Version:            (using KDE KDE 3.5.3)
Installed from:    Debian testing/unstable Packages
OS:                Linux

Kwin crashes when I'm trying to open new application. But not always, sometimes it crashes, sometimes not. When I'm tried to open GKT-Based apps, it crashes more often.

Also backtrace is not always available.

Below is the backtrace.

[KCrash handler]
#6  0xb7efce85 in KWinInternal::Workspace::nextFocusChainClient ()
   from /usr/lib/libkdeinit_kwin.so
#7  0xb7f090db in KWinInternal::TabBox::createClientList ()
   from /usr/lib/libkdeinit_kwin.so
#8  0xb7f0f7b8 in KWinInternal::TabBox::reset ()
   from /usr/lib/libkdeinit_kwin.so
#9  0xb7f10020 in KWinInternal::Workspace::startKDEWalkThroughWindows ()
   from /usr/lib/libkdeinit_kwin.so
#10 0xb7f30e67 in KWinInternal::Workspace::slotWalkThroughWindows ()
   from /usr/lib/libkdeinit_kwin.so
#11 0xb7f469f8 in KWinInternal::Workspace::qt_invoke ()
   from /usr/lib/libkdeinit_kwin.so
#12 0xb78506dc in KGlobalAccelPrivate::activate ()
   from /usr/lib/libkdecore.so.4
#13 0xb78aeadf in KGlobalAccelPrivate::x11KeyPress ()
   from /usr/lib/libkdecore.so.4
#14 0xb78aed1c in KGlobalAccelPrivate::x11Event ()
   from /usr/lib/libkdecore.so.4
#15 0xb78d571f in KApplication::x11EventFilter ()
   from /usr/lib/libkdecore.so.4
#16 0xb7f44c26 in KWinInternal::Application::x11EventFilter ()
   from /usr/lib/libkdeinit_kwin.so
#17 0xb70ae423 in qt_set_x11_event_filter () from /usr/lib/libqt-mt.so.3
#18 0xb70bb68f in QApplication::x11ProcessEvent () from /usr/lib/libqt-mt.so.3
#19 0xb70d52a2 in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#20 0xb7149255 in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#21 0xb714917a in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#22 0xb712f38d in QApplication::exec () from /usr/lib/libqt-mt.so.3
#23 0xb7f417ef in kdemain () from /usr/lib/libkdeinit_kwin.so
#24 0xb7c8feb0 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#25 0x080483d1 in ?? ()