compiz crashed with SIGSEGV in ObjectPtr()

[Szymon Wojtowicz]

During change configuration on ccsm (CompizConfig)

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity 5.10.0-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.0.1-0ubuntu3
Architecture: amd64
Date: Mon Apr 16 11:18:18 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110911)
ProcCmdline: compiz
ProcEnviron:
 PATH=(custom, no user)
 LANG=pl_PL.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f893909e81e <_ZN5unity8launcher8Launcher8DndResetEv+78>: mov 0x78(%rax),%rdi
 PC (0x7f893909e81e) ok
 source "0x78(%rax)" (0x6c8948e8245c89c0) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 unity::launcher::Launcher::DndReset() () from /usr/lib/compiz/libunityshell.so
 unity::launcher::Launcher::OnUpdateDragManagerTimeout(void*) () from /usr/lib/compiz/libunityshell.so
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: compiz crashed with SIGSEGV in unity::launcher::Launcher::DndReset()
UpgradeStatus: Upgraded to precise on 2012-03-11 (35 days ago)
UserGroups: sudo

[Apport retracing service (apport)]

StacktraceTop:
 ObjectPtr (other=<optimized out>, this=0x7fff4e47d170) at /usr/include/Nux-2.0/NuxCore/ObjectPtr.h:55
 unity::launcher::Launcher::DndReset (this=0x1ed1380) at /build/buildd/unity-5.10.0/plugins/unityshell/src/Launcher.cpp:2713
 unity::launcher::Launcher::OnUpdateDragManagerTimeout (data=0x1ed1380) at /build/buildd/unity-5.10.0/plugins/unityshell/src/Launcher.cpp:1509
 g_timeout_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/glib2.0-2.32.0/./glib/gmain.c:3859
 g_main_dispatch (context=0xf82000) at /build/buildd/glib2.0-2.32.0/./glib/gmain.c:2515