Application: kwin (4.6.2 (4.6.2))
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-10-generic x86_64
Distribution: Ubuntu 11.04

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

Kubuntu 11.04 Netbook - netbook went to screensaver - hit Shift to come back out (before password lock kicked in)  and kwin tells me it has crashed.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fa8218797a0 (LWP 1617))]

Thread 3 (Thread 0x7fa80626a700 (LWP 1626)):
#0  0x00007fa8210c3143 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fa81d4a132c in qt_safe_select (nfds=17, fdread=0x34704b0, fdwrite=0x3470748, fdexcept=0x34709e0, orig_timeout=<value optimized out>) at kernel/qcore_unix.cpp:82
#2  0x00007fa81d4a63d0 in QEventDispatcherUNIXPrivate::doSelect (this=0x34702f0, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:219
#3  0x00007fa81d4a704a in QEventDispatcherUNIX::processEvents (this=0x34e2fb0, flags=...) at kernel/qeventdispatcher_unix.cpp:919
#4  0x00007fa81d478882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fa81d478abc in QEventLoop::exec (this=0x7fa806269db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fa81d38f924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007fa81d45ac2f in QInotifyFileSystemWatcherEngine::run (this=0x33588c0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fa81d392175 in QThreadPrivate::start (arg=0x33588c0) at thread/qthread_unix.cpp:320
#9  0x00007fa817a81d8c in start_thread (arg=0x7fa80626a700) at pthread_create.c:304
#10 0x00007fa8210cb04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fa805a69700 (LWP 1627)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fa81ff2a2a2 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fa820243180) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fa81ff2a2d9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7fa820251254) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fa817a81d8c in start_thread (arg=0x7fa805a69700) at pthread_create.c:304
#4  0x00007fa8210cb04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fa8218797a0 (LWP 1617)):
[KCrash Handler]
#6  0x00007fa808fb8403 in i915_emit_state (intel=0x20b2f40) at i915_vtbl.c:312
#7  0x00007fa808c6c565 in run_render (ctx=0x20b2f40, stage=<value optimized out>) at tnl/t_vb_render.c:276
#8  0x00007fa808c60bea in _tnl_run_pipeline (ctx=0x20b2f40) at tnl/t_pipeline.c:153
#9  0x00007fa808fe1838 in intelRunPipeline (ctx=0x20b2f40) at intel_tris.c:1075
#10 0x00007fa808c61abc in _tnl_draw_prims (ctx=<value optimized out>, arrays=0x20ff758, prim=0x20fde74, nr_prims=1, ib=0x0, min_index=<value optimized out>, max_index=3) at tnl/t_draw.c:518
#11 0x00007fa808c61de6 in _tnl_vbo_draw_prims (ctx=0x20b2f40, arrays=0x20ff758, prim=0x20fde74, nr_prims=1, ib=0x0, index_bounds_valid=<value optimized out>, min_index=0, max_index=3) at tnl/t_draw.c:424
#12 0x00007fa808c57100 in vbo_exec_vtx_flush (exec=0x20fdb90, unmap=1 '\001') at vbo/vbo_exec_draw.c:381
#13 0x00007fa808c54e2c in vbo_exec_FlushVertices_internal (ctx=<value optimized out>, unmap=<value optimized out>) at vbo/vbo_exec_api.c:911
#14 0x00007fa808c5502a in vbo_exec_FlushVertices (ctx=<value optimized out>, flags=1) at vbo/vbo_exec_api.c:945
#15 0x00007fa808b920ce in _mesa_PopAttrib () at main/attrib.c:858
#16 0x00007fa81f515ac5 in KWin::PaintClipper::Iterator::~Iterator (this=0x7fffcdfcdbe0, __in_chrg=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:873
#17 0x00007fa81f51ed62 in KWin::renderGLGeometry (region=..., count=4, vertices=0x1ffd170, texture=0x32febc0, color=0x0, dim=2, stride=0) at ../../../kwin/lib/kwinglutils.cpp:180
#18 0x00007fa821444c98 in KWin::SceneOpenGL::Window::renderQuads (this=<value optimized out>, region=..., quads=...) at ../../kwin/scene_opengl.cpp:1678
#19 0x00007fa82144c613 in KWin::SceneOpenGL::Window::performPaint (this=0x37a1230, mask=9, region=..., data=...) at ../../kwin/scene_opengl.cpp:1559
#20 0x00007fa821437419 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
#21 0x00007fa821454b76 in KWin::EffectsHandlerImpl::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:247
#22 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#23 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#24 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#25 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#26 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#27 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#28 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#29 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#30 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#31 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#32 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#33 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#34 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#35 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#36 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#37 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#38 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#39 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#40 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#41 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#42 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#43 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#44 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#45 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#46 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#47 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#48 0x00007fa81f5148a8 in KWin::Effect::drawWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:262
