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[Monsta <1376530@xxxxxxxxxxxxxxxxxx>]

I see GTK+3 in Utopic received the patch, but you need to patch GTK+2 as
well:

https://git.gnome.org/browse/gtk+/commit/?h=gtk-2-24&id=fbf38d16bcc26630f0f721d266509f5bc292f606

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https://bugs.launchpad.net/bugs/1376530

Title:
  GTK apps crashing with "Attempt to unlock mutex that was not locked"

Status in “gtk+2.0” package in Ubuntu:
  Fix Committed
Status in “gtk+2.0” package in Debian:
  New

Bug description:
  Attempting to run some GTK apps (e.g. pyrenamer) on 14.10 results in
  an immediate crash, with the message "Attempt to unlock mutex that was
  not locked".

  https://bugzilla.gnome.org/show_bug.cgi?id=735428 seems to be the
  relevant upstream bug, and there is a patch here:
  https://github.com/GNOME/gtk/commit/79c3ff3c4ed74bbcc820dac2d5180fa4d48d55ec

  To some extent, this seems to be the result of individual projects
  using GTK incorrectly, and some fixes have been made to those
  individual projects.

  *However*, I am also seeing this bug occur in a closed source third
  party application, Stata 13. As Emmanuele Bassi mentions in the Gnome
  bug thread, there are probably a lot of applications out in the wild
  affected by the same issue, that in some cases cannot be fixed, so it
  would be good if a fix could be included in the versions of GTK that
  Ubuntu ships.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: libgtk-3-0 3.12.2-0ubuntu9
  ProcVersionSignature: Ubuntu 3.16.0-18.25-generic 3.16.3
  Uname: Linux 3.16.0-18-generic x86_64
  ApportVersion: 2.14.7-0ubuntu2
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Thu Oct  2 10:05:20 2014
  InstallationDate: Installed on 2014-04-24 (160 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  SourcePackage: gtk+3.0
  UpgradeStatus: Upgraded to utopic on 2014-10-01 (0 days ago)

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