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[ashjas <1293242@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1295909 ***
    https://bugs.launchpad.net/bugs/1295909

#7 behaviour is exactly that i have been facing since last two versions of ubuntu.
I had hoped that LTS would be stable and would fix this very very annoying bug.
But no this didnt happen.
Happened for Ubuntu 14.04.1
and now with Ubuntu 14.10 aswell. NO change at all.

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https://bugs.launchpad.net/bugs/1293242

Title:
  compiz crashed with SIGSEGV in ScaleScreen::getWindows()

Status in Unity:
  Confirmed
Status in unity package in Ubuntu:
  Confirmed

Bug description:
  Unity se cerró luego de utilizar la utilidad ''Unity Tweak Tool''
  especificamente al activar la opción ''Despliegue de ventanas''

  Sistema actualizado, he debido reiniciar el equipo.

  ProblemType: Crash
  DistroRelease: Ubuntu 14.04
  Package: unity 7.1.2+14.04.20140313-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
  Uname: Linux 3.13.0-17-generic i686
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: i386
  CurrentDesktop: Unity
  Date: Sun Mar 16 17:58:29 2014
  ExecutablePath: /usr/bin/compiz
  InstallationDate: Installed on 2014-02-27 (17 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha i386 (20140224)
  ProcCmdline: compiz
  SegvAnalysis:
   Segfault happened at: 0xb177dc54 <_ZNK11ScaleScreen10getWindowsEv+4>:	mov    0x24(%eax),%eax
   PC (0xb177dc54) ok
   source "0x24(%eax)" (0x00000024) not located in a known VMA region (needed readable region)!
   destination "%eax" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: unity
  StacktraceTop:
   ScaleScreen::getWindows() const () from /usr/lib/compiz/libscale.so
   unity::UnityScreen::OnInitiateSpread() () from /usr/lib/compiz/libunityshell.so
   sigc::internal::slot_call0<sigc::bound_mem_functor0<void, unity::UnityScreen>, void>::call_it(sigc::internal::slot_rep*) () from /usr/lib/compiz/libunityshell.so
   sigc::internal::signal_emit0<void, sigc::nil>::emit(sigc::internal::signal_impl*) () from /usr/lib/compiz/libunityshell.so
   unity::PluginAdapter::OnScreenGrabbed() () from /usr/lib/compiz/libunityshell.so
  Title: compiz crashed with SIGSEGV in ScaleScreen::getWindows()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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