Application: kwin (4.7.2 (4.7.2) "release 5")
KDE Platform Version: 4.7.2 (4.7.2) "release 5"
Qt Version: 4.7.4
Operating System: Linux 3.1.0-1.2-desktop x86_64
Distribution (Platform): openSUSE RPMs

-- Information about the crash:
- What I was doing when the application crashed:
I switched -as recommended- desktop effects from "accurate" to "smooth"

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f425c4ff760 (LWP 5720))]

Thread 2 (Thread 0x7f4243d8e700 (LWP 5730)):
#0  0x00007f4257d41e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f425ab6b852 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f425ae63e80) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f425ab6b889 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f4257d3df05 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f425bd4753d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f425c4ff760 (LWP 5720)):
[KCrash Handler]
#6  0x00007f425bd8d440 in __memcpy_ssse3 () from /lib64/libc.so.6
#7  0x00007f4259588d05 in __indirect_glProgramParameters4fvNV (target=1, index=10934260, num=1543474968, params=0xa93de0) at /usr/include/bits/string3.h:52
#8  0x00007f42422e3dbf in KWin::ARBBlurShader::init (this=0xa6d7e0) at /usr/src/debug/kde-workspace-4.7.2/kwin/effects/blur/blurshader.cpp:463
#9  0x00007f42422e0c05 in KWin::BlurEffect::reconfigure (this=0xa6c7f0, flags=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/kwin/effects/blur/blur.cpp:83
#10 0x00007f42422e0d9c in KWin::BlurEffect::BlurEffect (this=0xa6c7f0) at /usr/src/debug/kde-workspace-4.7.2/kwin/effects/blur/blur.cpp:53
#11 0x00007f42422e0e86 in KWin::effect_create_kwin4_effect_blur () at /usr/src/debug/kde-workspace-4.7.2/kwin/effects/blur/blur.cpp:33
#12 0x00007f425c0e6752 in KWin::EffectsHandlerImpl::loadEffect (this=0x90ac10, name=..., checkDefault=false) at /usr/src/debug/kde-workspace-4.7.2/kwin/effects.cpp:1125
#13 0x00007f425c0e7aaa in KWin::EffectsHandlerImpl::reconfigure (this=0x90ac10) at /usr/src/debug/kde-workspace-4.7.2/kwin/effects.cpp:189
#14 0x00007f425c0e7fb8 in KWin::EffectsHandlerImpl::EffectsHandlerImpl (this=0x90ac10, type=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/kwin/effects.cpp:121
#15 0x00007f425c0bd3dd in KWin::Workspace::setupCompositing (this=0x70b540) at /usr/src/debug/kde-workspace-4.7.2/kwin/composite.cpp:180
#16 0x00007f425c0bde65 in KWin::Workspace::setupCompositing (this=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/kwin/composite.cpp:94
#17 0x00007f425c03708c in KWin::Workspace::slotReinitCompositing (this=0x70b540) at /usr/src/debug/kde-workspace-4.7.2/kwin/workspace.cpp:1182
#18 0x00007f425c03d7f7 in KWin::Workspace::qt_metacall (this=0x70b540, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff06b62d50) at /usr/src/debug/kde-workspace-4.7.2/build/kwin/workspace.moc:446
#19 0x00007f42584089fb in QDBusConnectionPrivate::deliverCall (this=0x6381a0, object=0x70b540, msg=..., metaTypes=..., slotIdx=96) at qdbusintegrator.cpp:942
#20 0x00007f4258411d5f in QDBusCallDeliveryEvent::placeMetaCall (this=<optimized out>, object=<optimized out>) at qdbusintegrator_p.h:103
#21 0x00007f42580cb14a in QObject::event (this=0x70b540, e=<optimized out>) at kernel/qobject.cpp:1226
#22 0x00007f4257266c34 in notify_helper (e=0x940890, receiver=0x70b540, this=0x6477d0) at kernel/qapplication.cpp:4481
#23 QApplicationPrivate::notify_helper (this=0x6477d0, receiver=0x70b540, e=0x940890) at kernel/qapplication.cpp:4453
#24 0x00007f425726bac1 in QApplication::notify (this=0x7fff06b63840, receiver=0x70b540, e=0x940890) at kernel/qapplication.cpp:4360
#25 0x00007f425b83be36 in KApplication::notify (this=0x7fff06b63840, receiver=0x70b540, event=0x940890) at /usr/src/debug/kdelibs-4.7.2/kdeui/kernel/kapplication.cpp:311
#26 0x00007f42580b481c in QCoreApplication::notifyInternal (this=0x7fff06b63840, receiver=0x70b540, event=0x940890) at kernel/qcoreapplication.cpp:787
#27 0x00007f42580b7bf8 in sendEvent (event=0x940890, receiver=0x70b540) at kernel/qcoreapplication.h:215
#28 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x607a70) at kernel/qcoreapplication.cpp:1428
#29 0x00007f425730abea in sendPostedEvents () at ../../src/corelib/kernel/qcoreapplication.h:220
#30 QEventDispatcherX11::processEvents (this=0x607280, flags=...) at kernel/qeventdispatcher_x11.cpp:75
#31 0x00007f42580b3a22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#32 0x00007f42580b3c1f in QEventLoop::exec (this=0x7fff06b63780, flags=...) at kernel/qeventloop.cpp:201
#33 0x00007f42580b7de7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#34 0x00007f425c05b5f6 in kdemain (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/kwin/main.cpp:517
#35 0x00007f425bc8f23d in __libc_start_main () from /lib64/libc.so.6
#36 0x0000000000400681 in _start () at ../sysdeps/x86_64/elf/start.S:113

Possible duplicates by query: bug 286479, bug 284656, bug 284375, bug 284308, bug 284307.

Reported using DrKonqi