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[Donarsson <benjamin-schwarz@xxxxxx>]

Just had the same issue with two Steam windows. Just as it says in the
original report, one window was minimized and one was visible. When I
clicked on the icon, my desktop froze for a few seconds and Compiz
crashed.

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https://bugs.launchpad.net/bugs/1212399

Title:
  compiz crashed with SIGSEGV in CompAction::initiate()

Status in Unity:
  Triaged
Status in “unity” package in Ubuntu:
  Triaged

Bug description:
  I clicked the icon for my browser in the bar on the left side to un-
  minimize one of the two browser windows (the other one was already
  visible). Nothing seemed to happen, and then Compiz died and was
  restarted.

  ProblemType: Crash
  DistroRelease: Ubuntu 13.10
  Package: unity 7.1.0+13.10.20130813.1-0ubuntu1
  ProcVersionSignature: Ubuntu 3.11.0-2.5-generic 3.11.0-rc5
  Uname: Linux 3.11.0-2-generic x86_64
  ApportVersion: 2.12-0ubuntu3
  Architecture: amd64
  Date: Wed Aug 14 21:11:37 2013
  ExecutablePath: /usr/bin/compiz
  InstallationDate: Installed on 2013-06-02 (73 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MarkForUpload: True
  ProcCmdline: compiz
  ProcEnviron:
   LANGUAGE=nl
   PATH=(custom, user)
   XDG_RUNTIME_DIR=<set>
   LANG=nl_NL.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7feaf27ba16d <_ZN10CompAction8initiateEv+13>:	mov    0x8(%rdi),%rdx
   PC (0x7feaf27ba16d) ok
   source "0x8(%rdi)" (0x7f0000000009) not located in a known VMA region (needed readable region)!
   destination "%rdx" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: unity
  StacktraceTop:
   CompAction::initiate() () from /usr/lib/libcompiz_core.so.ABI-20130125
   unity::MultiActionList::Initiate(std::string const&, std::vector<CompOption, std::allocator<CompOption> > const&, int) const () from /usr/lib/compiz/libunityshell.so
   unity::MultiActionList::InitiateAll(std::vector<CompOption, std::allocator<CompOption> > const&, int) const () from /usr/lib/compiz/libunityshell.so
   unity::PluginAdapter::InitiateScale(std::string const&, int) () from /usr/lib/compiz/libunityshell.so
   unity::PluginAdapter::ScaleWindowGroup(std::vector<unsigned long, std::allocator<unsigned long> > const&, int, bool) () from /usr/lib/compiz/libunityshell.so
  Title: compiz crashed with SIGSEGV in CompAction::initiate()
  UpgradeStatus: Upgraded to saucy on 2013-06-05 (70 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo video wireshark

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