Application: kwin (4.5.1 (KDE 4.5.1))
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-22-generic x86_64
Distribution: Ubuntu 10.10

-- Information about the crash:
- What I was doing when the application crashed:
KWIn crashes directly after I activated the effects. I'm using the nouveau graphics card driver on Ubuntu 10.10

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Aborted
[Current thread is 1 (Thread 0x7f47d741b780 (LWP 2707))]

Thread 2 (Thread 0x7f47b3f89710 (LWP 2713)):
#0  0x00007f47d6c972b3 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f47d357176e in qt_safe_select (nfds=19, fdread=0x236da20, fdwrite=0x236dcb8, fdexcept=0x236df50, orig_timeout=0x0) at kernel/qcore_unix.cpp:82
#2  0x00007f47d3576beb in QEventDispatcherUNIXPrivate::doSelect (this=0x236d860, flags=<value optimized out>, timeout=<value optimized out>) at kernel/qeventdispatcher_unix.cpp:219
#3  0x00007f47d357781b in QEventDispatcherUNIX::processEvents (this=0x2c4b6f0, flags=) at kernel/qeventdispatcher_unix.cpp:919
#4  0x00007f47d3546a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f47d3546dec in QEventLoop::exec (this=0x7f47b3f88d90, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f47d34512fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007f47d35265f8 in QInotifyFileSystemWatcherEngine::run (this=0x23a44e0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f47d345427e in QThreadPrivate::start (arg=0x23a44e0) at thread/qthread_unix.cpp:266
#9  0x00007f47d31c9971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#10 0x00007f47d6c9e91d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f47d741b780 (LWP 2707)):
[KCrash Handler]
#6  0x00007f47d6bebba5 in raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007f47d6bef6b0 in abort () at abort.c:92
#8  0x00007f47d6be4a71 in __assert_fail (assertion=0x7f47bbcb0a9e "0", file=<value optimized out>, line=4138, function=0x7f47bbc8bda0 "nv50_program_validate") at assert.c:81
#9  0x00007f47bbad2978 in ?? () from /usr/lib/dri/nouveau_dri.so
#10 0x00007f47bbad2f93 in ?? () from /usr/lib/dri/nouveau_dri.so
#11 0x00007f47bbad5f99 in ?? () from /usr/lib/dri/nouveau_dri.so
#12 0x00007f47bbac280b in ?? () from /usr/lib/dri/nouveau_dri.so
#13 0x00007f47bbbf2b52 in ?? () from /usr/lib/dri/nouveau_dri.so
#14 0x00007f47bbb867df in ?? () from /usr/lib/dri/nouveau_dri.so
#15 0x00007f47bbb821cc in ?? () from /usr/lib/dri/nouveau_dri.so
#16 0x00007f47bbb83ec2 in ?? () from /usr/lib/dri/nouveau_dri.so
#17 0x00007f47bbae3cce in ?? () from /usr/lib/dri/nouveau_dri.so
#18 0x00007f47d55d0f29 in KWin::PaintClipper::Iterator::~Iterator (this=0x7fff09d23840, __in_chrg=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:969
#19 0x00007f47d55dd428 in KWin::renderGLGeometry (region=<value optimized out>, count=4, vertices=<value optimized out>, texture=0x239f3b0, color=0x0, dim=2, stride=0) at ../../../kwin/lib/kwinglutils.cpp:187
#20 0x00007f47d70001b8 in KWin::SceneOpenGL::Window::renderQuads (this=<value optimized out>, region=..., quads=...) at ../../kwin/scene_opengl.cpp:1655
#21 0x00007f47d70051f1 in KWin::SceneOpenGL::Window::performPaint (this=0x31a3550, mask=38, region=) at ../../kwin/scene_opengl.cpp:1525
#22 0x00007f47d6ff4d23 in KWin::Scene::finalDrawWindow (this=<value optimized out>, w=<value optimized out>, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/scene.cpp:330
#23 0x00007f47d700d7a9 in KWin::EffectsHandlerImpl::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:232
#24 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#25 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#26 0x00007f47bafb9bc6 in KWin::ShadowEffect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=<value optimized out>, region=<value optimized out>, data=...) at ../../../kwin/effects/shadow/shadow.cpp:250
#27 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#28 0x00007f47bafc9c73 in KWin::BlurEffect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=<value optimized out>, region=<value optimized out>, data=...) at ../../../kwin/effects/blur/blur.cpp:328
#29 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#30 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#31 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#32 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#33 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#34 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#35 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#36 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#37 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#38 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#39 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#40 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#41 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#42 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#43 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#44 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#45 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#46 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#47 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#48 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#49 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#50 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#51 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#52 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#53 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#54 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#55 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#56 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#57 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#58 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#59 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#60 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#61 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#62 0x00007f47d55d080c in KWin::Effect::drawWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#63 0x00007f47d700d848 in KWin::EffectsHandlerImpl::drawWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:228
