Application that crashed: kde4-window-decorator
Version of the application: 0.0.1
KDE Version: 4.3.00 (KDE 4.3.0) "release 152"
Qt Version: 4.5.2
Operating System: Linux 2.6.27.25-0.1-default i686
Distribution: "openSUSE 11.1 (i586)"

What I was doing when the application crashed:
When using the "System Settings, Default Applications" utility and attempting to modify the default Window Manager from KWin to Compiz, a crash is reported and the window manager is reset to KWin.

 -- Backtrace:
Application: KDE Window Decorator (kde4-window-decorator), signal: Segmentation fault
[KCrash Handler]
#6  0x574b334e in ?? ()
#7  0xb6d31735 in KCommonDecorationUnstable::compositingActive (this=0x81ad868) at /usr/src/debug/kdebase-workspace-4.3.0/kwin/lib/kcommondecoration.cpp:1256
#8  0xa8a56b03 in Oxygen::OxygenClient::updateWindowShape (this=0x81ad868) at /usr/src/debug/kdebase-workspace-4.3.0/kwin/clients/oxygen/oxygenclient.cpp:469
#9  0xb6d339d6 in KCommonDecoration::resizeEvent (this=0x81ad868) at /usr/src/debug/kdebase-workspace-4.3.0/kwin/lib/kcommondecoration.cpp:687
#10 0xb6d31bf2 in KCommonDecoration::eventFilter (this=0x81ad868, o=0x81a7d08, e=0xbfd13e04) at /usr/src/debug/kdebase-workspace-4.3.0/kwin/lib/kcommondecoration.cpp:860
#11 0xb71f137a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x80aa888, receiver=0x81a7d08, event=0xbfd13e04) at kernel/qcoreapplication.cpp:726
#12 0xb779c7da in QApplicationPrivate::notify_helper (this=0x80aa888, receiver=0x81a7d08, e=0xbfd13e04) at kernel/qapplication.cpp:4052
#13 0xb77a4bd2 in QApplication::notify (this=0x80a9f88, receiver=0x81a7d08, e=0xbfd13e04) at kernel/qapplication.cpp:4021
#14 0xb667327d in KApplication::notify (this=0x80a9f88, receiver=0x81a7d08, event=0xbfd13e04) at /usr/src/debug/kdelibs-4.3.0/kdeui/kernel/kapplication.cpp:302
#15 0xb71f216b in QCoreApplication::notifyInternal (this=0x80a9f88, receiver=0x81a7d08, event=0xbfd13e04) at kernel/qcoreapplication.cpp:610
#16 0xb77f1aec in QWidgetPrivate::sendPendingMoveAndResizeEvents (this=0x81bb808, recursive=false, disableUpdates=false) at ../../src/corelib/kernel/qcoreapplication.h:213
#17 0xb77f87b6 in QWidgetPrivate::show_helper (this=0x81bb808) at kernel/qwidget.cpp:6697
#18 0xb77f8ee3 in QWidget::setVisible (this=0x81a7d08, visible=true) at kernel/qwidget.cpp:6975
#19 0xb77f8cb8 in QWidgetPrivate::showChildren (this=0x81b75e0, spontaneous=false) at ../../src/gui/kernel/qwidget.h:473
#20 0xb77f87e1 in QWidgetPrivate::show_helper (this=0x81b75e0) at kernel/qwidget.cpp:6703
#21 0xb77f8ee3 in QWidget::setVisible (this=0x81b6ed8, visible=true) at kernel/qwidget.cpp:6975
#22 0x0805c9cc in KWD::Window::resizeDecoration (this=0x81b6ed8, force=true) at /usr/include/QtGui/qwidget.h:473
#23 0x0805da7c in KWD::Window::createDecoration (this=0x81b6ed8) at window.cpp:795
#24 0x08062031 in Window (this=0x81b6ed8, parentId=138412094, clientId=422, frame=0, type=KWD::Window::Default, x=0, y=0, w=1, h=1) at window.cpp:158
#25 0x08059884 in KWD::Decorator::enableDecorations (this=0x80a9f88, timestamp=10804195, damageEvent=122) at decorator.cpp:240
#26 0x08051e75 in main (argc=2, argv=0xbfd14424) at main.cpp:177

This bug may be a duplicate of or related to bug 202456

Reported using DrKonqi