Version:           4.2.65 (using Devel)
OS:                Linux
Installed from:    Compiled sources

When I open some Windows (for example konqueror, dolphin and kdiamond, no depending on aplications) and then use the present Windows effect, kwin crashes.

After kwin is restarted all effects works until I open some new applications.

Anwendung: KWin (kwin), Signal SIGSEGV
[?1034h[Thread debugging using libthread_db enabled]

Thread 1 (Thread 0xb4cb76d0 (LWP 13287)):
[KCrash Handler]
#6  0x088d9646 in ?? ()
#7  0xb32b112d in KWin::PresentWindowsEffect::rearrangeWindows (this=0x8900af8) at /usr/src/debug/kdebase-workspace-4.2.65.svn932664/kwin/effects/presentwindows/presentwindows.cpp:500
#8  0xb32b1a4b in KWin::PresentWindowsEffect::setActive (this=0x8900af8, active=true, closingTab=false)
    at /usr/src/debug/kdebase-workspace-4.2.65.svn932664/kwin/effects/presentwindows/presentwindows.cpp:1205
#9  0xb32b2415 in KWin::PresentWindowsEffect::qt_metacall (this=0x8900af8, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbfd927bc)
    at /usr/src/debug/kdebase-workspace-4.2.65.svn932664/kwin/effects/presentwindows/presentwindows.h:96
#10 0xb6e4dc68 in QMetaObject::activate (sender=0x89471e0, from_signal_index=5, to_signal_index=6, argv=0xbfd927bc) at kernel/qobject.cpp:3069
#11 0xb6e4e0a0 in QMetaObject::activate (sender=0x89471e0, m=0xb79271c8, from_local_signal_index=1, to_local_signal_index=2, argv=0xbfd927bc) at kernel/qobject.cpp:3163
#12 0xb70b57d1 in QAction::triggered (this=0x89471e0, _t1=false) at .moc/release-shared/moc_qaction.cpp:236
#13 0xb70b6d4f in QAction::activate (this=0x89471e0, event=QAction::Trigger) at kernel/qaction.cpp:1160
#14 0xb7dee318 in KGlobalAccelPrivate::_k_invokeAction (this=0x8193e10, actionId=@0x88c1af0, timestamp=<value optimized out>) at /usr/include/QtGui/qaction.h:203
#15 0xb7df048f in KGlobalAccel::qt_metacall (this=0x8195998, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfd92964) at /usr/src/debug/kdelibs-4.2.65.svn932664/build/kdeui/kglobalaccel.moc:70
#16 0xb6e4dc68 in QMetaObject::activate (sender=0x8193e24, from_signal_index=5, to_signal_index=5, argv=0xbfd92964) at kernel/qobject.cpp:3069
#17 0xb6e4f3f2 in QMetaObject::activate (sender=0x8193e24, m=0xb7f4e664, local_signal_index=0, argv=0xbfd92964) at kernel/qobject.cpp:3143
#18 0xb7f04865 in OrgKdeKGlobalAccelInterface::invokeAction (this=0x8193e24, _t1=@0x88c1af0, _t2=22194770) at /usr/src/debug/kdelibs-4.2.65.svn932664/build/kdeui/kglobalaccel_interface.moc:152
#19 0xb7f05888 in OrgKdeKGlobalAccelInterface::qt_metacall (this=0x8193e24, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfd92d1c)
    at /usr/src/debug/kdelibs-4.2.65.svn932664/build/kdeui/kglobalaccel_interface.moc:109
#20 0xb6f4dcdb in QDBusConnectionPrivate::deliverCall (this=0x80d6628, object=0x8193e24, msg=@0x893393c, metaTypes=@0x8933940, slotIdx=5) at qdbusintegrator.cpp:891
#21 0xb6f56bb7 in QDBusCallDeliveryEvent::placeMetaCall (this=0x8933910, object=0x8193e24) at qdbusintegrator_p.h:101
#22 0xb6e48348 in QObject::event (this=0x8193e24, e=0x8933910) at kernel/qobject.cpp:1118
#23 0xb70bbdac in QApplicationPrivate::notify_helper (this=0x80551a0, receiver=0x8193e24, e=0x8933910) at kernel/qapplication.cpp:4084
#24 0xb70c40ae in QApplication::notify (this=0xbfd934b8, receiver=0x8193e24, e=0x8933910) at kernel/qapplication.cpp:3631
#25 0xb7da265d in KApplication::notify (this=0xbfd934b8, receiver=0x8193e24, event=0x8933910) at /usr/src/debug/kdelibs-4.2.65.svn932664/kdeui/kernel/kapplication.cpp:307
#26 0xb7fc7c1d in KWin::Application::notify (this=0xbfd934b8, o=0x8193e24, e=0x8933910) at /usr/src/debug/kdebase-workspace-4.2.65.svn932664/kwin/main.cpp:368
#27 0xb6e3790b in QCoreApplication::notifyInternal (this=0xbfd934b8, receiver=0x8193e24, event=0x8933910) at kernel/qcoreapplication.cpp:602
#28 0xb6e38555 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x804c698) at kernel/qcoreapplication.h:213
#29 0xb6e3874d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1132
#30 0xb6e6383f in postEventSourceDispatch (s=0x8057520) at kernel/qcoreapplication.h:218
#31 0xb63872d9 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#32 0xb638a85b in ?? () from /usr/lib/libglib-2.0.so.0
#33 0xb638a9d8 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#34 0xb6e63488 in QEventDispatcherGlib::processEvents (this=0x8055160, flags={i = -1076284584}) at kernel/qeventdispatcher_glib.cpp:323
#35 0xb715bba5 in QGuiEventDispatcherGlib::processEvents (this=0x8055160, flags={i = -1076284536}) at kernel/qguieventdispatcher_glib.cpp:202
#36 0xb6e35f4a in QEventLoop::processEvents (this=0xbfd93400, flags={i = -1076284472}) at kernel/qeventloop.cpp:149
#37 0xb6e3638a in QEventLoop::exec (this=0xbfd93400, flags={i = -1076284408}) at kernel/qeventloop.cpp:200
#38 0xb6e38819 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880
#39 0xb70bbc27 in QApplication::exec () at kernel/qapplication.cpp:3553
#40 0xb7fcbabf in kdemain (argc=3, argv=0xbfd93694) at /usr/src/debug/kdebase-workspace-4.2.65.svn932664/kwin/main.cpp:538
#41 0x08048762 in main (argc=0, argv=0x8906e70) at /usr/src/debug/kdebase-workspace-4.2.65.svn932664/build/kwin/kwin_dummy.cpp:3