Application: kwin (4.6.00 (4.6.0))
KDE Platform Version: 4.6.00 (4.6.0)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-25-generic x86_64
Distribution: Ubuntu 10.10

-- Information about the crash:
- What I was doing when the application crashed:
I am messing around with Ctrl + F8, Ctrl + F9, Ctrl + F10 .... try to rotate blah blah...and then it crashs

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fb7d0569780 (LWP 1919))]

Thread 3 (Thread 0x7fb7c6e88700 (LWP 1971)):
#0  0x00007fb7e0c382c3 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fb7dd22676e in qt_safe_select (nfds=16, fdread=0x1047540, fdwrite=0x10477d8, fdexcept=0x1047a70, orig_timeout=0x0) at kernel/qcore_unix.cpp:82
#2  0x00007fb7dd22bbeb in QEventDispatcherUNIXPrivate::doSelect (this=0x1047380, flags=<value optimized out>, timeout=<value optimized out>) at kernel/qeventdispatcher_unix.cpp:219
#3  0x00007fb7dd22c81b in QEventDispatcherUNIX::processEvents (this=0x108ff80, flags=) at kernel/qeventdispatcher_unix.cpp:919
#4  0x00007fb7dd1fba02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007fb7dd1fbdec in QEventLoop::exec (this=0x7fb7c6e87d90, flags=) at kernel/qeventloop.cpp:201
#6  0x00007fb7dd1062fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007fb7dd1db5f8 in QInotifyFileSystemWatcherEngine::run (this=0xf5f970) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fb7dd10927e in QThreadPrivate::start (arg=0xf5f970) at thread/qthread_unix.cpp:266
#9  0x00007fb7d78fa971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#10 0x00007fb7e0c3f92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fb7c6687700 (LWP 1972)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fb7dfa5b334 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fb7dfd66160) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fb7dfa5b369 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7fb7dfd74234) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fb7d78fa971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#4  0x00007fb7e0c3f92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb7d0569780 (LWP 1919)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007fb7e0f2c781 in KWin::ClientGroup::remove (this=0x11103b0, c=0x1205000, newGeom=<value optimized out>, toNullGroup=false) at ../../kwin/clientgroup.cpp:164
#8  0x00007fb7e0f2cc7e in KWin::ClientGroup::updateStates (this=0x11103b0, main=0x16bc0a0, only=0x0) at ../../kwin/clientgroup.cpp:309
#9  0x00007fb7e0f8901d in KWin::Client::setGeometry (this=0x16bc0a0, x=<value optimized out>, y=<value optimized out>, w=644, h=27, force=27599435, emitJs=true) at ../../kwin/geometry.cpp:2046
#10 0x00007fb7e0f89dee in KWin::Client::setGeometry (this=0x11103b0, r=..., force=19, emitJs=<value optimized out>) at ../../kwin/client.h:945
#11 0x00007fb7e0f8a524 in KWin::Client::blockGeometryUpdates (this=0x16bc0a0, block=<value optimized out>) at ../../kwin/geometry.cpp:2197
#12 0x00007fb7e0f8ac7f in ~GeometryUpdatesBlocker (this=0x16bc0a0, vertical=64, horizontal=<value optimized out>, adjust=false) at ../../kwin/client.h:714
#13 KWin::Client::changeMaximize (this=0x16bc0a0, vertical=64, horizontal=<value optimized out>, adjust=false) at ../../kwin/geometry.cpp:2446
#14 0x00007fb7e0f8b605 in KWin::Client::setMaximize (this=0x16bc0a0, vertically=false, horizontally=true) at ../../kwin/geometry.cpp:2230
#15 0x00007fb7e0f81f08 in KWin::Workspace::performWindowOperation (this=0xde1150, c=0x16bc0a0, op=<value optimized out>) at ../../kwin/useractions.cpp:803
