compiz crashed with SIGSEGV in std::__detail::_List_node_base::_M_hook()

[Kaloyan Grancharov]

It happened when i started Firefox after it's last update. I decided to report this as a new bug, because I saw that fixes had been released for the other two similar bugs and now the bug is back despite of this.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity 4.20.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic-pae 3.0.4
Uname: Linux 3.0.0-12-generic-pae i686
ApportVersion: 1.23-0ubuntu2
Architecture: i386
CrashCounter: 1
Date: Fri Sep 30 21:02:30 2011
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110922)
ProcCmdline: compiz
ProcEnviron:
 LANG=bg_BG.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xb6f73806 <_ZNSt8__detail15_List_node_base7_M_hookEPS0_+22>: mov %edx,(%ecx)
 PC (0xb6f73806) ok
 source "%edx" ok
 destination "(%ecx)" (0x00000000) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 std::__detail::_List_node_base::_M_hook(std::__detail::_List_node_base*) () from /usr/lib/i386-linux-gnu/libstdc++.so.6
 LauncherIcon::SetRelatedWindows(int) () from /usr/lib/compiz/libunityshell.so
 BamfLauncherIcon::UpdateDesktopFile() () from /usr/lib/compiz/libunityshell.so
 g_free () from /lib/i386-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
Title: compiz crashed with SIGSEGV in std::__detail::_List_node_base::_M_hook()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 std::__detail::_List_node_base::_M_hook (this=0xa864788, __position=0xb02d2480) at ../../../../src/libstdc++-v3/src/list.cc:129
 emplace<sigc::slot_base> (__position=<optimized out>, this=<optimized out>) at /usr/include/c++/4.6/bits/list.tcc:92
 insert (__x=..., __position=<optimized out>, this=<optimized out>) at /usr/include/c++/4.6/bits/stl_list.h:1062
 temp_slot_list (slots=<optimized out>, this=0xbfb585d8) at /usr/include/sigc++-2.0/sigc++/signal_base.h:183
 emit (_A_a1=@0xbfb585e8, impl=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:1004

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Tim Penhey (thumper)]

I'm pretty sure that I fixed this problem some time ago, it was a nux issue. I've linked the branch.