Application: kwin (4.5.95 (4.6 RC2))
KDE Platform Version: 4.5.95 (4.6 RC2)
Qt Version: 4.7.1
Operating System: Linux 2.6.37-12-generic x86_64
Distribution: Ubuntu natty (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
start screensaver, after few minutes login into desktop, type password and kwin crash

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f20f0c3b7a0 (LWP 2148))]

Thread 3 (Thread 0x7f20d4527700 (LWP 2154)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f20d4526ad0 in ?? ()
#2  0x00007fffd37ff7b2 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 2 (Thread 0x7f20d3d26700 (LWP 2155)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f20ef2f8412 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f20ef611180) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f20ef2f8449 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7f20ef61f254) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f20e6cead8c in start_thread (arg=0x7f20d3d26700) at pthread_create.c:304
#4  0x00007f20f049161d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f20f0c3b7a0 (LWP 2148)):
[KCrash Handler]
#6  prepare_wm_surfaces (brw=0x1eb4590) at brw_wm_surface_state.c:558
#7  0x00007f20d78ad7ce in brw_validate_state (brw=0x1eb4590) at brw_state_upload.c:397
#8  0x00007f20d789f2dc in brw_try_draw_prims (ctx=0x1eb4590, arrays=0x1e2e610, prim=0x1e2cd2c, nr_prims=0, ib=0x0, index_bounds_valid=<value optimized out>, min_index=0, max_index=3) at brw_draw.c:370
#9  brw_draw_prims (ctx=0x1eb4590, arrays=0x1e2e610, prim=0x1e2cd2c, nr_prims=0, ib=0x0, index_bounds_valid=<value optimized out>, min_index=0, max_index=3) at brw_draw.c:455
#10 0x00007f20d7533579 in vbo_exec_vtx_flush (exec=<value optimized out>, unmap=1 '\001') at vbo/vbo_exec_draw.c:384
#11 0x00007f20d753155c in vbo_exec_FlushVertices_internal (ctx=<value optimized out>, unmap=<value optimized out>) at vbo/vbo_exec_api.c:876
#12 0x00007f20d75316f2 in vbo_exec_FlushVertices (ctx=0x1eb4590, flags=1) at vbo/vbo_exec_api.c:910
#13 0x00007f20d746f30e in _mesa_PopAttrib () at main/attrib.c:887
#14 0x00007f20ee8e1a55 in KWin::PaintClipper::Iterator::~Iterator (this=0x7fffd36f6d70, __in_chrg=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:873
#15 0x00007f20ee8ead42 in KWin::renderGLGeometry (region=..., count=4, vertices=0x23d0760, texture=0x228d030, color=0x0, dim=2, stride=0) at ../../../kwin/lib/kwinglutils.cpp:180
#16 0x00007f20f0800916 in KWin::SceneOpenGL::Window::paintDecoration (this=0x2385240, decoration=<value optimized out>, decorationType=KWin::SceneOpenGL::Window::DecorationTop, region=..., rect=..., data=..., quads=..., updateDeco=true) at ../../kwin/scene_opengl.cpp:1627
#17 0x00007f20f08067ea in KWin::SceneOpenGL::Window::performPaint (this=0x2385240, mask=9, region=..., data=...) at ../../kwin/scene_opengl.cpp:1539
#18 0x00007f20f07f19a9 in KWin::Scene::finalDrawWindow (this=<value optimized out>, w=<value optimized out>, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/scene.cpp:332
#19 0x00007f20f080ee56 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:247
#20 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#21 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#22 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#23 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#24 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#25 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#26 0x00007f20d6328ba9 in KWin::ShadowEffect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=..., data=...) at ../../../kwin/effects/shadow/shadow.cpp:250
#27 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#28 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#29 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#30 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#31 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#32 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#33 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#34 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#35 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#36 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#37 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#38 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#39 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#40 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#41 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#42 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#43 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#44 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#45 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#46 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#47 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#48 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#49 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#50 0x00007f20ee8e0818 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#51 0x00007f20f080eee7 in KWin::EffectsHandlerImpl::drawWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#52 0x00007f20f07f1268 in KWin::Scene::finalPaintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/scene.cpp:323
