Application: kwin (4.7.4 (4.7.4))
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.1.0-1.2-desktop x86_64
Distribution: "openSUSE 12.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
Disabled VSync, and after that Kwin crashed.
Using flgrx64 8.920-1 on OpenSUSE 12.1

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fa24eee9760 (LWP 2525))]

Thread 2 (Thread 0x7fa2366ea700 (LWP 2556)):
#0  0x00007fa24a732e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fa24d55c852 in ?? () from /usr/lib64/libQtScript.so.4
#2  0x00007fa24d55c889 in ?? () from /usr/lib64/libQtScript.so.4
#3  0x00007fa24a72ef05 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fa24e73963d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fa24eee9760 (LWP 2525)):
[KCrash Handler]
#6  0x00007fa24e6e6bfb in __memcpy_sse2 () from /lib64/libc.so.6
#7  0x00007fa24bf79d05 in ?? () from /usr/lib64/libGL.so.1
#8  0x00007fa22a95736f in KWin::ARBBlurShader::init (this=0xfb14c0) at /usr/src/debug/kde-workspace-4.7.4/kwin/effects/blur/blurshader.cpp:463
#9  0x00007fa22a9541b5 in KWin::BlurEffect::reconfigure (this=0xfe6680, flags=<optimized out>) at /usr/src/debug/kde-workspace-4.7.4/kwin/effects/blur/blur.cpp:83
#10 0x00007fa22a95434c in KWin::BlurEffect::BlurEffect (this=0xfe6680) at /usr/src/debug/kde-workspace-4.7.4/kwin/effects/blur/blur.cpp:53
#11 0x00007fa22a954436 in KWin::effect_create_kwin4_effect_blur () at /usr/src/debug/kde-workspace-4.7.4/kwin/effects/blur/blur.cpp:33
#12 0x00007fa24ead84d2 in KWin::EffectsHandlerImpl::loadEffect (this=0xf57100, name=..., checkDefault=false) at /usr/src/debug/kde-workspace-4.7.4/kwin/effects.cpp:1125
#13 0x00007fa24ead982a in KWin::EffectsHandlerImpl::reconfigure (this=0xf57100) at /usr/src/debug/kde-workspace-4.7.4/kwin/effects.cpp:189
#14 0x00007fa24ead9d38 in KWin::EffectsHandlerImpl::EffectsHandlerImpl (this=0xf57100, type=<optimized out>) at /usr/src/debug/kde-workspace-4.7.4/kwin/effects.cpp:121
#15 0x00007fa24eaaf58d in KWin::Workspace::setupCompositing (this=0x77f9c0) at /usr/src/debug/kde-workspace-4.7.4/kwin/composite.cpp:180
#16 0x00007fa24eab0015 in KWin::Workspace::setupCompositing (this=<optimized out>) at /usr/src/debug/kde-workspace-4.7.4/kwin/composite.cpp:94
#17 0x00007fa24ea290ac in KWin::Workspace::slotReinitCompositing (this=0x77f9c0) at /usr/src/debug/kde-workspace-4.7.4/kwin/workspace.cpp:1178
#18 0x00007fa24ea2f897 in KWin::Workspace::qt_metacall (this=0x77f9c0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffa4a43e80) at /usr/src/debug/kde-workspace-4.7.4/build/kwin/workspace.moc:446
#19 0x00007fa24adf99fb in ?? () from /usr/lib64/libQtDBus.so.4
#20 0x00007fa24ae02d5f in ?? () from /usr/lib64/libQtDBus.so.4
#21 0x00007fa24aabc15a in QObject::event(QEvent*) () from /usr/lib64/libQtCore.so.4
#22 0x00007fa249c57c34 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#23 0x00007fa249c5cac1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#24 0x00007fa24e22e186 in KApplication::notify (this=0x7fffa4a44970, receiver=0x77f9c0, event=0xac5d90) at /usr/src/debug/kdelibs-4.7.4/kdeui/kernel/kapplication.cpp:311
#25 0x00007fa24aaa582c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#26 0x00007fa24aaa8c08 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQtCore.so.4
#27 0x00007fa249cfbbea in ?? () from /usr/lib64/libQtGui.so.4
#28 0x00007fa24aaa4a32 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#29 0x00007fa24aaa4c2f in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#30 0x00007fa24aaa8df7 in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#31 0x00007fa24ea4d666 in kdemain (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kde-workspace-4.7.4/kwin/main.cpp:517
#32 0x00007fa24e68123d in __libc_start_main () from /lib64/libc.so.6
#33 0x0000000000400681 in _start () at ../sysdeps/x86_64/elf/start.S:113

This bug may be a duplicate of or related to bug 270818.

Possible duplicates by query: bug 290390, bug 290325, bug 286479, bug 284656, bug 284375.

Reported using DrKonqi