx)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-tweak-tool
StacktraceTop:
 sem_post@@GLIBC_2.1 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/sem_post.S:41
 PyThread_release_lock ()
 PyEval_ReleaseLock ()
 ?? () from /usr/lib/python2.7/dist-packages/gi/_gobject/_gobject.so
 ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
Title: gnome-tweak-tool crashed with SIGSEGV in sem_post@@GLIBC_2.1()
UpgradeStatus: Upgraded to saucy on 2013-07-25 (58 days ago)
UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo vboxusers

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1228626, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.

[Launchpad Janitor (janitor)]

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