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[Tualatrix Chou <tualatrix@xxxxxxxxx>]

Public bug reported:

Binary package hint: compiz

I was just disabling the "Snapping Windows" in CCSM, Compiz crashed.

After restart use "compiz --replace", I found the "Snapping Windows" was
disabled. If I try to enable it again, it will crash too.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: unity 3.6.6-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-7.35-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
Architecture: amd64
CrashCounter: 1
Date: Fri Mar 18 12:17:31 2011
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110302)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=zh_CN.UTF-8
 LC_MESSAGES=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fa7c16c02f6 <_ZNK4sigc11signal_base4implEv+22>:	mov    0x8(%rdi),%rbx
 PC (0x7fa7c16c02f6) ok
 source "0x8(%rdi)" (0x000000e8) not located in a known VMA region (needed readable region)!
 destination "%rbx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 sigc::signal_base::impl() const () from /usr/lib/libsigc-2.0.so.0
 sigc::signal_base::connect(sigc::slot_base const&) () from /usr/lib/libsigc-2.0.so.0
 UnityScreen::UnityScreen(CompScreen*) () from /usr/lib/compiz/libunityshell.so
 CompPlugin::VTableForScreenAndWindow<UnityScreen, UnityWindow>::initScreen(CompScreen*) () from /usr/lib/compiz/libunityshell.so
 CompManager::initPlugin(CompPlugin*) ()
Title: compiz crashed with SIGSEGV in sigc::signal_base::impl()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors: (<unknown>:1594): libindicator-WARNING **: Shortcut Group does not have key 'TargetEnvironment' falling back to deprecated use of 'OnlyShowIn' and 'NotShowIn'.

** Affects: unity (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/737330

Title:
  compiz crashed with SIGSEGV in sigc::signal_base::impl()