Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa5c7866780 (LWP 14085))]

Thread 3 (Thread 0x7fa5afacb700 (LWP 14086)):
#0  0x00007fa5c70a0f23 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fa5c27c0b41 in QProcessManager::run (this=0x7fa5c2b384e0) at io/qprocess_unix.cpp:245
#2  0x00007fa5c26e9c1b in QThreadPrivate::start (arg=0x7fa5c2b384e0) at thread/qthread_unix.cpp:298
#3  0x00007fa5c2453e2c in start_thread () from /lib64/libpthread.so.0
#4  0x00007fa5c70a74ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7fa5a7fff700 (LWP 14089)):
#0  0x00007fa5c2457d6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fa5c3aefbd2 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fa5c3de7e80) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fa5c3aefc09 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fa5c2453e2c in start_thread () from /lib64/libpthread.so.0
#4  0x00007fa5c70a74ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7fa5c7866780 (LWP 14085)):
[KCrash Handler]
#6  intel_miptree_release (mt=0x220) at intel_mipmap_tree.c:290
#7  0x00007fa5aecf1b65 in intel_process_dri2_buffer_with_separate_stencil (intel=0x25211a0, buffer=0x2ccd678, rb=0x2e86ce0, buffer_name=<optimized out>, drawable=<optimized out>) at intel_context.c:1269
#8  0x00007fa5aecf1f40 in intel_update_renderbuffers (context=<optimized out>, drawable=0x23ea940) at intel_context.c:361
#9  0x00007fa5aecffadd in intelSetTexBuffer2 (pDRICtx=0x2507740, target=3553, texture_format=8410, dPriv=0x23ea940) at intel_tex_image.c:335
#10 0x00007fa5c7418354 in KWin::SceneOpenGL::Texture::load (this=<optimized out>, pix=<optimized out>, size=..., depth=32, region=...) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/scene_opengl_glx.cpp:679
#11 0x00007fa5c7415f93 in load (depth=32, size=..., pix=@0x7fff0889aa48: 85998626, this=0x2c7e820) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/scene_opengl.cpp:316
#12 KWin::SceneOpenGL::Texture::load (this=0x2c7e820, pix=@0x7fff0889aa48: 85998626, size=..., depth=32) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/scene_opengl.cpp:310
#13 0x00007fa5c7416199 in KWin::SceneOpenGL::Texture::load (this=0x2c7e820, pixmap=..., target=<optimized out>) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/scene_opengl.cpp:338
#14 0x00007fa5c741ad23 in KWin::SceneOpenGL::EffectFrame::updateTextTexture (this=0x2a2acd0) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/scene_opengl.cpp:1523
#15 0x00007fa5c7420408 in KWin::SceneOpenGL::EffectFrame::render (this=0x2a2acd0, region=..., opacity=0.019853157161528467, frameOpacity=1) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/scene_opengl.cpp:1465
#16 0x00007fa5c742abb4 in KWin::EffectFrameImpl::finalRender (this=0x2a4ed90, region=..., opacity=<optimized out>, frameOpacity=1) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/effects.cpp:1950
#17 0x00007fa5c742c622 in KWin::EffectsHandlerImpl::paintEffectFrame (this=<optimized out>, frame=0x2a4eda0, region=..., opacity=0.019853157161528467, frameOpacity=1) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/effects.cpp:259
#18 0x00007fa5aced49ff in KWin::BlurEffect::paintEffectFrame (this=<optimized out>, frame=0x2a4eda0, region=..., opacity=0.019853157161528467, frameOpacity=1) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/effects/blur/blur.cpp:400
#19 0x00007fa5c742c5bc in KWin::EffectsHandlerImpl::paintEffectFrame (this=0x27d7100, frame=0x2a4eda0, region=..., opacity=0.019853157161528467, frameOpacity=1) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/effects.cpp:255
#20 0x00007fa5c51b196f in KWin::Effect::paintEffectFrame (this=<optimized out>, frame=0x2a4eda0, region=..., opacity=<optimized out>, frameOpacity=1) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/libkwineffects/kwineffects.cpp:166
#21 0x00007fa5c742c5bc in KWin::EffectsHandlerImpl::paintEffectFrame (this=0x27d7100, frame=0x2a4eda0, region=..., opacity=0.019853157161528467, frameOpacity=1) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/effects.cpp:255
