Application: kwin (4.6.5 (4.6.5))
KDE Platform Version: 4.6.5 (4.6.5)
Qt Version: 4.7.3
Operating System: Linux 3.0.3 i686
Distribution: Debian GNU/Linux testing (wheezy)

-- Information about the crash:
- What I was doing when the application crashed:

I tried to activate desktop effects after login into KDE.
Whe I clicked "Apply", KWin crashed generating this error.

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb1c37710 (LWP 11738))]

Thread 2 (Thread 0xac712b70 (LWP 11752)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb31c020a in __pthread_cond_wait (cond=0xb6d2d490, mutex=0xb6d2d478) at pthread_cond_wait.c:153
#2  0xb7587a5d in __pthread_cond_wait (cond=0xb6d2d490, mutex=0xb6d2d478) at forward.c:139
#3  0xb6c29979 in ?? () from /usr/lib/libQtScript.so.4
#4  0xb6c299bf in ?? () from /usr/lib/libQtScript.so.4
#5  0xb31bbc39 in start_thread (arg=0xac712b70) at pthread_create.c:304
#6  0xb757a96e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb1c37710 (LWP 11738)):
[KCrash Handler]
#7  _mesa_base_fbo_format (ctx=0x0, internalFormat=36763) at main/fbobject.c:1158
#8  0xb65e0185 in _mesa_soft_renderbuffer_storage (ctx=0x0, rb=0x881d940, internalFormat=36763, width=1280, height=1024) at main/renderbuffer.c:1696
#9  0xb65b4668 in _mesa_resize_framebuffer (ctx=0x0, fb=0x8866ed8, width=1280, height=1024) at main/framebuffer.c:302
#10 0xb654af37 in XMesaCreatePixmapTextureBuffer (v=0x8197a00, p=25166333, cmap=0, format=8409, target=8412, mipmap=1) at xm_api.c:1588
#11 0xb6544ae2 in Fake_glXCreatePixmap (attribList=<optimized out>, pixmap=<optimized out>, config=<optimized out>, dpy=<optimized out>) at fakeglx.c:2176
#12 Fake_glXCreatePixmap (dpy=0x8091440, config=0x8197a00, pixmap=25166333, attribList=0xbfd02024) at fakeglx.c:2080
#13 0xb6547197 in glXCreatePixmap (dpy=0x8091440, config=0x8197a00, pixmap=25166333, attribList=0xbfd02024) at glxapi.c:478
#14 0xb7720ac0 in load (region=..., depth=24, size=..., pix=@0xbfd02114, this=0x86e3024) at ../../kwin/scene_opengl.cpp:1157
#15 KWin::SceneOpenGL::Texture::load (this=0x86e3024, pix=@0xbfd02114, size=..., depth=24, region=...) at ../../kwin/scene_opengl.cpp:1093
#16 0xb772157c in KWin::SceneOpenGL::Window::bindTexture (this=0x86e3008) at ../../kwin/scene_opengl.cpp:1372
#17 0xb77217f7 in performPaint (data=..., region=..., mask=521, this=0x86e3008) at ../../kwin/scene_opengl.cpp:1426
#18 KWin::SceneOpenGL::Window::performPaint (this=0x86e3008, mask=521, region=..., data=...) at ../../kwin/scene_opengl.cpp:1408
#19 0xb7709f47 in KWin::Scene::finalDrawWindow (this=0x81495d8, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/scene.cpp:332
#20 0xb7728e7d in KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:247
#21 0xb6a28742 in KWin::Effect::drawWindow (this=0x8566aa0, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#22 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#23 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#24 0xb6a28742 in KWin::Effect::drawWindow (this=0x85c8aa0, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#25 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#26 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#27 0xb6a28742 in KWin::Effect::drawWindow (this=0x85394f8, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#28 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#29 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#30 0xac8fb1b0 in KWin::ShadowEffect::drawWindow (this=0x8556340, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/shadow/shadow.cpp:250
#31 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#32 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#33 0xb6a28742 in KWin::Effect::drawWindow (this=0x854abe0, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#34 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#35 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#36 0xb6a28742 in KWin::Effect::drawWindow (this=0x8573dc8, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#37 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#38 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#39 0xb6a28742 in KWin::Effect::drawWindow (this=0x856ba08, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#40 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#41 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#42 0xb6a28742 in KWin::Effect::drawWindow (this=0x859d8c0, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#43 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#44 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#45 0xb6a28742 in KWin::Effect::drawWindow (this=0x8546660, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#46 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#47 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#48 0xb6a28742 in KWin::Effect::drawWindow (this=0x8548758, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#49 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#50 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#51 0xb6a28742 in KWin::Effect::drawWindow (this=0x8541918, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#52 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#53 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#54 0xb6a28742 in KWin::Effect::drawWindow (this=0x85648a8, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#55 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#56 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#57 0xb6a28742 in KWin::Effect::drawWindow (this=0x8582360, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#58 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#59 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#60 0xb6a28742 in KWin::Effect::drawWindow (this=0x85862e0, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#61 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#62 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#63 0xb6a28742 in KWin::Effect::drawWindow (this=0x8570028, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#64 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#65 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#66 0xb6a28742 in KWin::Effect::drawWindow (this=0x8533d10, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#67 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#68 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#69 0xb6a28742 in KWin::Effect::drawWindow (this=0x85533d8, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#70 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#71 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#72 0xb6a28742 in KWin::Effect::drawWindow (this=0x8583ee0, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#73 0xb7728eec in drawWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:243
#74 KWin::EffectsHandlerImpl::drawWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:239
#75 0xb77096d2 in KWin::Scene::finalPaintWindow (this=0x81495d8, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/scene.cpp:323
#76 0xb7728fad in KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:204
#77 0xb6a28862 in KWin::Effect::paintWindow (this=0x8566aa0, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:242
#78 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#79 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#80 0xac8c0f84 in KWin::DashboardEffect::paintWindow (this=0x85c8aa0, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/dashboard/dashboard.cpp:100
#81 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#82 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#83 0xac8dc331 in KWin::LogoutEffect::paintWindow (this=0x85394f8, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/logout/logout.cpp:198
#84 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#85 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#86 0xb6a28862 in KWin::Effect::paintWindow (this=0x8556348, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:242
#87 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#88 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#89 0xac8e4da7 in KWin::PresentWindowsEffect::paintWindow (this=0x854abd8, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:379
#90 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#91 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#92 0xac9078e5 in KWin::TaskbarThumbnailEffect::paintWindow (this=0x8573dc0, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/taskbarthumbnail/taskbarthumbnail.cpp:70
#93 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#94 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#95 0xac8d86cb in KWin::HighlightWindowEffect::paintWindow (this=0x856ba08, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/highlightwindow/highlightwindow.cpp:104
#96 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#97 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#98 0xac8d01ba in KWin::DialogParentEffect::paintWindow (this=0x859d8c0, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/dialogparent/dialogparent.cpp:62
#99 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#100 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#101 0xac8d4703 in KWin::FadeEffect::paintWindow (this=0x8546660, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/fade/fade.cpp:160
#102 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#103 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#104 0xac8cbb09 in KWin::DesktopGridEffect::paintWindow (this=0x8548750, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:401
#105 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#106 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#107 0xac8ff62a in KWin::SlideEffect::paintWindow (this=0x8541910, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/slide/slide.cpp:165