#53 0x00007f20f080efe6 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:204
#54 0x00007f20ee8e0918 in KWin::Effect::paintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:242
#55 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#56 0x00007f20d62f52b2 in KWin::DashboardEffect::paintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=..., data=...) at ../../../kwin/effects/dashboard/dashboard.cpp:100
#57 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#58 0x00007f20d630bad5 in KWin::LogoutEffect::paintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=..., data=...) at ../../../kwin/effects/logout/logout.cpp:198
#59 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#60 0x00007f20ee8e0918 in KWin::Effect::paintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:242
#61 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#62 0x00007f20d6312eed in KWin::PresentWindowsEffect::paintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:379
#63 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#64 0x00007f20d6332b69 in KWin::TaskbarThumbnailEffect::paintWindow (this=0x23755a0, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../../kwin/effects/taskbarthumbnail/taskbarthumbnail.cpp:70
#65 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#66 0x00007f20d6308ef9 in KWin::HighlightWindowEffect::paintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=..., data=...) at ../../../kwin/effects/highlightwindow/highlightwindow.cpp:104
#67 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#68 0x00007f20d6300f34 in KWin::DialogParentEffect::paintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=..., data=...) at ../../../kwin/effects/dialogparent/dialogparent.cpp:70
#69 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#70 0x00007f20d6304f19 in KWin::FadeEffect::paintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=..., data=...) at ../../../kwin/effects/fade/fade.cpp:160
#71 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#72 0x00007f20d62fa1b8 in KWin::DesktopGridEffect::paintWindow (this=0x22ab600, w=0x23c0e90, mask=9, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:400
#73 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#74 0x00007f20d632c5f4 in KWin::SlideEffect::paintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=..., data=...) at ../../../kwin/effects/slide/slide.cpp:165
#75 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#76 0x00007f20d62ec821 in KWin::BoxSwitchEffect::paintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:241
#77 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#78 0x00007f20d6348417 in KWin::CubeEffect::paintWindow (this=0x2373410, w=0x23c0e90, mask=9, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:1581
#79 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#80 0x00007f20ee8e0918 in KWin::Effect::paintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:242
#81 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#82 0x00007f20d633cceb in KWin::CoverSwitchEffect::paintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:504
#83 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#84 0x00007f20d630a82e in KWin::LoginEffect::paintWindow (this=<value optimized out>, w=0x23c0e90, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/effects/login/login.cpp:69
#85 0x00007f20f080f077 in KWin::EffectsHandlerImpl::paintWindow (this=0x225f680, w=0x23c0e90, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#86 0x00007f20f07f1ba7 in KWin::Scene::paintWindow (this=<value optimized out>, w=0x2385240, mask=9, region=..., quads=<value optimized out>) at ../../kwin/scene.cpp:317
#87 0x00007f20f07f24ef in KWin::Scene::paintSimpleScreen (this=0x1ea1850, orig_mask=8, region=...) at ../../kwin/scene.cpp:288
#88 0x00007f20f07f11b1 in KWin::Scene::finalPaintScreen (this=0x1ea1850, mask=8, region=<value optimized out>, data=<value optimized out>) at ../../kwin/scene.cpp:180
#89 0x00007f20f080f1f9 in KWin::EffectsHandlerImpl::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:173
#90 0x00007f20d6364a76 in KWin::StartupFeedbackEffect::paintScreen (this=0x2352480, mask=8, region=<value optimized out>, data=...) at ../../../kwin/effects/startupfeedback/startupfeedback.cpp:166
#91 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#92 0x00007f20ee8e0988 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#93 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#94 0x00007f20d630be5d in KWin::LogoutEffect::paintScreen (this=0x2371fd0, mask=8, region=..., data=...) at ../../../kwin/effects/logout/logout.cpp:207
