Application: kwin (4.9.5 "release 3")
KDE Platform Version: 4.9.5 "release 3"
Qt Version: 4.8.4
Operating System: Linux 3.6.10-1-desktop x86_64
Distribution: "openSUSE 12.2 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
screensaver is running more than three days.
A VMware virtual machine (9.0.1) is running as well.

All updates from
http://download.opensuse.org/repositories/KDE:/Release:/49/openSUSE_12.2/
are installed.

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f978798b780 (LWP 2233))]

Thread 3 (Thread 0x7f975ef7e700 (LWP 2263)):
#0  0x00007f9782a578f4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f975f12d4e3 in ?? () from /usr/lib64/dri/r600_dri.so
#2  0x00007f9782a53e0e in start_thread () from /lib64/libpthread.so.0
#3  0x00007f97871b32cd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f975e77d700 (LWP 2265)):
#0  0x00007f9782a578f4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f97840a6247 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f97843b3640 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f97840a6279 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f9782a53e0e in start_thread () from /lib64/libpthread.so.0
#4  0x00007f97871b32cd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f978798b780 (LWP 2233)):
[KCrash Handler]
#6  0x00007f975f112a3d in ?? () from /usr/lib64/dri/r600_dri.so
#7  0x00007f975f113734 in ?? () from /usr/lib64/dri/r600_dri.so
#8  0x00007f975f2a575e in ?? () from /usr/lib64/dri/r600_dri.so
#9  0x00007f975f2a4f3f in ?? () from /usr/lib64/dri/r600_dri.so
#10 0x00007f975f1ea8bf in ?? () from /usr/lib64/dri/r600_dri.so
#11 0x00007f975f1e3b63 in ?? () from /usr/lib64/dri/r600_dri.so
#12 0x00007f9783afb2de in KWin::GLVertexBufferPrivate::corePainting (this=0x1b8a240, region=..., primitiveMode=4, hardwareClipping=false) at /usr/src/debug/kde-workspace-4.9.5/kwin/libkwineffects/kwinglutils.cpp:1218
#13 0x00007f9783afb7fd in KWin::GLVertexBuffer::render (this=0x1b84810, region=..., primitiveMode=4, hardwareClipping=false) at /usr/src/debug/kde-workspace-4.9.5/kwin/libkwineffects/kwinglutils.cpp:1341
#14 0x00007f978753355f in renderQuads (hardwareClipping=false, normalized=<optimized out>, tex=<optimized out>, quads=..., region=..., this=<optimized out>) at /usr/src/debug/kde-workspace-4.9.5/kwin/scene_opengl.cpp:795
#15 KWin::SceneOpenGL::Window::renderQuads (this=<optimized out>, region=..., quads=..., tex=<optimized out>, normalized=<optimized out>, hardwareClipping=false) at /usr/src/debug/kde-workspace-4.9.5/kwin/scene_opengl.cpp:774
#16 0x00007f97875399bb in KWin::SceneOpenGL::Window::performPaint (this=0x20123e0, mask=9, region=..., data=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/scene_opengl.cpp:593
#17 0x00007f9787525596 in KWin::Scene::finalDrawWindow (this=<optimized out>, w=0x2240500, mask=9, region=..., data=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/scene.cpp:454
#18 0x00007f978754405a in KWin::EffectsHandlerImpl::drawWindow (this=0x1c2be60, w=w@entry=0x2240500, mask=mask@entry=9, region=..., data=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/effects.cpp:310
#19 0x00007f976c19d9ed in KWin::BlurEffect::drawWindow (this=<optimized out>, w=0x2240500, mask=9, region=..., data=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/effects/blur/blur.cpp:405
#20 0x00007f9787543ffb in KWin::EffectsHandlerImpl::drawWindow (this=0x1c2be60, w=w@entry=0x2240500, mask=mask@entry=9, region=..., data=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/effects.cpp:307
#21 0x00007f9787524a0a in KWin::Scene::finalPaintWindow (this=<optimized out>, w=0x2240500, mask=9, region=..., data=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/scene.cpp:439
#22 0x00007f9787543c0a in KWin::EffectsHandlerImpl::paintWindow (this=0x1c2be60, w=w@entry=0x2240500, mask=mask@entry=9, region=..., data=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/effects.cpp:273
