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[Christopher Townsend <christopher.townsend@xxxxxxxxxxxxx>]

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https://bugs.launchpad.net/bugs/1221673

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

Status in Unity:
  In Progress
Status in Unity 7.2 series:
  In Progress
Status in “unity” package in Ubuntu:
  Fix Released
Status in “unity” source package in Trusty:
  Fix Committed

Bug description:
  [Impact]
  at boot

  ProblemType: CrashDistroRelease: Ubuntu 13.10
  Package: unity 7.1.0+13.10.20130903.1-0ubuntu1
  ProcVersionSignature: Ubuntu 3.11.0-4.9-generic 3.11.0-rc7
  Uname: Linux 3.11.0-4-generic x86_64
  ApportVersion: 2.12.1-0ubuntu3
  Architecture: amd64
  CrashCounter: 1
  Date: Fri Sep  6 10:38:05 2013
  ExecutablePath: /usr/bin/compiz
  InstallationDate: Installed on 2013-09-04 (1 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130904)
  MarkForUpload: True
  ProcCmdline: compiz
  ProcEnviron:
   LANGUAGE=pt:pt_BR:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=pt_PT.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7fe02b8d169d <_ZN10CompAction8initiateEv+13>:	mov    0x8(%rdi),%rdx
   PC (0x7fe02b8d169d) ok
   source "0x8(%rdi)" (0x00000008) not located in a known VMA region (needed readable region)!
   destination "%rdx" ok
  SegvReason: reading NULL VMA
  Signal: 11SourcePackage: unity
  StacktraceTop:
   CompAction::initiate() () from /usr/lib/libcompiz_core.so.ABI-20130415
   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::InitiateExpo() () from /usr/lib/compiz/libunityshell.so
   unity::launcher::LauncherIcon::Activate(unity::launcher::ActionArg) () from /usr/lib/compiz/libunityshell.so
  Title: compiz crashed with SIGSEGV in CompAction::initiate()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

  [Test Case]
  Unclear: this is an intermittent crash problem.

  [Regression Potential]
  The worst case is that session would continue to crash on startup.

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