** Changed in: unity
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/944217

Title:
  compiz crashed with SIGSEGV in
  std::__detail::_List_node_base::_M_hook() from
  unity::ui::PointerBarrierWrapper::EmitCurrentData

Status in Unity:
  Fix Released
Status in Unity Distro Priority:
  Fix Committed
Status in “unity” package in Ubuntu:
  Fix Committed

Bug description:
  Compiz crashed hard after I unplugged an external monitor.

  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
  Date: Thu Mar  1 18:23:44 2012
  EcryptfsInUse: Yes
  ExecutablePath: /usr/bin/compiz
  ProcCmdline: compiz
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7f36ff1aa433 
<_ZNSt8__detail15_List_node_base7_M_hookEPS0_+19>:      mov    %rdi,(%rax)
   PC (0x7f36ff1aa433) ok
   source "%rdi" ok
   destination "(%rax)" (0x00000440) not located in a known VMA region (needed 
writable region)!
  SegvReason: writing NULL VMA
  Signal: 11
  SourcePackage: unity
  StacktraceTop:
   std::__detail::_List_node_base::_M_hook(std::__detail::_List_node_base*) () 
from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
   unity::ui::PointerBarrierWrapper::EmitCurrentData() () from 
/usr/lib/compiz/libunityshell.so
   ?? () from /usr/lib/compiz/libunityshell.so
   ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
  Title: compiz crashed with SIGSEGV in 
std::__detail::_List_node_base::_M_hook()
  UpgradeStatus: Upgraded to precise on 2012-02-22 (8 days ago)
  UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare staff

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