Application: kwin (4.4.2 (KDE 4.4.2))
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.31-20-generic x86_64
Distribution: Ubuntu 9.10

-- Information about the crash:
I was on the phone, looking at the screen, and suddendly kwin crashed

 -- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
The current source language is "auto; currently c".
[KCrash Handler]
#5  0x00007fd90782b8ff in ?? () from /usr/lib/libGLcore.so.1
#6  0x00007fd90782bc4a in ?? () from /usr/lib/libGLcore.so.1
#7  0x00007fd90767d4e5 in ?? () from /usr/lib/libGLcore.so.1
#8  0x00007fd90766e32d in ?? () from /usr/lib/libGLcore.so.1
#9  0x00007fd90725e0e7 in ?? () from /usr/lib/libGLcore.so.1
#10 0x00007fd90725e558 in ?? () from /usr/lib/libGLcore.so.1
#11 0x00007fd9076712fe in ?? () from /usr/lib/libGLcore.so.1
#12 0x00007fd9072908b9 in ?? () from /usr/lib/libGLcore.so.1
#13 0x00007fd90f59a237 in KWin::renderGLGeometry (region=<value optimized out>, count=32, vertices=<value optimized out>, texture=0x480e790, color=0x0, dim=2, stride=0)
    at ../../../kwin/lib/kwinglutils.cpp:168
#14 0x00007fd910d7421a in KWin::SceneOpenGL::Window::paintDecoration (this=0x4230b40, decoration=0x266df30, decorationType=KWin::SceneOpenGL::Window::DecorationTop, region=<value optimized out>, 
    rect=<value optimized out>, data=..., quads=..., updateDeco=false) at ../../kwin/scene_opengl.cpp:1604
#15 0x00007fd910d77002 in KWin::SceneOpenGL::Window::performPaint (this=0x4230b40, mask=9, region=) at ../../kwin/scene_opengl.cpp:1505
#16 0x00007fd910d6808b in KWin::Scene::finalDrawWindow (this=<value optimized out>, w=<value optimized out>, mask=9, region=) at ../../kwin/scene.cpp:324
#17 0x00007fd910d7e479 in KWin::EffectsHandlerImpl::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>)
    at ../../kwin/effects.cpp:178
#18 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#19 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#20 0x00007fd8fd1a950c in KWin::ShadowEffect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=) at ../../../kwin/effects/shadow/shadow.cpp:250
#21 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#22 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#23 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#24 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#25 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#26 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#27 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#28 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#29 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#30 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#31 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#32 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#33 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#34 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#35 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#36 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#37 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#38 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#39 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#40 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#41 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#42 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#43 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#44 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#45 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#46 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#47 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#48 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#49 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#50 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#51 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#52 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#53 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#54 0x00007fd90f58dfbc in KWin::Effect::drawWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:252
#55 0x00007fd910d7e518 in KWin::EffectsHandlerImpl::drawWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:174
#56 0x00007fd910d674cc in KWin::Scene::finalPaintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/scene.cpp:318
#57 0x00007fd910d7e599 in KWin::EffectsHandlerImpl::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>)
    at ../../kwin/effects.cpp:157
#58 0x00007fd8fd188ce5 in KWin::LogoutEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=<value optimized out>, region=) at ../../../kwin/effects/logout/logout.cpp:187
#59 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#60 0x00007fd90f58e04c in KWin::Effect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>)
    at ../../../kwin/lib/kwineffects.cpp:242
#61 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#62 0x00007fd8fd18f82c in KWin::PresentWindowsEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=) at ../../../kwin/effects/presentwindows/presentwindows.cpp:359
#63 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#64 0x00007fd8fd1b3c07 in KWin::TaskbarThumbnailEffect::paintWindow (this=0x1c62e60, w=0x273ff50, mask=9, region=<value optimized out>, data=...)
    at ../../../kwin/effects/taskbarthumbnail/taskbarthumbnail.cpp:71
#65 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#66 0x00007fd8fd1866c4 in KWin::HighlightWindowEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=) at ../../../kwin/effects/highlightwindow/highlightwindow.cpp:104
#67 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#68 0x00007fd8fd17e62d in KWin::DialogParentEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=) at ../../../kwin/effects/dialogparent/dialogparent.cpp:70
#69 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#70 0x00007fd8fd1821a2 in KWin::FadeEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=<value optimized out>, region=<value optimized out>, data=...)
    at ../../../kwin/effects/fade/fade.cpp:160
#71 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#72 0x00007fd8fd1b30c2 in KWin::SlidingPopupsEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=<value optimized out>, region=<value optimized out>, data=...)
