Application that crashed: kde4-window-decorator
Version of the application: 0.0.1
KDE Version: 4.2.98 (KDE 4.2.98 (KDE 4.3 RC3)) "release 150"
Qt Version: 4.5.2
Operating System: Linux 2.6.27.25-0.1-default x86_64
Distribution: "openSUSE 11.1 (x86_64)"

What I was doing when the application crashed:
Started up PC. Set to Autologon. Crash report pops up and there is no window decorator after login is completed.

Problem even happened when logging in using xrdp remotely.

 -- Backtrace:
Application: KDE Window Decorator (kde4-window-decorator), signal: Segmentation fault
[KCrash Handler]
#5  0x00007f36be054a6e in KDecorationUnstable::compositingActive (this=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.2.98/kwin/lib/kdecoration.cpp:398
#6  0x00007f36a8c4b6f8 in Oxygen::OxygenClient::updateWindowShape (this=0x7e5db0) at /usr/src/debug/kdebase-workspace-4.2.98/kwin/clients/oxygen/oxygenclient.cpp:469
#7  0x00007f36be059600 in KCommonDecoration::eventFilter (this=0x7e5db0, o=0x7f8830, e=0x7fff6a2d7b00) at /usr/src/debug/kdebase-workspace-4.2.98/kwin/lib/kcommondecoration.cpp:860
#8  0x00007f36bf529c48 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x7f8830, event=0x7fff6a2d7b00) at kernel/qcoreapplication.cpp:726
#9  0x00007f36c2354adc in QApplicationPrivate::notify_helper (this=0x656120, receiver=0x7f8830, e=0x7fff6a2d7b00) at kernel/qapplication.cpp:4052
#10 0x00007f36c235cd9a in QApplication::notify (this=0x656010, receiver=0x7f8830, e=0x7fff6a2d7b00) at kernel/qapplication.cpp:4021
#11 0x00007f36bcd4171b in KApplication::notify (this=0x656010, receiver=0x7f8830, event=0x7fff6a2d7b00) at /usr/src/debug/kdelibs-4.2.98/kdeui/kernel/kapplication.cpp:302
#12 0x00007f36bf52a94c in QCoreApplication::notifyInternal (this=0x656010, receiver=0x7f8830, event=0x7fff6a2d7b00) at kernel/qcoreapplication.cpp:610
#13 0x00007f36c23a4353 in QWidgetPrivate::sendPendingMoveAndResizeEvents (this=0x7ef1d0, recursive=false, disableUpdates=false) at ../../src/corelib/kernel/qcoreapplication.h:213
#14 0x00007f36c23aa7c3 in QWidgetPrivate::show_helper (this=0x7e8338) at kernel/qwidget.cpp:6697
#15 0x00007f36c23aae8a in QWidget::setVisible (this=0x7f8830, visible=<value optimized out>) at kernel/qwidget.cpp:6975
#16 0x00007f36c23aac5e in QWidgetPrivate::showChildren (this=<value optimized out>, spontaneous=false) at ../../src/gui/kernel/qwidget.h:473
#17 0x00007f36c23aa7df in QWidgetPrivate::show_helper (this=0x7e85c0) at kernel/qwidget.cpp:6703
#18 0x00007f36c23aae8a in QWidget::setVisible (this=0x7e8310, visible=<value optimized out>) at kernel/qwidget.cpp:6975
#19 0x0000000000417538 in KWD::Window::resizeDecoration (this=0x7e8310, force=<value optimized out>) at /usr/include/QtGui/qwidget.h:473
#20 0x000000000041c9e0 in Window (this=0x7e8310, parentId=<value optimized out>, clientId=<value optimized out>, frame=0, type=<value optimized out>, x=0, y=0, w=1, h=1) at window.cpp:158
#21 0x00000000004143d8 in KWD::Decorator::enableDecorations (this=0x656010, timestamp=<value optimized out>, damageEvent=<value optimized out>) at decorator.cpp:240
#22 0x000000000040c90a in main (argc=<value optimized out>, argv=0x7fff6a2d8658) at main.cpp:177

Reported using DrKonqi