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*** This bug is a duplicate of bug 936462 ***
    https://bugs.launchpad.net/bugs/936462

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #936462, so is being marked as such.  Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

** Attachment removed: "CoreDump.gz"
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** Attachment removed: "Disassembly.txt"
   https://bugs.launchpad.net/bugs/1337693/+attachment/4145257/+files/Disassembly.txt

** Attachment removed: "ProcMaps.txt"
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** Attachment removed: "ProcStatus.txt"
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** Attachment removed: "Stacktrace.txt"
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** Attachment removed: "ThreadStacktrace.txt"
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** This bug has been marked a duplicate of private bug 936462

** Information type changed from Private to Public

** Tags removed: need-amd64-retrace

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https://bugs.launchpad.net/bugs/1337693

Title:
  compiz crashed with SIGSEGV in
  sigc::internal::trackable_callback_list::remove_callback()

Status in “unity” package in Ubuntu:
  New

Bug description:
  temporary froze my system after closing Chrome dev and then compiz
  crashed

  ProblemType: Crash
  DistroRelease: Ubuntu 14.10
  Package: unity 7.3.0+14.10.20140619-0ubuntu1
  ProcVersionSignature: Ubuntu 3.15.0-6.11-generic 3.15.0
  Uname: Linux 3.15.0-6-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.4-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Jul  4 07:15:16 2014
  ExecutablePath: /usr/bin/compiz
  InstallationDate: Installed on 2014-05-14 (51 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  ProcCmdline: compiz
  SegvAnalysis:
   Segfault happened at: 0x7ff21b9b5798 <_ZN4sigc8internal23trackable_callback_list15remove_callbackEPv+24>:	cmp    %rsi,0x10(%rbx)
   PC (0x7ff21b9b5798) ok
   source "%rsi" ok
   destination "0x10(%rbx)" (0x000000b7) not located in a known VMA region (needed writable region)!
  SegvReason: writing NULL VMA
  Signal: 11
  SourcePackage: unity
  StacktraceTop:
   sigc::internal::trackable_callback_list::remove_callback(void*) () from /usr/lib/x86_64-linux-gnu/libsigc-2.0.so.0
   sigc::internal::typed_slot_rep<sigc::bound_mem_functor0<void, unity::decoration::Item> >::destroy(void*) () from /usr/lib/compiz/libunityshell.so
   sigc::slot_base::~slot_base() () from /usr/lib/x86_64-linux-gnu/libsigc-2.0.so.0
   std::_List_base<sigc::slot_base, std::allocator<sigc::slot_base> >::_M_clear() () from /usr/lib/x86_64-linux-gnu/libsigc-2.0.so.0
   sigc::signal_base::~signal_base() () from /usr/lib/x86_64-linux-gnu/libsigc-2.0.so.0
  Title: compiz crashed with SIGSEGV in sigc::internal::trackable_callback_list::remove_callback()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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