Application: kde4-window-decorator (0.0.1)
KDE Platform Version: 4.4.1 (KDE 4.4.1)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-16-generic x86_64
Distribution: Ubuntu lucid (development branch)

-- Information about the crash:
Compiz KDE Window Decorator crashes immediately after changing window managers in System Settings.

The crash can be reproduced every time.

 -- Backtrace:
Application: KDE Window Decorator (kde4-window-decorator), signal: Segmentation fault
[KCrash Handler]
#5  0x00007fc51d1e6c5e in KDecorationUnstable::compositingActive (this=<value optimized out>) at ../../../kwin/lib/kdecoration.cpp:406
#6  0x00007fc505534d6e in Oxygen::OxygenClient::layoutMetric (this=0xdda7f0, lm=KCommonDecoration::LM_BorderLeft, respectWindowState=true, btn=<value optimized out>)
    at ../../../../kwin/clients/oxygen/oxygenclient.cpp:310
#7  0x00007fc51d1ed01e in KCommonDecoration::borders (this=0xdd9b90, left=@0xdd9c08, right=@0xdd9c0c, top=@0xdd9c10, bottom=@0xdd9c14) at ../../../kwin/lib/kcommondecoration.cpp:169
#8  0x000000000041455a in KWD::Window::resizeDecoration (this=0xdd9b80, force=true) at ../../../kde/window-decorator-kde4/window.cpp:836
#9  0x0000000000418580 in Window (this=0xdd9b80, parentId=<value optimized out>, clientId=<value optimized out>, frame=<value optimized out>, type=<value optimized out>, x=-1650092768, y=0, w=1, h=1)
    at ../../../kde/window-decorator-kde4/window.cpp:152
#10 0x0000000000411c12 in KWD::Decorator::enableDecorations (this=0xc96590, timestamp=<value optimized out>) at ../../../kde/window-decorator-kde4/decorator.cpp:212
#11 0x000000000040ad9b in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../kde/window-decorator-kde4/main.cpp:113

Reported using DrKonqi