#64 0x00007f47d6ff39cc in KWin::Scene::finalPaintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/scene.cpp:321
#65 0x00007f47d700d8c9 in KWin::EffectsHandlerImpl::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:203
#66 0x00007f47baf992c5 in KWin::LogoutEffect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=) at ../../../kwin/effects/logout/logout.cpp:198
#67 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#68 0x00007f47d55d089c in KWin::Effect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:242
#69 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#70 0x00007f47d55d089c in KWin::Effect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:242
#71 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#72 0x00007f47baf9f3da in KWin::PresentWindowsEffect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=) at ../../../kwin/effects/presentwindows/presentwindows.cpp:370
#73 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#74 0x00007f47bafe1fdf in KWin::ExplosionEffect::paintWindow (this=0x2de5da0, w=0x2c946a0, mask=<value optimized out>, region=<value optimized out>, data=...) at ../../../kwin/effects/explosion/explosion.cpp:175
#75 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#76 0x00007f47bafc49c7 in KWin::TaskbarThumbnailEffect::paintWindow (this=0x2ef61e0, w=0x2c946a0, mask=38, region=<value optimized out>, data=...) at ../../../kwin/effects/taskbarthumbnail/taskbarthumbnail.cpp:70
#77 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#78 0x00007f47baf962b4 in KWin::HighlightWindowEffect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=) at ../../../kwin/effects/highlightwindow/highlightwindow.cpp:104
#79 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#80 0x00007f47baf8dadd in KWin::DialogParentEffect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=) at ../../../kwin/effects/dialogparent/dialogparent.cpp:70
#81 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#82 0x00007f47baf9199c in KWin::FadeEffect::paintWindow (this=0x2899f70, w=0x2c946a0, mask=<value optimized out>, region=<value optimized out>, data=...) at ../../../kwin/effects/fade/fade.cpp:150
#83 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#84 0x00007f47bafc4142 in KWin::SlidingPopupsEffect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=<value optimized out>, region=<value optimized out>, data=...) at ../../../kwin/effects/slidingpopups/slidingpopups.cpp:127
#85 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#86 0x00007f47baf8739a in KWin::DesktopGridEffect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=<value optimized out>, region=<value optimized out>, data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:392
#87 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#88 0x00007f47bafbe374 in KWin::SlideEffect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=) at ../../../kwin/effects/slide/slide.cpp:165
#89 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#90 0x00007f47baf76ee4 in KWin::BoxSwitchEffect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=) at ../../../kwin/effects/boxswitch/boxswitch.cpp:241
#91 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#92 0x00007f47bafd4790 in KWin::CubeEffect::paintWindow (this=0x2df92d0, w=0x2c946a0, mask=38, region=<value optimized out>, data=...) at ../../../kwin/effects/cube/cube.cpp:1580
#93 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#94 0x00007f47baf9cbaf in KWin::TranslucencyEffect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=) at ../../../kwin/effects/translucency/translucency.cpp:180
#95 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#96 0x00007f47baf9e4fd in KWin::MinimizeAnimationEffect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=) at ../../../kwin/effects/minimizeanimation/minimizeanimation.cpp:103
#97 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#98 0x00007f47bafccb0d in KWin::CoverSwitchEffect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=) at ../../../kwin/effects/coverswitch/coverswitch.cpp:500
#99 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#100 0x00007f47baffdd2f in KWin::WobblyWindowsEffect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=<value optimized out>, region=<value optimized out>, data=...) at ../../../kwin/effects/wobblywindows/wobblywindows.cpp:357
#101 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#102 0x00007f47baf97fa3 in KWin::LoginEffect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/effects/login/login.cpp:69
#103 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#104 0x00007f47d55d089c in KWin::Effect::paintWindow (this=<value optimized out>, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:242
#105 0x00007f47d700d968 in KWin::EffectsHandlerImpl::paintWindow (this=0x269c570, w=0x2c946a0, mask=38, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:199
#106 0x00007f47d6ff4f6c in KWin::Scene::paintWindow (this=<value optimized out>, w=0x31a3550, mask=38, region=) at ../../kwin/scene.cpp:315
#107 0x00007f47d6ff64ff in KWin::Scene::paintGenericScreen (this=0x24df580, orig_mask=<value optimized out>) at ../../kwin/scene.cpp:213
#108 0x00007f47d6ff3aaa in KWin::Scene::finalPaintScreen (this=0x24df580, mask=32, region=<value optimized out>, data=...) at ../../kwin/scene.cpp:177
#109 0x00007f47d700d9e6 in KWin::EffectsHandlerImpl::paintScreen (this=<value optimized out>, mask=32, region=) at ../../kwin/effects.cpp:172
#110 0x00007f47baf996ef in KWin::LogoutEffect::paintScreen (this=0x2c35120, mask=32, region=<value optimized out>, data=...) at ../../../kwin/effects/logout/logout.cpp:207
