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

** Also affects: unity
   Importance: Undecided
       Status: New

** Changed in: unity
       Status: New => Triaged

** Changed in: unity (Ubuntu)
       Status: New => Triaged

** Changed in: unity
   Importance: Undecided => Medium

** Information type changed from Private to Public

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https://bugs.launchpad.net/bugs/1223995

Title:
  compiz crashed with SIGSEGV in
  unity::launcher::LauncherModel::ReorderAfter()

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

Bug description:
  Dragged desktop icon to the top of the launcher: freezed

  ProblemType: Crash
  DistroRelease: Ubuntu 13.10
  Package: unity 7.1.0+13.10.20130903.1-0ubuntu1
  ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0
  Uname: Linux 3.11.0-7-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.12.1-0ubuntu3
  Architecture: i386
  Date: Wed Sep 11 18:37:56 2013
  ExecutablePath: /usr/bin/compiz
  InstallationDate: Installed on 2013-09-11 (0 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha i386 (20130911)
  MarkForUpload: True
  ProcCmdline: compiz
  SegvAnalysis:
   Segfault happened at: 0xb1282ac2 <_ZN5unity8launcher13LauncherModel12ReorderAfterERKN3nux9ObjectPtrINS0_20AbstractLauncherIconEEES7_+338>:	mov    (%eax),%edx
   PC (0xb1282ac2) ok
   source "(%eax)" (0x000001f5) not located in a known VMA region (needed readable region)!
   destination "%edx" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: unity
  StacktraceTop:
   unity::launcher::LauncherModel::ReorderAfter(nux::ObjectPtr<unity::launcher::AbstractLauncherIcon> const&, nux::ObjectPtr<unity::launcher::AbstractLauncherIcon> const&) () from /usr/lib/compiz/libunityshell.so
   ?? () from /usr/lib/compiz/libunityshell.so
   unity::launcher::LauncherDragWindow::CancelDrag() () from /usr/lib/compiz/libunityshell.so
   sigc::internal::slot_call1<sigc::hide_functor<-1, sigc::bound_mem_functor0<void, unity::launcher::LauncherDragWindow> >, void, unsigned long>::call_it(sigc::internal::slot_rep*, unsigned long const&) () from /usr/lib/compiz/libunityshell.so
   sigc::internal::signal_emit1<void, unsigned long, sigc::nil>::emit(sigc::internal::signal_impl*, unsigned long const&) () from /usr/lib/compiz/libunityshell.so
  Title: compiz crashed with SIGSEGV in unity::launcher::LauncherModel::ReorderAfter()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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