Version:            (using KDE 4.0.80)
Installed from:    Ubuntu Packages
OS:                Linux

I was worked with OpenOffice.org Calc 2, with three windows of it; I have open Firefox 3.0, Konsole (that was running «top»), Dolphin and Adept Manager (that was downloading new packages for install later) and others applications in the tray (such as Amarok/KDE3, Kmix/KDE4, Kopete/KDE4, KWallet/KDE4 and Thunderbird docked with Kdocker).
The history is that I paste a text from Firefox to one of the spreadsheet windows, so, the OOo Calc not responding more. After a few minutes (not seconds, minutes), I decided to kill the windows with the «Ctrl+Alt+Esc» shortcut. Kwin start to use the 90% of the CPU (more or less). The led of the HDD is on fire, and one minute then, Kwin crash with signal SIGSEGV.

Now, i can continue working normally...


I think that maybe, this bug can be a duplicate of the Bug 161753, but I don't know how to follow when I detect (or thing that is this case), that the bug that I report was previously reported.


Finally, this is my backtrace:

Application: KWin (kwin), signal SIGSEGV
[Thread debugging using libthread_db enabled]
[New Thread 0x7f75123e57e0 (LWP 19260)]
[New Thread 0x42643950 (LWP 27875)]
[KCrash handler]
#5  0x00007f75196bc6d4 in QProcess::setProcessState ()
   from /usr/lib/libQtCore.so.4
#6  0x00007f75196bc6ff in ?? () from /usr/lib/libQtCore.so.4
#7  0x00007f75196c13cc in ?? () from /usr/lib/libQtCore.so.4
#8  0x00007f75196fe746 in ?? () from /usr/lib/libQtCore.so.4
#9  0x00007f75196bcd1c in QProcess::waitForFinished ()
   from /usr/lib/libQtCore.so.4
#10 0x00007f75196bce20 in QProcess::~QProcess () from /usr/lib/libQtCore.so.4
#11 0x00007f751a60e3f7 in KWin::Client::gotPing (this=0xcfd5f0, 
    timestamp=<value optimized out>)
    at /build/buildd/kdebase-workspace-4.0.80/kwin/client.cpp:1117
#12 0x00007f751a628ce6 in KWin::RootInfo::gotPing (this=0x911e70, w=83886087, 
    timestamp=72838241)
    at /build/buildd/kdebase-workspace-4.0.80/kwin/events.cpp:204
#13 0x00007f75171d11bf in NETRootInfo::event (this=0xeb3df0, 
    event=0x7fff22ab6b20, properties=0x7fff22ab63b0, properties_size=5)
    at /build/buildd/kde4libs-4.0.80/kdeui/windowmanagement/netwm.cpp:1950
#14 0x00007f751a62857e in KWin::Workspace::workspaceEvent (this=0x6cc440, 
    e=0x7fff22ab6b20)
    at /build/buildd/kdebase-workspace-4.0.80/kwin/events.cpp:233
#15 0x00007f751a61afe9 in KWin::Application::x11EventFilter (
    this=0x7fff22ab6f00, e=0x7fff22ab6b20)
    at /build/buildd/kdebase-workspace-4.0.80/kwin/main.cpp:359
#16 0x00007f751835837f in ?? () from /usr/lib/libQtGui.so.4
#17 0x00007f7518365b89 in QApplication::x11ProcessEvent ()
   from /usr/lib/libQtGui.so.4
#18 0x00007f751838c8f3 in ?? () from /usr/lib/libQtGui.so.4
#19 0x00007f7515c1c262 in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#20 0x00007f7515c1f516 in ?? () from /usr/lib/libglib-2.0.so.0
#21 0x00007f7515c1f9af in g_main_context_iteration ()
   from /usr/lib/libglib-2.0.so.0
#22 0x00007f75197453af in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#23 0x00007f751838c72f in ?? () from /usr/lib/libQtGui.so.4
#24 0x00007f751971b585 in QEventLoop::processEvents ()
   from /usr/lib/libQtCore.so.4
#25 0x00007f751971b6db in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#26 0x00007f751971d729 in QCoreApplication::exec ()
   from /usr/lib/libQtCore.so.4
#27 0x00007f751a61c17d in kdemain (argc=3, argv=0x7fff22ab73b8)
    at /build/buildd/kdebase-workspace-4.0.80/kwin/main.cpp:510
#28 0x00007f751a2991c4 in __libc_start_main () from /lib/libc.so.6
#29 0x0000000000400649 in _start ()
#0  0x00007f751a318b81 in nanosleep () from /lib/libc.so.6



Greetings!