#108 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#109 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#110 0xac8b9612 in KWin::BoxSwitchEffect::paintWindow (this=0x85648a8, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:245
#111 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#112 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#113 0xb6a28862 in KWin::Effect::paintWindow (this=0x8582360, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:242
#114 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#115 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#116 0xac8e0920 in KWin::TranslucencyEffect::paintWindow (this=0x85862e0, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/translucency/translucency.cpp:180
#117 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#118 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#119 0xac8e1625 in KWin::MinimizeAnimationEffect::paintWindow (this=0x8570028, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/minimizeanimation/minimizeanimation.cpp:103
#120 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#121 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#122 0xac904ab3 in KWin::SlidingPopupsEffect::paintWindow (this=0x8533d10, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/slidingpopups/slidingpopups.cpp:127
#123 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#124 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#125 0xac8dae49 in KWin::LoginEffect::paintWindow (this=0x85533d8, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/effects/login/login.cpp:69
#126 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#127 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#128 0xb6a28862 in KWin::Effect::paintWindow (this=0x8583ee0, w=0x8693150, mask=521, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:242
#129 0xb772901c in paintWindow (data=..., region=..., mask=521, w=0x8693150, this=0x8507948) at ../../kwin/effects.cpp:200
#130 KWin::EffectsHandlerImpl::paintWindow (this=0x8507948, w=0x8693150, mask=521, region=..., data=...) at ../../kwin/effects.cpp:196
#131 0xb7709dd3 in paintWindow (quads=..., region=..., mask=521, w=0x86e3008, this=<optimized out>) at ../../kwin/scene.cpp:317
#132 KWin::Scene::paintWindow (this=0x81495d8, w=0x86e3008, mask=521, region=..., quads=...) at ../../kwin/scene.cpp:308
#133 0xb770c658 in KWin::Scene::paintGenericScreen (this=0x81495d8, orig_mask=520) at ../../kwin/scene.cpp:214
#134 0xb7716901 in KWin::SceneOpenGL::paintGenericScreen (this=0x81495d8, mask=520, data=...) at ../../kwin/scene_opengl.cpp:909
#135 0xb7709660 in KWin::Scene::finalPaintScreen (this=0x81495d8, mask=520, region=..., data=...) at ../../kwin/scene.cpp:178
#136 0xb7729115 in KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:173
#137 0xac93fb16 in KWin::StartupFeedbackEffect::paintScreen (this=0x8566a98, mask=520, region=..., data=...) at ../../../kwin/effects/startupfeedback/startupfeedback.cpp:166
#138 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#139 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#140 0xb6a288da in KWin::Effect::paintScreen (this=0x85c8aa0, mask=520, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#141 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#142 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#143 0xac8dc65c in KWin::LogoutEffect::paintScreen (this=0x85394f8, mask=520, region=..., data=...) at ../../../kwin/effects/logout/logout.cpp:207
#144 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#145 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#146 0xac8f92e4 in KWin::ShadowEffect::paintScreen (this=0x8556340, mask=520, region=..., data=...) at ../../../kwin/effects/shadow/shadow.cpp:189
#147 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#148 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#149 0xac8e2204 in KWin::PresentWindowsEffect::paintScreen (this=0x854abd8, mask=520, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:205
#150 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#151 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#152 0xb6a288da in KWin::Effect::paintScreen (this=0x8573dc8, mask=520, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#153 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#154 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#155 0xb6a288da in KWin::Effect::paintScreen (this=0x856ba08, mask=520, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#156 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#157 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#158 0xb6a288da in KWin::Effect::paintScreen (this=0x859d8c0, mask=520, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#159 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#160 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#161 0xb6a288da in KWin::Effect::paintScreen (this=0x8546660, mask=520, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#162 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#163 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#164 0xac8c64ba in KWin::DesktopGridEffect::paintScreen (this=0x8548750, mask=520, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:156