    at ../../../kwin/effects/slidingpopups/slidingpopups.cpp:127
#73 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#74 0x00007fd8fd17f46b in KWin::DimInactiveEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=) at ../../../kwin/effects/diminactive/diminactive.cpp:78
#75 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#76 0x00007fd8fd1d4043 in KWin::FlipSwitchEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=) at ../../../kwin/effects/flipswitch/flipswitch.cpp:543
#77 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#78 0x00007fd8fd178081 in KWin::DesktopGridEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=<value optimized out>, region=<value optimized out>, data=...)
    at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:359
#79 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#80 0x00007fd8fd1ad4f4 in KWin::SlideEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=) at ../../../kwin/effects/slide/slide.cpp:165
#81 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#82 0x00007fd8fd16b8f4 in KWin::BoxSwitchEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=) at ../../../kwin/effects/boxswitch/boxswitch.cpp:241
#83 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#84 0x00007fd8fd18cfdf in KWin::TranslucencyEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=) at ../../../kwin/effects/translucency/translucency.cpp:180
#85 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#86 0x00007fd8fd18e93d in KWin::MinimizeAnimationEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=) at ../../../kwin/effects/minimizeanimation/minimizeanimation.cpp:103
#87 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#88 0x00007fd8fd1b820d in KWin::CoverSwitchEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=) at ../../../kwin/effects/coverswitch/coverswitch.cpp:500
#89 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#90 0x00007fd8fd1e3a2f in KWin::WobblyWindowsEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=<value optimized out>, region=<value optimized out>, data=...)
    at ../../../kwin/effects/wobblywindows/wobblywindows.cpp:357
#91 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#92 0x00007fd8fd1883e3 in KWin::LoginEffect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>)
    at ../../../kwin/effects/login/login.cpp:69
#93 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#94 0x00007fd90f58e04c in KWin::Effect::paintWindow (this=<value optimized out>, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>)
    at ../../../kwin/lib/kwineffects.cpp:242
#95 0x00007fd910d7e638 in KWin::EffectsHandlerImpl::paintWindow (this=0x1a6cd60, w=0x273ff50, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/effects.cpp:153
#96 0x00007fd910d68c3c in KWin::Scene::paintWindow (this=<value optimized out>, w=0x4230b40, mask=9, region=) at ../../kwin/scene.cpp:312
#97 0x00007fd910d6a00a in KWin::Scene::paintSimpleScreen (this=0x1a6aa80, orig_mask=<value optimized out>, region=<value optimized out>) at ../../kwin/scene.cpp:283
#98 0x00007fd910d67545 in KWin::Scene::finalPaintScreen (this=0x1a6aa80, mask=8, region=<value optimized out>, data=<value optimized out>) at ../../kwin/scene.cpp:176
#99 0x00007fd910d7e6b6 in KWin::EffectsHandlerImpl::paintScreen (this=<value optimized out>, mask=8, region=) at ../../kwin/effects.cpp:126
#100 0x00007fd8fd18988f in KWin::LogoutEffect::paintScreen (this=0x1c5dff0, mask=8, region=<value optimized out>, data=...) at ../../../kwin/effects/logout/logout.cpp:196
#101 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#102 0x00007fd8fd1a90ac in KWin::ShadowEffect::paintScreen (this=0x1c68200, mask=8, region=) at ../../../kwin/effects/shadow/shadow.cpp:189
#103 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#104 0x00007fd8fd18ff62 in KWin::PresentWindowsEffect::paintScreen (this=0x1c8a3d0, mask=8, region=) at ../../../kwin/effects/presentwindows/presentwindows.cpp:196
#105 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#106 0x00007fd90f58e0cf in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#107 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#108 0x00007fd90f58e0cf in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#109 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#110 0x00007fd90f58e0cf in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#111 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#112 0x00007fd90f58e0cf in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#113 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#114 0x00007fd90f58e0cf in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#115 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#116 0x00007fd90f58e0cf in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#117 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#118 0x00007fd8fd1d1e87 in KWin::FlipSwitchEffect::paintScreen (this=0x1c513f0, mask=8, region=<value optimized out>, data=...) at ../../../kwin/effects/flipswitch/flipswitch.cpp:146
#119 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#120 0x00007fd8fd174bf2 in KWin::DesktopGridEffect::paintScreen (this=<value optimized out>, mask=<value optimized out>, region=<value optimized out>, data=...)