#95 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#96 0x00007f20d6326fab in KWin::ShadowEffect::paintScreen (this=0x22a3a50, mask=8, region=..., data=...) at ../../../kwin/effects/shadow/shadow.cpp:189
#97 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#98 0x00007f20d63109dd in KWin::PresentWindowsEffect::paintScreen (this=0x22a9710, mask=8, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:205
#99 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#100 0x00007f20ee8e0988 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#101 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#102 0x00007f20ee8e0988 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#103 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#104 0x00007f20ee8e0988 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#105 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#106 0x00007f20ee8e0988 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#107 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#108 0x00007f20d62f7ef5 in KWin::DesktopGridEffect::paintScreen (this=<value optimized out>, mask=8, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:155
#109 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#110 0x00007f20d632d5cf in KWin::SlideEffect::paintScreen (this=<value optimized out>, mask=8, region=..., data=...) at ../../../kwin/effects/slide/slide.cpp:86
#111 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#112 0x00007f20d62f0add in KWin::BoxSwitchEffect::paintScreen (this=0x23124a0, mask=8, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:143
#113 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#114 0x00007f20d63477c6 in KWin::CubeEffect::paintScreen (this=<value optimized out>, mask=8, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:698
#115 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#116 0x00007f20ee8e0988 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#117 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#118 0x00007f20d6340346 in KWin::CoverSwitchEffect::paintScreen (this=0x237b060, mask=8, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:126
#119 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#120 0x00007f20ee8e0988 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#121 0x00007f20f080f283 in KWin::EffectsHandlerImpl::paintScreen (this=0x225f680, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#122 0x00007f20f07f35df in KWin::Scene::paintScreen (this=0x1ea1850, mask=0x7fffd36fae2c, region=0x7fffd36faef0) at ../../kwin/scene.cpp:137
#123 0x00007f20f0807433 in KWin::SceneOpenGL::paint (this=0x1ea1850, damage=..., toplevels=<value optimized out>) at ../../kwin/scene_opengl.cpp:771
#124 0x00007f20f07ee926 in KWin::Workspace::performCompositing (this=0x1dee210) at ../../kwin/composite.cpp:448
#125 0x00007f20ec868779 in QObject::event (this=0x1dee210, e=<value optimized out>) at kernel/qobject.cpp:1183
#126 0x00007f20ebc05b24 in QApplicationPrivate::notify_helper (this=0x1cad030, receiver=0x1dee210, e=0x7fffd36fb680) at kernel/qapplication.cpp:4445
#127 0x00007f20ebc0a45a in QApplication::notify (this=<value optimized out>, receiver=0x1dee210, e=0x7fffd36fb680) at kernel/qapplication.cpp:4324
#128 0x00007f20eff926d6 in KApplication::notify (this=0x7fffd36fba80, receiver=0x1dee210, event=0x7fffd36fb680) at ../../kdeui/kernel/kapplication.cpp:311
#129 0x00007f20ec854aec in QCoreApplication::notifyInternal (this=0x7fffd36fba80, receiver=0x1dee210, event=0x7fffd36fb680) at kernel/qcoreapplication.cpp:732
#130 0x00007f20ec8824c2 in sendEvent (this=0x1cada40) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#131 QTimerInfoList::activateTimers (this=0x1cada40) at kernel/qeventdispatcher_unix.cpp:603
#132 0x00007f20ec88260b in QEventDispatcherUNIX::processEvents (this=0x1c842d0, flags=...) at kernel/qeventdispatcher_unix.cpp:922
#133 0x00007f20ebcac8ac in QEventDispatcherX11::processEvents (this=0x1c842d0, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#134 0x00007f20ec853ed2 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#135 0x00007f20ec85410c in QEventLoop::exec (this=0x7fffd36fb9c0, flags=...) at kernel/qeventloop.cpp:201
#136 0x00007f20ec85851b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#137 0x00007f20f078c94c in kdemain (argc=<value optimized out>, argv=0x7fffd36fc118) at ../../kwin/main.cpp:542
#138 0x00007f20f03cfd1e in __libc_start_main (main=0x400740 <main(int, char**)>, argc=3, ubp_av=0x7fffd36fc118, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffd36fc108) at libc-start.c:226
#139 0x0000000000400669 in _start ()

Possible duplicates by query: bug 241688.

Reported using DrKonqi