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[Bug 982196] Re: compiz crashed with SIGSEGV in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string() from operator() from operator!=<nux::Property, std::basic_string<char>, std::basic_string<char>, std::basic_string<char> > from operator()

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Marco Trevisan (Treviño) <mail@xxxxxxxxx>
Date: Wed, 23 Jul 2014 16:23:36 -0000
Reply-to: Bug 982196 <982196@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: unity
    Milestone: 7.0.1 => 7.3.1

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https://bugs.launchpad.net/bugs/982196

Title:
  compiz crashed with SIGSEGV in std::basic_string<char,
  std::char_traits<char>, std::allocator<char> >::basic_string() from
  operator() from  operator!=<nux::Property, std::basic_string<char>,
  std::basic_string<char>, std::basic_string<char> > from operator()

Status in Unity:
  Incomplete
Status in Unity 5.0 series:
  Confirmed
Status in “unity” package in Ubuntu:
  Confirmed

Bug description:
  I was trying to figure out why the scale feature didn't show all
  windows when pressing super+w. I was on an empty workspace, summoned
  scale for all windows (super+w) and saw the window fading but no
  window previews appeared. I open CCSM an clicked around to check if
  the button bindings were set correct, and all of a sudden the system
  froze and compiz restartet.

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: unity 5.10.0-0ubuntu3
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
  Uname: Linux 3.2.0-23-generic-pae i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu3
  Architecture: i386
  Date: Sun Apr 15 11:45:58 2012
  ExecutablePath: /usr/bin/compiz
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120413)
  ProcCmdline: compiz
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0xb7696375 <_ZNSsC2ERKSs+21>:	mov    -0x4(%eax),%edx
   PC (0xb7696375) ok
   source "-0x4(%eax)" (0xfffffffc) not located in a known VMA region (needed readable region)!
   destination "%edx" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: unity
  StacktraceTop:
   std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::string const&) () from /usr/lib/i386-linux-gnu/libstdc++.so.6
   ?? () from /usr/lib/compiz/libunityshell.so
   unity::UBusManager::OnCallback(_GVariant*, void*) () from /usr/lib/compiz/libunityshell.so
   ?? () from /usr/lib/compiz/libunityshell.so
   ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
  Title: compiz crashed with SIGSEGV in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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