compiz crashed with SIGSEGV in LauncherIcon::GetCenter()

[bjaka_max]

unity freeze on show left bar, move down eclipse icon and crash after close eclipse

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: libnux-0.9-0 0.9.42-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
CrashCounter: 1
Date: Thu Apr 14 18:00:52 2011
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110330)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=ru_RU:en
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x1118579 <_ZN12LauncherIcon9GetCenterEv+9>: mov 0x120(%edx),%ecx
 PC (0x01118579) ok
 source "0x120(%edx)" (0x00000120) not located in a known VMA region (needed readable region)!
 destination "%ecx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: nux
StacktraceTop:
 LauncherIcon::GetCenter() () from /usr/lib/compiz/libunityshell.so
 Launcher::EndIconDrag() () from /usr/lib/compiz/libunityshell.so
 Launcher::RecvMouseUp(int, int, unsigned long, unsigned long) () from /usr/lib/compiz/libunityshell.so
 sigc::internal::slot_call4<sigc::bound_mem_functor4<void, Launcher, int, int, unsigned long, unsigned long>, void, int, int, unsigned long, unsigned long>::call_it(sigc::internal::slot_rep*, int const&, int const&, unsigned long const&, unsigned long const&) () from /usr/lib/compiz/libunityshell.so
 nux::InputArea::OnEvent(nux::Event&, long, long) () from /usr/lib/libnux-0.9.so.0
Title: compiz crashed with SIGSEGV in LauncherIcon::GetCenter()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 Point3D (this=0x0) at /usr/include/Nux-0.9/NuxCore/Math/Point3D.h:62
 LauncherIcon::GetCenter (this=0x0) at /build/buildd/unity-3.8.6/src/LauncherIcon.cpp:539
 Launcher::EndIconDrag (this=0x90f6e60) at /build/buildd/unity-3.8.6/src/Launcher.cpp:2913
 Launcher::RecvMouseUp (this=0x90f6e60, x=47, y=501, button_flags=4096, key_flags=0) at /build/buildd/unity-3.8.6/src/Launcher.cpp:2975
 operator() (rep=0x90f7940, a_1=@0xbfacc544, a_2=@0xbfacc540, a_3=@0xbfacc53c, a_4=@0xbfacc538) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:2055

[Omer Akram (om26er)]

both the duplicate and this bug suggest that the crash happened when interacting with the launcher.

[Robert Carr (robertcarr)]

Fixed in lp:unity 1546.