#165 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#166 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#167 0xac900995 in KWin::SlideEffect::paintScreen (this=0x8541910, mask=520, region=..., data=...) at ../../../kwin/effects/slide/slide.cpp:86
#168 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#169 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#170 0xac8bf81c in KWin::BoxSwitchEffect::paintScreen (this=0x85648a8, mask=520, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:143
#171 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#172 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#173 0xb6a288da in KWin::Effect::paintScreen (this=0x8582360, mask=520, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#174 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#175 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#176 0xb6a288da in KWin::Effect::paintScreen (this=0x85862e0, mask=520, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#177 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#178 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#179 0xb6a288da in KWin::Effect::paintScreen (this=0x8570028, mask=520, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#180 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#181 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#182 0xb6a288da in KWin::Effect::paintScreen (this=0x8533d10, mask=520, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#183 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#184 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#185 0xb6a288da in KWin::Effect::paintScreen (this=0x85533d8, mask=520, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#186 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#187 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#188 0xac90bea0 in KWin::ZoomEffect::paintScreen (this=0x8583ed8, mask=520, region=..., data=...) at ../../../kwin/effects/zoom/zoom.cpp:341
#189 0xb7729182 in paintScreen (data=..., region=..., mask=520, this=0x8507948) at ../../kwin/effects.cpp:169
#190 KWin::EffectsHandlerImpl::paintScreen (this=0x8507948, mask=520, region=..., data=...) at ../../kwin/effects.cpp:165
#191 0xb770cb53 in KWin::Scene::paintScreen (this=0x81495d8, mask=0xbfd056b4, region=0xbfd05768) at ../../kwin/scene.cpp:137
#192 0xb772061d in KWin::SceneOpenGL::paint (this=0x81495d8, damage=..., toplevels=...) at ../../kwin/scene_opengl.cpp:772
#193 0xb7706294 in KWin::Workspace::performCompositing (this=0x817afc0) at ../../kwin/composite.cpp:448
#194 0xb6083af4 in QObject::event (this=0x817afc0, e=0xbfd05c4c) at kernel/qobject.cpp:1181
#195 0xb55990a4 in notify_helper (e=0xbfd05c4c, receiver=0x817afc0, this=0x80806e0) at kernel/qapplication.cpp:4467
#196 QApplicationPrivate::notify_helper (this=0x80806e0, receiver=0x817afc0, e=0xbfd05c4c) at kernel/qapplication.cpp:4439
#197 0xb559e432 in QApplication::notify (this=0xbfd05c4c, receiver=0x817afc0, e=0xbfd05c4c) at kernel/qapplication.cpp:4214
#198 0xb726d511 in KApplication::notify (this=0xbfd05f4c, receiver=0x817afc0, event=0xbfd05c4c) at ../../kdeui/kernel/kapplication.cpp:311
#199 0xb769135f in notify (e=0xbfd05c4c, o=0x817afc0, this=0xbfd05f4c) at ../../kwin/main.cpp:377
#200 KWin::Application::notify (this=0xbfd05f4c, o=0x817afc0, e=0xbfd05c4c) at ../../kwin/main.cpp:373
#201 0xb606ba9e in QCoreApplication::notifyInternal (this=0xbfd05f4c, receiver=0x817afc0, event=0xbfd05c4c) at kernel/qcoreapplication.cpp:731
#202 0xb609be48 in sendEvent (event=0xbfd05c4c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#203 QTimerInfoList::activateTimers (this=0x8081470) at kernel/qeventdispatcher_unix.cpp:604
#204 0xb609c6f1 in QEventDispatcherUNIX::processEvents (this=0x804b208, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#205 0xb564f0ba in QEventDispatcherX11::processEvents (this=0x804b208, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#206 0xb606aabd in QEventLoop::processEvents (this=0xbfd05e94, flags=...) at kernel/qeventloop.cpp:149
#207 0xb606ad01 in QEventLoop::exec (this=0xbfd05e94, flags=...) at kernel/qeventloop.cpp:201
#208 0xb606f45a in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#209 0xb5596f24 in QApplication::exec () at kernel/qapplication.cpp:3741
#210 0xb7693f8d in kdemain (argc=3, argv=0xbfd061c4) at ../../kwin/main.cpp:532
#211 0x0804855b in main (argc=3, argv=0xbfd061c4) at kwin_dummy.cpp:3

Reported using DrKonqi