Application: kwin (4.5.1 (KDE 4.5.1))
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.32-25-generic x86_64
Distribution: Ubuntu 10.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed: Exactle that: it crashed while I was grouping emesene and skype windows.
It was also working quite strange because I grouped a window already gruoped, an then it appeared  in both groups (something I had never saw)

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f35c74677a0 (LWP 1587))]

Thread 2 (Thread 0x7f35a2d32710 (LWP 1594)):
#0  0x00007f35c6ce2fe3 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f35c350387e in qt_safe_select (nfds=22, fdread=0x1ee1540, fdwrite=0x1ee17d8, fdexcept=0x1ee1a70, orig_timeout=0x0) at kernel/qcore_unix.cpp:82
#2  0x00007f35c3508bdb in QEventDispatcherUNIXPrivate::doSelect (this=0x1ee1380, flags=<value optimized out>, timeout=<value optimized out>) at kernel/qeventdispatcher_unix.cpp:219
#3  0x00007f35c350980b in QEventDispatcherUNIX::processEvents (this=0x1db3330, flags=) at kernel/qeventdispatcher_unix.cpp:919
#4  0x00007f35c34d8dd2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f35c34d91bc in QEventLoop::exec (this=0x7f35a2d31cb0, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f35c33e436d in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007f35c34b8b48 in QInotifyFileSystemWatcherEngine::run (this=0x1ee0430) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f35c33e72ee in QThreadPrivate::start (arg=0x1ee0430) at thread/qthread_unix.cpp:266
#9  0x00007f35c4a14953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f35c31559ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#11 0x00007f35c6cea6fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f35c74677a0 (LWP 1587)):
[KCrash Handler]
#6  0x00007f35c221345a in __dynamic_cast () from /usr/lib/libstdc++.so.6
#7  0x00007f35c7041048 in KWin::Toplevel::windowType (this=0x7f35c6f832d8, direct=false, supported_types=<value optimized out>) at ../../kwin/toplevel.cpp:154
#8  0x00007f35c6fc6e7d in KWin::Toplevel::isDesktop (this=0x7f35c6f832d8) at ../../kwin/toplevel.h:279
#9  KWin::Client::isSpecialWindow (this=0x7f35c6f832d8) at ../../kwin/client.cpp:2076
#10 0x00007f35c6fc7d85 in KWin::Client::isCloseable (this=0x35cb9b0) at ../../kwin/client.cpp:1280
#11 0x00007f35c6fcf97d in KWin::Client::closeWindow (this=0x7f35c6f832d8) at ../../kwin/client.cpp:1288
#12 0x00007f35c700acef in KWin::Bridge::closeClientGroupItem (this=<value optimized out>, index=0) at ../../kwin/bridge.cpp:278
#13 0x00007f35ae8e71c9 in Oxygen::Client::closeItem (this=0x552e2c0, button=0x29d4220) at ../../../../kwin/clients/oxygen/oxygenclient.cpp:1747
#14 0x00007f35ae8e0b92 in Oxygen::Client::eventFilter (this=0x552e2c0, object=0x29d4220, event=0x7fff4890e950) at ../../../../kwin/clients/oxygen/oxygenclient.cpp:1284
#15 0x00007f35c34d98d7 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x29d4220, event=0x7fff4890e950) at kernel/qcoreapplication.cpp:847
#16 0x00007f35c26286bc in QApplicationPrivate::notify_helper (this=0x1477ee0, receiver=0x29d4220, e=0x7fff4890e950) at kernel/qapplication.cpp:4392
#17 0x00007f35c262e9fe in QApplication::notify (this=0x7fff4890f4c0, receiver=0x29d4220, e=0x7fff4890e950) at kernel/qapplication.cpp:3959
#18 0x00007f35c67e6536 in KApplication::notify (this=0x7fff4890f4c0, receiver=0x29d4220, event=0x7fff4890e950) at ../../kdeui/kernel/kapplication.cpp:310
#19 0x00007f35c34da0ac in QCoreApplication::notifyInternal (this=0x7fff4890f4c0, receiver=0x29d4220, event=0x7fff4890e950) at kernel/qcoreapplication.cpp:732
#20 0x00007f35c262d4ae in QCoreApplication::sendEvent (receiver=0x29d4220, event=0x7fff4890e950, alienWidget=0x0, nativeWidget=0x29d4220, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QApplicationPrivate::sendMouseEvent (receiver=0x29d4220, event=0x7fff4890e950, alienWidget=0x0, nativeWidget=0x29d4220, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, 
    spontaneous=true) at kernel/qapplication.cpp:3058
#22 0x00007f35c26b04a5 in QETWidget::translateMouseEvent (this=0x29d4220, event=<value optimized out>) at kernel/qapplication_x11.cpp:4403
#23 0x00007f35c26aeddc in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff4890f280) at kernel/qapplication_x11.cpp:3536
#24 0x00007f35c26dba7f in QEventDispatcherX11::processEvents (this=<value optimized out>, flags=) at kernel/qeventdispatcher_x11.cpp:132
#25 0x00007f35c34d8dd2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#26 0x00007f35c34d91bc in QEventLoop::exec (this=0x7fff4890f400, flags=) at kernel/qeventloop.cpp:201
#27 0x00007f35c34dd26b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#28 0x00007f35c6fdc67d in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../kwin/main.cpp:531
#29 0x00007f35c6c22c4d 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=0x7fff4890fac8) at libc-start.c:226
#30 0x00000000004006b9 in _start ()

This bug may be a duplicate of or related to bug 233756, bug 249057.

Possible duplicates by query: bug 233756.

Reported using DrKonqi