#111 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#112 0x00007f47bafb977c in KWin::ShadowEffect::paintScreen (this=0x2315450, mask=32, region=) at ../../../kwin/effects/shadow/shadow.cpp:189
#113 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#114 0x00007f47bafc85ce in KWin::BlurEffect::paintScreen (this=<value optimized out>, mask=32, region=) at ../../../kwin/effects/blur/blur.cpp:235
#115 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#116 0x00007f47baf9fb32 in KWin::PresentWindowsEffect::paintScreen (this=0x298ef70, mask=32, region=) at ../../../kwin/effects/presentwindows/presentwindows.cpp:196
#117 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#118 0x00007f47d55d091f in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#119 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#120 0x00007f47d55d091f in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#121 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#122 0x00007f47d55d091f in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#123 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#124 0x00007f47d55d091f in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#125 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#126 0x00007f47d55d091f in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#127 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#128 0x00007f47d55d091f in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#129 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#130 0x00007f47baf82fe9 in KWin::DesktopGridEffect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:155
#131 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#132 0x00007f47bafbeba5 in KWin::SlideEffect::paintScreen (this=<value optimized out>, mask=<value optimized out>, region=<value optimized out>, data=...) at ../../../kwin/effects/slide/slide.cpp:86
#133 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#134 0x00007f47baf7db82 in KWin::BoxSwitchEffect::paintScreen (this=0x2e8fac0, mask=32, region=) at ../../../kwin/effects/boxswitch/boxswitch.cpp:142
#135 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#136 0x00007f47bafd8512 in KWin::CubeEffect::paintScreen (this=<value optimized out>, mask=32, region=) at ../../../kwin/effects/cube/cube.cpp:697
#137 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#138 0x00007f47d55d091f in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#139 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#140 0x00007f47d55d091f in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#141 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#142 0x00007f47bafcee34 in KWin::CoverSwitchEffect::paintScreen (this=0x2db37b0, mask=32, region=<value optimized out>, data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:124
#143 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#144 0x00007f47d55d091f in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#145 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#146 0x00007f47d55d091f in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#147 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#148 0x00007f47bafc7fe1 in KWin::ZoomEffect::paintScreen (this=<value optimized out>, mask=32, region=) at ../../../kwin/effects/zoom/zoom.cpp:73
#149 0x00007f47d700da7e in KWin::EffectsHandlerImpl::paintScreen (this=0x269c570, mask=32, region=) at ../../kwin/effects.cpp:168
#150 0x00007f47d6ff5195 in KWin::Scene::paintScreen (this=0x24df580, mask=0x7fff09d28a0c, region=0x7fff09d28b30) at ../../kwin/scene.cpp:137
#151 0x00007f47d7006450 in KWin::SceneOpenGL::paint (this=0x24df580, damage=<value optimized out>, toplevels=<value optimized out>) at ../../kwin/scene_opengl.cpp:754
#152 0x00007f47d6ff02a7 in KWin::Workspace::performCompositing (this=<value optimized out>) at ../../kwin/composite.cpp:454
#153 0x00007f47d6f717dd in KWin::Workspace::qt_metacall (this=0x24eb110, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff09d28ce0) at ./workspace.moc:583
#154 0x00007f47d355fb27 in QMetaObject::activate (sender=0x24eb5d8, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0xffffffffffffffff) at kernel/qobject.cpp:3280
#155 0x00007f47d35598f9 in QObject::event (this=0x24eb5d8, e=0xa93) at kernel/qobject.cpp:1183
#156 0x00007f47d2691fdc in QApplicationPrivate::notify_helper (this=0x2317db0, receiver=0x24eb5d8, e=0x7fff09d29430) at kernel/qapplication.cpp:4396
#157 0x00007f47d2697aed in QApplication::notify (this=0x7fff09d29820, receiver=0x24eb5d8, e=0x7fff09d29430) at kernel/qapplication.cpp:4277
#158 0x00007f47d679a156 in KApplication::notify (this=0x7fff09d29820, receiver=0x24eb5d8, event=0x7fff09d29430) at ../../kdeui/kernel/kapplication.cpp:310
#159 0x00007f47d3547cdc in QCoreApplication::notifyInternal (this=0x7fff09d29820, receiver=0x24eb5d8, event=0x7fff09d29430) at kernel/qcoreapplication.cpp:732
#160 0x00007f47d35776f2 in sendEvent (this=0x23187c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#161 QTimerInfoList::activateTimers (this=0x23187c0) at kernel/qeventdispatcher_unix.cpp:602
#162 0x00007f47d357782c in QEventDispatcherUNIX::processEvents (this=0x22f46e0, flags=) at kernel/qeventdispatcher_unix.cpp:923
#163 0x00007f47d2745c2f in QEventDispatcherX11::processEvents (this=<value optimized out>, flags=) at kernel/qeventdispatcher_x11.cpp:152
#164 0x00007f47d3546a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#165 0x00007f47d3546dec in QEventLoop::exec (this=0x7fff09d29760, flags=) at kernel/qeventloop.cpp:201
#166 0x00007f47d354aebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#167 0x00007f47d6f8df9d in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../kwin/main.cpp:531
#168 0x00007f47d6bd6d8e in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff09d29e28) at libc-start.c:226
#169 0x0000000000400669 in _start ()

Reported using DrKonqi