compiz crashed with SIGSEGV in sigc::internal::signal_emit0<void, sigc::nil>::emit()

[Viliam Miklosovic]

Was just working with firefox and thundebird (each put in a separate desktop) and compiz crashed while switching between those two desktops.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: libnux-0.9-0 0.9.36-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic i686
Architecture: i386
Date: Mon Mar 28 23:38:19 2011
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x4ef4e40 <_ZN4sigc8internal12signal_emit0IvNS_3nilEE4emitEPNS0_11signal_implE+144>: mov 0x8(%esi),%eax
 PC (0x04ef4e40) ok
 source "0x8(%esi)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: nux
StacktraceTop:
 sigc::internal::signal_emit0<void, sigc::nil>::emit(sigc::internal::signal_impl*) () from /usr/lib/compiz/libunityshell.so
 Launcher::EventLogic() () from /usr/lib/compiz/libunityshell.so
 Launcher::DrawContent(nux::GraphicsEngine&, bool) () from /usr/lib/compiz/libunityshell.so
 nux::View::ProcessDraw(nux::GraphicsEngine&, bool) () from /usr/lib/libnux-0.9.so.0
 nux::Layout::ProcessDraw(nux::GraphicsEngine&, bool) () from /usr/lib/libnux-0.9.so.0
Title: compiz crashed with SIGSEGV in sigc::internal::signal_emit0<void, sigc::nil>::emit()
UpgradeStatus: Upgraded to natty on 2011-03-27 (1 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Omer Akram (om26er)]

Thanks for the bug report. This particular bug has already been reported and is a duplicate of bug 729715, so is being marked as such. Any further discussion regarding the bug should occur in the other report. Feel free to report any other bugs you may find.