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[Launchpad Bug Tracker <1182742@xxxxxxxxxxxxxxxxxx>]

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I don't know the cause of this crash, but after restarting compiz by
hand it crashed again several times before I was finally able to get my
session back on its feet.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: unity 7.0.0daily13.04.18~13.04-0ubuntu1
ProcVersionSignature: Ubuntu 3.9.0-2.6-generic 3.9.2
Uname: Linux 3.9.0-2-generic x86_64
ApportVersion: 2.10.1-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Tue May 21 21:52:41 2013
ExecutablePath: /usr/bin/compiz
InstallationDate: Installed on 2010-09-24 (970 days ago)
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
MarkForUpload: True
ProcCmdline: compiz --sm-client-id 1094a19fdf1aaee48f136505634181450900000038250047
SegvAnalysis:
 Segfault happened at: 0x7f85171b7b54 <_ZNKSt8_Rb_treeImSt4pairIKmP10CompWindowESt10_Select1stIS4_ESt4lessImESaIS4_EE4findERS1_+36>:	cmp    %rcx,0x20(%rdx)
 PC (0x7f85171b7b54) ok
 source "%rcx" ok
 destination "0x20(%rdx)" (0x8000000000000020) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 std::_Rb_tree<unsigned long, std::pair<unsigned long const, CompWindow*>, std::_Select1st<std::pair<unsigned long const, CompWindow*> >, std::less<unsigned long>, std::allocator<std::pair<unsigned long const, CompWindow*> > >::find(unsigned long const&) const () from /usr/lib/libcompiz_core.so.ABI-20130125
 compiz::private_screen::WindowManager::findWindow(unsigned long) const () from /usr/lib/libcompiz_core.so.ABI-20130125
 PrivateCompositeScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libcomposite.so
 CompScreen::handleEvent(_XEvent*) () from /usr/lib/libcompiz_core.so.ABI-20130125
 PrivateGLScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libopengl.so
Title: compiz crashed with SIGSEGV in std::_Rb_tree<unsigned long, std::pair<unsigned long const, CompWindow*>, std::_Select1st<std::pair<unsigned long const, CompWindow*> >, std::less<unsigned long>, std::allocator<std::pair<unsigned long const, CompWindow*> > >::find()
UpgradeStatus: Upgraded to saucy on 2013-05-06 (15 days ago)
UserGroups: adm admin cdrom dialout libvirtd lpadmin mythtv plugdev sambashare src sudo

** Affects: compiz (Ubuntu)
     Importance: Critical
         Status: Confirmed


** Tags: amd64 apport-crash apport-failed-retrace saucy third-party-packages
-- 
compiz crashed with SIGSEGV in std::_Rb_tree<unsigned long, std::pair<unsigned long const, CompWindow*>, std::_Select1st<std::pair<unsigned long const, CompWindow*> >, std::less<unsigned long>, std::allocator<std::pair<unsigned long const, CompWindow*> > >::find()
https://bugs.launchpad.net/bugs/1182742
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