    at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:151
#121 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#122 0x00007fd8fd1add25 in KWin::SlideEffect::paintScreen (this=<value optimized out>, mask=<value optimized out>, region=<value optimized out>, data=...) at ../../../kwin/effects/slide/slide.cpp:86
#123 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#124 0x00007fd8fd172902 in KWin::BoxSwitchEffect::paintScreen (this=0x1c82110, mask=8, region=) at ../../../kwin/effects/boxswitch/boxswitch.cpp:142
#125 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#126 0x00007fd90f58e0cf in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#127 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#128 0x00007fd90f58e0cf in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#129 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#130 0x00007fd8fd1b9fe4 in KWin::CoverSwitchEffect::paintScreen (this=0x1c6d640, mask=8, region=<value optimized out>, data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:124
#131 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#132 0x00007fd90f58e0cf in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#133 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#134 0x00007fd90f58e0cf in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#135 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#136 0x00007fd8fd1b6c01 in KWin::ZoomEffect::paintScreen (this=<value optimized out>, mask=8, region=) at ../../../kwin/effects/zoom/zoom.cpp:73
#137 0x00007fd910d7e74e in KWin::EffectsHandlerImpl::paintScreen (this=0x1a6cd60, mask=8, region=) at ../../kwin/effects.cpp:122
#138 0x00007fd910d68e65 in KWin::Scene::paintScreen (this=0x1a6aa80, mask=0x7fff663569cc, region=0x7fff66356af0) at ../../kwin/scene.cpp:134
#139 0x00007fd910d78f30 in KWin::SceneOpenGL::paint (this=0x1a6aa80, damage=<value optimized out>, toplevels=<value optimized out>) at ../../kwin/scene_opengl.cpp:748
#140 0x00007fd910d63ff7 in KWin::Workspace::performCompositing (this=<value optimized out>) at ../../kwin/composite.cpp:424
#141 0x00007fd910cede5e in KWin::Workspace::qt_metacall (this=0x1b3e200, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff66356ca0) at ./workspace.moc:535
#142 0x00007fd90c961c0f in QMetaObject::activate (sender=0x1b3e670, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7ffa) at kernel/qobject.cpp:3293
#143 0x00007fd90c95e863 in QObject::event (this=0x1b3e670, e=0x7fff663573f0) at kernel/qobject.cpp:1212
#144 0x00007fd90d09d12c in QApplicationPrivate::notify_helper (this=0x18a1740, receiver=0x1b3e670, e=0x7fff663573f0) at kernel/qapplication.cpp:4300
#145 0x00007fd90d0a371b in QApplication::notify (this=0x7fff66357750, receiver=0x1b3e670, e=0x7fff663573f0) at kernel/qapplication.cpp:4183
#146 0x00007fd910533076 in KApplication::notify (this=0x7fff66357750, receiver=0x1b3e670, event=0x7fff663573f0) at ../../kdeui/kernel/kapplication.cpp:302
#147 0x00007fd90c94ee0c in QCoreApplication::notifyInternal (this=0x7fff66357750, receiver=0x1b3e670, event=0x7fff663573f0) at kernel/qcoreapplication.cpp:704
#148 0x00007fd90c97ba62 in QCoreApplication::sendEvent (this=0x18a54e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#149 QTimerInfoList::activateTimers (this=0x18a54e0) at kernel/qeventdispatcher_unix.cpp:603
#150 0x00007fd90c978668 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#151 idleTimerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#152 0x00007fd905ff3bce in g_main_dispatch (context=0x18a4520) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:1960
#153 IA__g_main_context_dispatch (context=0x18a4520) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2513
#154 0x00007fd905ff7598 in g_main_context_iterate (context=0x18a4520, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2591
#155 0x00007fd905ff76c0 in IA__g_main_context_iteration (context=0x18a4520, may_block=1) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2654
#156 0x00007fd90c978333 in QEventDispatcherGlib::processEvents (this=0x18884b0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#157 0x00007fd90d14cf0e in QGuiEventDispatcherGlib::processEvents (this=0x1ac85f0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#158 0x00007fd90c94d732 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#159 0x00007fd90c94db0c in QEventLoop::exec (this=0x7fff66357690, flags=) at kernel/qeventloop.cpp:201
#160 0x00007fd90c95184b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#161 0x00007fd910d0761e in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../kwin/main.cpp:526
#162 0x00007fd910967abd 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=0x7fff66357c58) at libc-start.c:220
#163 0x0000000000400679 in _start () at ../sysdeps/x86_64/elf/start.S:113

Reported using DrKonqi