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["Stephen M. Webb" <stephen.webb@xxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1228965 ***
    https://bugs.launchpad.net/bugs/1228965

** This bug has been marked a duplicate of bug 1228965
   compiz crashed with SIGSEGV in unity::ui::EdgeBarrierController::Impl::SetupBarriers()

** Information type changed from Private to Public

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https://bugs.launchpad.net/bugs/1229668

Title:
  compiz crashed with SIGSEGV in main_arena()

Status in “unity” package in Ubuntu:
  New

Bug description:
  I seems to have crashed when coming back from a lock screen (i.e., the
  screen was locked, and it crashed right after unlock).

  Please let me know if/how I can help any further.

  # lsb_release -rd
  Description:	Ubuntu Saucy Salamander (development branch)
  Release:	13.10

  ProblemType: Crash
  DistroRelease: Ubuntu 13.10
  Package: unity 7.1.0+13.10.20130920-0ubuntu1
  ProcVersionSignature: Ubuntu 3.11.0-8.15-generic 3.11.1
  Uname: Linux 3.11.0-8-generic x86_64
  ApportVersion: 2.12.4-0ubuntu1
  Architecture: amd64
  CrashCounter: 1
  Date: Tue Sep 24 12:59:26 2013
  ExecutablePath: /usr/bin/compiz
  InstallationDate: Installed on 2013-07-23 (62 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MarkForUpload: True
  ProcCmdline: compiz
  SegvAnalysis:
   Segfault happened at: 0x7f21947f3bc8 <main_arena+1160>:	and    %bl,0x2(%rbp,%rdx,4)
   PC (0x7f21947f3bc8) in non-executable VMA region: 0x7f21947f3000-0x7f21947f5000 rw-p /lib/x86_64-linux-gnu/libc-2.17.so
   source "%bl" ok
   destination "0x2(%rbp,%rdx,4)" (0x01ff3292) ok
  SegvReason: executing writable VMA /lib/x86_64-linux-gnu/libc-2.17.so
  Signal: 11
  SourcePackage: unity
  StacktraceTop:
   main_arena () from /lib/x86_64-linux-gnu/libc.so.6
   unity::ui::EdgeBarrierController::Impl::SetupBarriers(std::vector<nux::Rect, std::allocator<nux::Rect> > const&) () from /usr/lib/compiz/libunityshell.so
   ?? () from /usr/lib/compiz/libunityshell.so
   unity::glib::Source::SourceCallback(void*) () from /usr/lib/libunity-core-6.0.so.7
   g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
  Title: compiz crashed with SIGSEGV in main_arena()
  UpgradeStatus: Upgraded to saucy on 2013-07-27 (58 days ago)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo

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