#16 0x00007fb7df26c327 in KDecoration::maximize (this=0x1205e90, button=<value optimized out>) at ../../../kwin/lib/kdecoration.cpp:260
#17 0x00007fb7df271048 in KCommonDecoration::maximize (this=<value optimized out>, button=<value optimized out>) at ../../../kwin/lib/kcommondecoration.cpp:1216
#18 0x00007fb7df27106b in KCommonDecoration::slotMaximize (this=0x11103b0) at ../../../kwin/lib/kcommondecoration.cpp:684
#19 0x00007fb7df273328 in KCommonDecoration::qt_metacall (this=0xd16a70, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff641a5c30) at ./kcommondecoration.moc:114
#20 0x00007fb7c9216b25 in Oxygen::Client::qt_metacall (this=0x11103b0, _c=13563168, _id=5, _a=0x4) at ./oxygenclient.moc:79
#21 0x00007fb7dd214b27 in QMetaObject::activate (sender=0xd15820, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x4) at kernel/qobject.cpp:3280
#22 0x00007fb7dcc41402 in QAbstractButton::clicked (this=0x11103b0, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:206
#23 0x00007fb7dc93beeb in QAbstractButtonPrivate::emitClicked (this=0xce2190) at widgets/qabstractbutton.cpp:546
#24 0x00007fb7dc93d5bb in QAbstractButtonPrivate::click (this=0xce2190) at widgets/qabstractbutton.cpp:539
#25 0x00007fb7dc93d82c in QAbstractButton::mouseReleaseEvent (this=0xd15820, e=0x7fff641a5cd0) at widgets/qabstractbutton.cpp:1121
#26 0x00007fb7df27195a in KCommonDecorationButton::mouseReleaseEvent (this=0xd15820, e=<value optimized out>) at ../../../kwin/lib/kcommondecoration.cpp:1028
#27 0x00007fb7c920b25a in Oxygen::Button::mouseReleaseEvent (this=0xd15820, e=0x7fff641a6620) at ../../../../kwin/clients/oxygen/oxygenbutton.cpp:166
#28 0x00007fb7dc5ba04e in QWidget::event (this=0xd15820, event=0x7fff641a6620) at kernel/qwidget.cpp:8187
#29 0x00007fb7dc563fdc in QApplicationPrivate::notify_helper (this=0xc9ffd0, receiver=0xd15820, e=0x7fff641a6620) at kernel/qapplication.cpp:4396
#30 0x00007fb7dc56a30e in QApplication::notify (this=0x7fff641a71d0, receiver=0xd15820, e=0x7fff641a6620) at kernel/qapplication.cpp:3959
#31 0x00007fb7e0724a36 in KApplication::notify (this=0x7fff641a71d0, receiver=0xd15820, event=0x7fff641a6620) at ../../kdeui/kernel/kapplication.cpp:311
#32 0x00007fb7dd1fccdc in QCoreApplication::notifyInternal (this=0x7fff641a71d0, receiver=0xd15820, event=0x7fff641a6620) at kernel/qcoreapplication.cpp:732
#33 0x00007fb7dc568dbe in sendEvent (receiver=0xd15820, event=0x7fff641a6620, alienWidget=0x0, nativeWidget=0xd15820, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#34 QApplicationPrivate::sendMouseEvent (receiver=0xd15820, event=0x7fff641a6620, alienWidget=0x0, nativeWidget=0xd15820, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:3058
#35 0x00007fb7dc5ec345 in QETWidget::translateMouseEvent (this=0xd15820, event=<value optimized out>) at kernel/qapplication_x11.cpp:4403
#36 0x00007fb7dc5eac5c in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff641a6f50) at kernel/qapplication_x11.cpp:3536
#37 0x00007fb7dc617b6f in QEventDispatcherX11::processEvents (this=<value optimized out>, flags=) at kernel/qeventdispatcher_x11.cpp:132
#38 0x00007fb7dd1fba02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#39 0x00007fb7dd1fbdec in QEventLoop::exec (this=0x7fff641a70d0, flags=) at kernel/qeventloop.cpp:201
#40 0x00007fb7dd1ffebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#41 0x00007fb7e0f39643 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../kwin/main.cpp:542
#42 0x00007fb7e0b77d8e in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff641a7858) at libc-start.c:226
#43 0x0000000000400669 in _start ()

Reported using DrKonqi