#23 0x00007f9785968c4a in KWin::Effect::paintWindow (this=<optimized out>, w=0x2240500, mask=9, region=..., data=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/libkwineffects/kwineffects.cpp:157
#24 0x00007f9787543bab in KWin::EffectsHandlerImpl::paintWindow (this=0x1c2be60, w=0x2240500, mask=mask@entry=9, region=..., data=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/effects.cpp:270
#25 0x00007f97875277dd in KWin::Scene::paintWindow (this=<optimized out>, w=0x20123e0, mask=9, region=..., quads=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/scene.cpp:348
#26 0x00007f9787526b3f in KWin::Scene::paintSimpleScreen (this=this@entry=0x19b7310, orig_mask=orig_mask@entry=8, region=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/scene.cpp:334
#27 0x00007f9787524952 in KWin::Scene::finalPaintScreen (this=0x19b7310, mask=8, region=..., data=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/scene.cpp:192
#28 0x00007f9787543dd3 in KWin::EffectsHandlerImpl::paintScreen (this=0x1c2be60, mask=mask@entry=8, region=..., data=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/effects.cpp:246
#29 0x00007f9785968cb7 in KWin::Effect::paintScreen (this=this@entry=0x1d90e50, mask=mask@entry=8, region=..., data=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/libkwineffects/kwineffects.cpp:142
#30 0x00007f9787543d7b in KWin::EffectsHandlerImpl::paintScreen (this=0x1c2be60, mask=8, region=..., data=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/effects.cpp:243
#31 0x00007f9787525f9b in KWin::Scene::paintScreen (this=0x19b7310, mask=0x7fff7364319c, region=0x7fff73643240) at /usr/src/debug/kde-workspace-4.9.5/kwin/scene.cpp:146
#32 0x00007f978753abbd in KWin::SceneOpenGL::paint (this=0x19b7310, damage=..., toplevels=...) at /usr/src/debug/kde-workspace-4.9.5/kwin/scene_opengl_glx.cpp:499
#33 0x00007f978751fc98 in KWin::Workspace::performCompositing (this=0x191d2d0) at /usr/src/debug/kde-workspace-4.9.5/kwin/composite.cpp:443
#34 0x00007f9782dfa40c in QObject::event (this=0x191d2d0, e=<optimized out>) at kernel/qobject.cpp:1165
#35 0x00007f9781f7285c in QApplicationPrivate::notify_helper (this=this@entry=0x17ecfc0, receiver=receiver@entry=0x191d2d0, e=e@entry=0x7fff736439d0) at kernel/qapplication.cpp:4562
#36 0x00007f9781f76cda in QApplication::notify (this=0x7fff73644010, receiver=0x191d2d0, e=0x7fff736439d0) at kernel/qapplication.cpp:4423
#37 0x00007f9786cb0636 in KApplication::notify (this=0x7fff73644010, receiver=0x191d2d0, event=0x7fff736439d0) at /usr/src/debug/kdelibs-4.9.5/kdeui/kernel/kapplication.cpp:311
#38 0x00007f9782de5bfe in QCoreApplication::notifyInternal (this=0x7fff73644010, receiver=0x191d2d0, event=0x7fff736439d0) at kernel/qcoreapplication.cpp:946
#39 0x00007f9782e169a1 in sendEvent (event=0x7fff736439d0, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#40 QTimerInfoList::activateTimers (this=0x17ed9b8) at kernel/qeventdispatcher_unix.cpp:637
#41 0x00007f9782e16fe0 in QEventDispatcherUNIX::activateTimers (this=this@entry=0x17a4a70) at kernel/qeventdispatcher_unix.cpp:894
#42 0x00007f9782e17138 in QEventDispatcherUNIX::processEvents (this=0x17a4a70, flags=...) at kernel/qeventdispatcher_unix.cpp:956
#43 0x00007f9782013a0f in QEventDispatcherX11::processEvents (this=0x17a4a70, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#44 0x00007f9782de494f in QEventLoop::processEvents (this=this@entry=0x7fff73643d20, flags=...) at kernel/qeventloop.cpp:149
#45 0x00007f9782de4bd8 in QEventLoop::exec (this=0x7fff73643d20, flags=...) at kernel/qeventloop.cpp:204
#46 0x00007f9782de9878 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#47 0x00007f97874d98b4 in kdemain (argc=3, argv=0x7fff73644158) at /usr/src/debug/kde-workspace-4.9.5/kwin/main.cpp:545
#48 0x00007f97870f0455 in __libc_start_main () from /lib64/libc.so.6
#49 0x0000000000400721 in _start () at ../sysdeps/x86_64/elf/start.S:113

This bug may be a duplicate of or related to bug 299333.

Possible duplicates by query: bug 312686, bug 312468, bug 312336, bug 311671, bug 310612.

Reported using DrKonqi