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 2.6.31-20-generic x86_64
Distribution: Ubuntu 9.10

-- Information about the crash:
Compiz doesn't work because kwin decorator crashes when I try to enable it. 

The crash can be reproduced every time.

 -- Backtrace:
Application: KDE Window Decorator (kde4-window-decorator), signal: Segmentation fault
[KCrash Handler]
#5  0x0000000000000000 in ?? ()
#6  0x00007fae8c8f5c61 in KDecorationUnstable::clientGroupItems (this=<value optimized out>) at ../../../kwin/lib/kdecoration.cpp:423
#7  0x00007fae8c8fa7f7 in KCommonDecorationUnstable::clientGroupItems (this=<value optimized out>) at ../../../kwin/lib/kcommondecoration.cpp:1295
#8  0x00007fae758e3782 in Oxygen::OxygenClient::updateItemBoundingRects (this=0xdb7de0, alsoUpdate=<value optimized out>) at ../../../../kwin/clients/oxygen/oxygenclient.cpp:460
#9  0x00007fae758e49d2 in Oxygen::OxygenClient::paintEvent (this=0xdb7de0, event=<value optimized out>) at ../../../../kwin/clients/oxygen/oxygenclient.cpp:1404
#10 0x00007fae8c8faa8f in KCommonDecoration::eventFilter (this=0xdb7de0, o=0xdba4d0, e=0x7fffdf3b1160) at ../../../kwin/lib/kcommondecoration.cpp:886
#11 0x00007fae758db330 in Oxygen::OxygenClient::eventFilter (this=0xdb7de0, object=0xdba4d0, event=0x7fffdf3b1160) at ../../../../kwin/clients/oxygen/oxygenclient.cpp:1308
#12 0x00007fae8d11a227 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0xdba4d0, event=0x7fffdf3b1160) at kernel/qcoreapplication.cpp:819
#13 0x00007fae8dab10fc in QApplicationPrivate::notify_helper (this=0xcbd8f0, receiver=0xdba4d0, e=0x7fffdf3b1160) at kernel/qapplication.cpp:4296
#14 0x00007fae8dab771b in QApplication::notify (this=0xcb50e0, receiver=0xdba4d0, e=0x7fffdf3b1160) at kernel/qapplication.cpp:4183
#15 0x00007fae8b2e2d76 in KApplication::notify (this=0xcb50e0, receiver=0xdba4d0, event=0x7fffdf3b1160) at ../../kdeui/kernel/kapplication.cpp:302
#16 0x00007fae8d11ae0c in QCoreApplication::notifyInternal (this=0xcb50e0, receiver=0xdba4d0, event=0x7fffdf3b1160) at kernel/qcoreapplication.cpp:704
#17 0x00007fae8db0f75d in QCoreApplication::sendSpontaneousEvent (this=0xdbf090, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, 
    backingStore=0x0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#18 QWidgetPrivate::drawWidget (this=0xdbf090, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, backingStore=0x0)
    at kernel/qwidget.cpp:5339
#19 0x00007fae8db1067c in QWidget::render (this=<value optimized out>, target=0x7fffdf3b16e0, targetOffset=..., sourceRegion=<value optimized out>, renderFlags=) at kernel/qwidget.cpp:4938
#20 0x000000000041f50a in ?? ()
#21 0x0000000000418deb in ?? ()
#22 0x000000000041ffcc in ?? ()
#23 0x00007fae8d12dc0f in QMetaObject::activate (sender=0xdb9400, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x14) at kernel/qobject.cpp:3293
#24 0x0000000000420120 in ?? ()
#25 0x00007fae8d12dc0f in QMetaObject::activate (sender=0xdb9428, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x14) at kernel/qobject.cpp:3293
#26 0x00007fae8d12a863 in QObject::event (this=0xdb9428, e=0x7fffdf3b2170) at kernel/qobject.cpp:1212
#27 0x00007fae8dab112c in QApplicationPrivate::notify_helper (this=0xcbd8f0, receiver=0xdb9428, e=0x7fffdf3b2170) at kernel/qapplication.cpp:4300
#28 0x00007fae8dab771b in QApplication::notify (this=0xcb50e0, receiver=0xdb9428, e=0x7fffdf3b2170) at kernel/qapplication.cpp:4183
#29 0x00007fae8b2e2d76 in KApplication::notify (this=0xcb50e0, receiver=0xdb9428, event=0x7fffdf3b2170) at ../../kdeui/kernel/kapplication.cpp:302
#30 0x00007fae8d11ae0c in QCoreApplication::notifyInternal (this=0xcb50e0, receiver=0xdb9428, event=0x7fffdf3b2170) at kernel/qcoreapplication.cpp:704
#31 0x00007fae8d147a62 in QCoreApplication::sendEvent (this=0xcc1580) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#32 QTimerInfoList::activateTimers (this=0xcc1580) at kernel/qeventdispatcher_unix.cpp:603
#33 0x00007fae8d144644 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#34 0x00007fae8a5b9bce in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#35 0x00007fae8a5bd598 in ?? () from /lib/libglib-2.0.so.0
#36 0x00007fae8a5bd6c0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#37 0x00007fae8d144333 in QEventDispatcherGlib::processEvents (this=0xca2f10, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#38 0x00007fae8db60f0e in QGuiEventDispatcherGlib::processEvents (this=0x7fffdf3b0990, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x00007fae8d119732 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#40 0x00007fae8d119b0c in QEventLoop::exec (this=0x7fffdf3b2410, flags=) at kernel/qeventloop.cpp:201
#41 0x00007fae8d11d84b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#42 0x000000000040a935 in ?? ()
#43 0x00007fae8b929abd in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fffdf3b2858) at libc-start.c:220
#44 0x0000000000409f79 in ?? ()
#45 0x00007fffdf3b2858 in ?? ()
#46 0x000000000000001c in ?? ()
#47 0x0000000000000001 in ?? ()
#48 0x00007fffdf3b4a22 in ?? ()
#49 0x0000000000000000 in ?? ()

Possible duplicates by query: bug 229797, bug 229127, bug 227544, bug 226359, bug 220902.

Reported using DrKonqi