#22 0x00007fa5c51b196f in KWin::Effect::paintEffectFrame (this=<optimized out>, frame=0x2a4eda0, region=..., opacity=<optimized out>, frameOpacity=1) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/libkwineffects/kwineffects.cpp:166
#23 0x00007fa5c742c5bc in KWin::EffectsHandlerImpl::paintEffectFrame (this=0x27d7100, frame=0x2a4eda0, region=..., opacity=0.019853157161528467, frameOpacity=1) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/effects.cpp:255
#24 0x00007fa5c51b196f in KWin::Effect::paintEffectFrame (this=<optimized out>, frame=0x2a4eda0, region=..., opacity=<optimized out>, frameOpacity=1) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/libkwineffects/kwineffects.cpp:166
#25 0x00007fa5c742c5bc in KWin::EffectsHandlerImpl::paintEffectFrame (this=0x27d7100, frame=0x2a4eda0, region=..., opacity=0.019853157161528467, frameOpacity=1) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/effects.cpp:255
#26 0x00007fa5c742aaf8 in KWin::EffectFrameImpl::render (this=0x2a4ed90, region=..., opacity=<optimized out>, frameOpacity=1) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/effects.cpp:1943
#27 0x00007fa5acedee88 in KWin::CoverSwitchEffect::paintScreen (this=0x3f945462d2eca840, mask=<optimized out>, region=..., data=...) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/effects/coverswitch/coverswitch.cpp:388
#28 0x00007fa5c742c8ab in KWin::EffectsHandlerImpl::paintScreen (this=0x27d7100, mask=32, region=..., data=...) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/effects.cpp:219
#29 0x00007fa5c740aa15 in KWin::Scene::paintScreen (this=0x250c2c0, mask=0x7fff0889be98, region=0x7fff0889bf60) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/scene.cpp:156
#30 0x00007fa5c7421d3d in KWin::SceneOpenGL::paint (this=0x250c2c0, damage=..., toplevels=...) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/scene_opengl_glx.cpp:459
#31 0x00007fa5c7404dec in KWin::Workspace::performCompositing (this=0x26c36d0) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/composite.cpp:412
#32 0x00007fa5c27fec79 in QObject::event (this=0x26c36d0, e=<optimized out>) at kernel/qobject.cpp:1157
#33 0x00007fa5c197fcc4 in notify_helper (e=0x7fff0889c6a0, receiver=0x26c36d0, this=0x22b9920) at kernel/qapplication.cpp:4554
#34 QApplicationPrivate::notify_helper (this=0x22b9920, receiver=0x26c36d0, e=0x7fff0889c6a0) at kernel/qapplication.cpp:4526
#35 0x00007fa5c1985431 in QApplication::notify (this=0x7fff0889cab0, receiver=0x26c36d0, e=0x7fff0889c6a0) at kernel/qapplication.cpp:3936
#36 0x00007fa5c6b93b16 in KApplication::notify (this=0x7fff0889cab0, receiver=0x26c36d0, event=0x7fff0889c6a0) at /var/tmp/paludis/kde-base-kdelibs-4.8.3/work/kdelibs-4.8.3/kdeui/kernel/kapplication.cpp:311
#37 0x00007fa5c27e653c in QCoreApplication::notifyInternal (this=0x7fff0889cab0, receiver=0x26c36d0, event=0x7fff0889c6a0) at kernel/qcoreapplication.cpp:876
#38 0x00007fa5c2816772 in sendEvent (event=0x7fff0889c6a0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#39 QTimerInfoList::activateTimers (this=0x22ba368) at kernel/qeventdispatcher_unix.cpp:611
#40 0x00007fa5c2817234 in QEventDispatcherUNIX::processEvents (this=0x2254ad0, flags=...) at kernel/qeventdispatcher_unix.cpp:930
#41 0x00007fa5c1a22366 in QEventDispatcherX11::processEvents (this=0x2254ad0, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#42 0x00007fa5c27e5352 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#43 0x00007fa5c27e55a7 in QEventLoop::exec (this=0x7fff0889c9f0, flags=...) at kernel/qeventloop.cpp:204
#44 0x00007fa5c27e9fd5 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#45 0x00007fa5c73ba276 in kdemain (argc=<optimized out>, argv=<optimized out>) at /var/tmp/paludis/kde-base-kwin-4.8.3/work/kwin-4.8.3/kwin/main.cpp:541
#46 0x00007fa5c6ff138d in __libc_start_main (main=0x400760 <main(int, char**)>, argc=2, ubp_av=0x7fff0889d1d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff0889d1c8) at libc-start.c:226
#47 0x0000000000400791 in _start () at ../sysdeps/x86_64/elf/start.S:113