Application: kwin (4.5.3 (KDE 4.5.3) "release 8")
KDE Platform Version: 4.5.3 (KDE 4.5.3) "release 8"
Qt Version: 4.6.3
Operating System: Linux 2.6.34.7-0.5-desktop x86_64
Distribution: "openSUSE 11.3 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
I was trying to apply font settings for anti aliasing through the System settings

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[KCrash Handler]
#6  dri2DrawableGetMSC (psc=0x726d20, pdraw=0x0, ust=0x7fff056caf98, msc=0x7fff056caf90, sbc=0x7fff056caf88) at dri2_glx.c:226
#7  0x00007f46d336a185 in __glXGetVideoSyncSGI (count=0x7fff056cafdc) at glxcmds.c:2317
#8  0x00007f46d58beb91 in KWin::SceneOpenGL::waitSync (this=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.3/kwin/scene_opengl.cpp:788
#9  0x00007f46d58d26a0 in KWin::SceneOpenGL::flushBuffer (this=0xb21f70, mask=<value optimized out>, damage=...) at /usr/src/debug/kdebase-workspace-4.5.3/kwin/scene_opengl.cpp:837
#10 0x00007f46d591c660 in KWin::SceneOpenGL::paint (this=0xb21f70, damage=..., toplevels=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.3/kwin/scene_opengl.cpp:768
#11 0x00007f46d58fd56b in KWin::Workspace::performCompositing (this=0x71eb70) at /usr/src/debug/kdebase-workspace-4.5.3/kwin/composite.cpp:454
#12 0x00007f46d592ada5 in KWin::Workspace::qt_metacall (this=0x71eb70, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff056cb420)
    at /usr/src/debug/kdebase-workspace-4.5.3/build/kwin/workspace.moc:583
#13 0x00007f46d1f19a1f in QMetaObject::activate (sender=0x71f038, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3295
#14 0x00007f46d1f1722e in QObject::event (this=0x71f038, e=0x7fff056cbbc0) at kernel/qobject.cpp:1212
#15 0x00007f46d10da4d4 in QApplicationPrivate::notify_helper (this=0x6345c0, receiver=0x71f038, e=0x7fff056cbbc0) at kernel/qapplication.cpp:4302
#16 0x00007f46d10e2aca in QApplication::notify (this=<value optimized out>, receiver=0x71f038, e=0x7fff056cbbc0) at kernel/qapplication.cpp:4185
#17 0x00007f46d506e7b6 in KApplication::notify (this=0x7fff056cc0d0, receiver=0x71f038, event=0x7fff056cbbc0) at /usr/src/debug/kdelibs-4.5.3/kdeui/kernel/kapplication.cpp:310
#18 0x00007f46d1f05e4c in QCoreApplication::notifyInternal (this=0x7fff056cc0d0, receiver=0x71f038, event=0x7fff056cbbc0) at kernel/qcoreapplication.cpp:726
#19 0x00007f46d1f310c9 in sendEvent (this=0x634fb0) at kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x634fb0) at kernel/qeventdispatcher_unix.cpp:618
#21 0x00007f46d1f318c0 in QEventDispatcherUNIX::processEvents (this=0x612010, flags=...) at kernel/qeventdispatcher_unix.cpp:939
#22 0x00007f46d117bcbc in QEventDispatcherX11::processEvents (this=0x612010, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#23 0x00007f46d1f05292 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007f46d1f05495 in QEventLoop::exec (this=0x7fff056cc010, flags=...) at kernel/qeventloop.cpp:201
#25 0x00007f46d1f0988b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#26 0x00007f46d59294a4 in kdemain (argc=<value optimized out>, argv=0x7fff056cc0d0) at /usr/src/debug/kdebase-workspace-4.5.3/kwin/main.cpp:531
#27 0x00007f46d5520b7d in __libc_start_main () from /lib64/libc.so.6
#28 0x0000000000400699 in _start () at ../sysdeps/x86_64/elf/start.S:113

Possible duplicates by query: bug 256037, bug 253698, bug 253664, bug 252999, bug 252853.

Reported using DrKonqi