Application: KWin (kwin), signal SIGSEGV
[?1034h[Thread debugging using libthread_db enabled]
[New Thread 0xb68b58e0 (LWP 2859)]
[KCrash handler]
#5  0xb5022128 in KWin::CoverSwitchEffect::paintScene (this=0x815f900, 
    frontWindow=0x0, leftWindows=0xbfa3a010, rightWindows=0xbfa3a00c, 
    reflectedWindows=false)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/effects/coverswitch.cpp:397
#6  0xb5022d8e in KWin::CoverSwitchEffect::paintScreen (this=0x815f900, 
    mask=32, region=
        {d = 0xbfa3a068, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/effects/coverswitch.cpp:183
#7  0xb7f0c4db in KWin::EffectsHandlerImpl::paintScreen (this=0x81631e0, 
    mask=32, region=
        {d = 0xbfa3a0f8, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/effects.cpp:113
#8  0xb50033d9 in KWin::BoxSwitchEffect::paintScreen (this=0x815f980, mask=32, 
    region=
        {d = 0xbfa3a138, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/effects/boxswitch.cpp:93
#9  0xb7f0c4db in KWin::EffectsHandlerImpl::paintScreen (this=0x81631e0, 
    mask=32, region=
        {d = 0xbfa3a178, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/effects.cpp:113
#10 0xb7c8cac6 in KWin::Effect::paintScreen (this=0x81584e8, mask=32, region=
        {d = 0xbfa3a1b8, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/lib/kwineffects.cpp:178
#11 0xb7f0c4db in KWin::EffectsHandlerImpl::paintScreen (this=0x81631e0, 
    mask=32, region=
        {d = 0xbfa3a278, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/effects.cpp:113
#12 0xb500914c in KWin::DesktopGridEffect::paintScreen (this=0x816fe38, 
    mask=32, region=
        {d = 0xbfa3a2b8, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/effects/desktopgrid.cpp:132
#13 0xb7f0c4db in KWin::EffectsHandlerImpl::paintScreen (this=0x81631e0, 
    mask=32, region=
        {d = 0xbfa3a2f8, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/effects.cpp:113
#14 0xb7c8cac6 in KWin::Effect::paintScreen (this=0x81901a0, mask=32, region=
        {d = 0xbfa3a338, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/lib/kwineffects.cpp:178
#15 0xb7f0c4db in KWin::EffectsHandlerImpl::paintScreen (this=0x81631e0, 
    mask=32, region=
        {d = 0xbfa3a378, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/effects.cpp:113
#16 0xb7c8cac6 in KWin::Effect::paintScreen (this=0x816b308, mask=32, region=
        {d = 0xbfa3a3b8, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/lib/kwineffects.cpp:178
#17 0xb7f0c4db in KWin::EffectsHandlerImpl::paintScreen (this=0x81631e0, 
    mask=32, region=
        {d = 0xbfa3a40c, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/effects.cpp:113
#18 0xb501ddf6 in KWin::ZoomEffect::paintScreen (this=0x819bb20, mask=32, 
    region=
        {d = 0xbfa3a458, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/effects/zoom.cpp:72
#19 0xb7f0c4db in KWin::EffectsHandlerImpl::paintScreen (this=0x81631e0, 
    mask=32, region=
        {d = 0xbfa3a498, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/effects.cpp:113
#20 0xb7c8cac6 in KWin::Effect::paintScreen (this=0x8143788, mask=32, region=
        {d = 0xbfa3a4d8, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/lib/kwineffects.cpp:178
#21 0xb7f0c4db in KWin::EffectsHandlerImpl::paintScreen (this=0x81631e0, 
    mask=32, region=
        {d = 0xbfa3a570, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, data=@0xbfa3a528)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/effects.cpp:113
#22 0xb7efb987 in KWin::Scene::paintScreen (this=0x81315c8, mask=0xbfa3a61c, 
    region=0xbfa3a734)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/scene.cpp:131
#23 0xb7effbcb in KWin::SceneXrender::paint (this=0x81315c8, damage=
        {d = 0xbfa3a734, static shared_empty = {ref = {_q_value = 276}, rgn = 0x0, xrectangles = 0x0, qt_rgn = 0x0}}, toplevels=
        {{p = {static shared_null = {ref = {_q_value = 4287}, alloc = 0, begin = 0, end = 0, sharable = 1, array = {0x0}}, d = 0xbfa3a730}, d = 0xbfa3a730}})
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/scene_xrender.cpp:160
#24 0xb7ef5b4e in KWin::Workspace::performCompositing (this=0x80ff938)
    at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/composite.cpp:326
#25 0xb7e97ed5 in KWin::Workspace::qt_metacall (this=0x80ff938, 
    _c=QMetaObject::InvokeMetaMethod, _id=136, _a=0xbfa3a828)
    at /home/dirk/src/kde/4.1/kdebase/bgcc/workspace/kwin/workspace.moc:430
#26 0xb79ebd4a in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#27 0xb79ec2c2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#28 0xb7a214c7 in QTimer::timeout () from /usr/lib/libQtCore.so.4
#29 0xb79f340e in QTimer::timerEvent () from /usr/lib/libQtCore.so.4
#30 0xb79e865f in QObject::event () from /usr/lib/libQtCore.so.4
#31 0xb7121e0c in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#32 0xb7128dde in QApplication::notify () from /usr/lib/libQtGui.so.4
#33 0xb6e712b1 in KApplication::notify (this=0xbfa3b0e4, receiver=0x80ffb84, 
    event=0xbfa3acec)
    at /home/dirk/src/kde/4.1/kdelibs/kdeui/kernel/kapplication.cpp:311
#34 0xb7eb1c0a in KWin::Application::notify (this=0xbfa3b0e4, o=0x80ffb84, 
    e=0xbfa3acec) at /home/dirk/src/kde/4.1/kdebase/workspace/kwin/main.cpp:368
#35 0xb79da501 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#36 0xb7a02951 in ?? () from /usr/lib/libQtCore.so.4
#37 0xbfa3b0e4 in ?? ()
#38 0x080ffb84 in ?? ()
#39 0xbfa3acec in ?? ()
#40 0xb7a75ff4 in ?? () from /usr/lib/libQtCore.so.4
#41 0x08058778 in ?? ()
#42 0xbfa3ad00 in ?? ()
#43 0xbfa3acc8 in ?? ()
#44 0x080ffb84 in ?? ()
#45 0x00000001 in ?? ()
#46 0xbfa3acb8 in ?? ()
#47 0x0000dd88 in ?? ()
#48 0x00000001 in ?? ()
#49 0x00000000 in ?? ()
#0  0xffffe430 in __kernel_vsyscall ()