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[Christopher Townsend <christopher.townsend@xxxxxxxxxxxxx>]

This is a rather old bug and I've not seen any crashes like this
reported in some time.  It seems this has been fixed some releases ago
and I'm marking as such.

If this does still occur, we can either reopen this bug or open a new
one.

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https://bugs.launchpad.net/bugs/942601

Title:
  compiz crashed with SIGSEGV in unity::MT::GrabHandle::reposition()
  from operator() from unity::MT::GrabHandleGroup::forEachHandle() from
  UnityMTGrabHandlesWindow::restackHandles

Status in Unity:
  Fix Released
Status in unity package in Ubuntu:
  Fix Released

Bug description:
  Unity crash after enable wobby window in ccsm

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: unity 5.4.0-0ubuntu2
  ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
  Uname: Linux 3.2.0-17-generic x86_64
  ApportVersion: 1.93-0ubuntu2
  Architecture: amd64
  CrashCounter: 1
  Date: Tue Feb 28 21:17:22 2012
  ExecutablePath: /usr/bin/compiz
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120201.1)
  ProcCmdline: compiz
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7f465afeb524 <_ZN5unity2MT10GrabHandle10repositionEiij+36>:	mov    0x48(%rdi),%rdi
   PC (0x7f465afeb524) ok
   source "0x48(%rdi)" (0x6666655f6e6570b7) not located in a known VMA region (needed readable region)!
   destination "%rdi" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: unity
  StacktraceTop:
   unity::MT::GrabHandle::reposition(int, int, unsigned int) () from /usr/lib/compiz/libunitymtgrabhandles.so
   unity::MT::GrabHandleGroup::forEachHandle(std::function<void (boost::shared_ptr<unity::MT::GrabHandle> const&)> const&) () from /usr/lib/compiz/libunitymtgrabhandles.so
   UnityMTGrabHandlesWindow::restackHandles() () from /usr/lib/compiz/libunitymtgrabhandles.so
   UnityMTGrabHandlesScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libunitymtgrabhandles.so
   CompScreen::handleEvent(_XEvent*) () from /usr/lib/libcompiz_core.so.ABI-20120216
  Title: compiz crashed with SIGSEGV in unity::MT::GrabHandle::reposition()
  UpgradeStatus: Upgraded to precise on 2012-02-25 (3 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers

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