#49 0x00007fa821454c07 in KWin::EffectsHandlerImpl::drawWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:243
#50 0x00007fa821436cd8 in KWin::Scene::finalPaintWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../kwin/scene.cpp:323
#51 0x00007fa821454d06 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:204
#52 0x00007fa81f5149a8 in KWin::Effect::paintWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:242
#53 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#54 0x00007fa807fad4cd in KWin::PresentWindowsEffect::paintWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:379
#55 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#56 0x00007fa807fcd599 in KWin::TaskbarThumbnailEffect::paintWindow (this=0x328b230, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../../kwin/effects/taskbarthumbnail/taskbarthumbnail.cpp:70
#57 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#58 0x00007fa807fa3449 in KWin::HighlightWindowEffect::paintWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=..., data=...) at ../../../kwin/effects/highlightwindow/highlightwindow.cpp:104
#59 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#60 0x00007fa807f9b153 in KWin::DialogParentEffect::paintWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/effects/dialogparent/dialogparent.cpp:62
#61 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#62 0x00007fa807f94668 in KWin::DesktopGridEffect::paintWindow (this=0x3222c40, w=0x1fcd080, mask=9, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:400
#63 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#64 0x00007fa807f88831 in KWin::BoxSwitchEffect::paintWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:245
#65 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#66 0x00007fa807fe2ea7 in KWin::CubeEffect::paintWindow (this=0x32e4ab0, w=0x1fcd080, mask=9, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:1581
#67 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#68 0x00007fa81f5149a8 in KWin::Effect::paintWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:242
#69 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#70 0x00007fa807fea5e1 in KWin::CubeSlideEffect::paintWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=..., data=...) at ../../../kwin/effects/cube/cubeslide.cpp:412
#71 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#72 0x00007fa807fd76eb in KWin::CoverSwitchEffect::paintWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:504
#73 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#74 0x00007fa808006dda in KWin::WobblyWindowsEffect::paintWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=..., data=<value optimized out>) at ../../../kwin/effects/wobblywindows/wobblywindows.cpp:366
#75 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#76 0x00007fa807fcb7ff in KWin::SlidingPopupsEffect::paintWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../../kwin/effects/slidingpopups/slidingpopups.cpp:127
#77 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#78 0x00007fa81f5149a8 in KWin::Effect::paintWindow (this=<value optimized out>, w=0x1fcd080, mask=9, region=<value optimized out>, data=<value optimized out>) at ../../../kwin/lib/kwineffects.cpp:242
#79 0x00007fa821454d97 in KWin::EffectsHandlerImpl::paintWindow (this=0x3076150, w=0x1fcd080, mask=9, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:200
#80 0x00007fa821437617 in KWin::Scene::paintWindow (this=<value optimized out>, w=0x37a1230, mask=9, region=..., quads=<value optimized out>) at ../../kwin/scene.cpp:317
#81 0x00007fa821437f6a in KWin::Scene::paintSimpleScreen (this=0x20aca70, orig_mask=8, region=...) at ../../kwin/scene.cpp:288
#82 0x00007fa821436c21 in KWin::Scene::finalPaintScreen (this=0x20aca70, mask=8, region=<value optimized out>, data=<value optimized out>) at ../../kwin/scene.cpp:180
#83 0x00007fa821454f19 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:173
#84 0x00007fa807fff5a6 in KWin::StartupFeedbackEffect::paintScreen (this=0x32619d0, mask=8, region=<value optimized out>, data=...) at ../../../kwin/effects/startupfeedback/startupfeedback.cpp:166
#85 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#86 0x00007fa807faafbd in KWin::PresentWindowsEffect::paintScreen (this=0x324a680, mask=8, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:205
#87 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#88 0x00007fa81f514a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#89 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#90 0x00007fa81f514a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#91 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#92 0x00007fa81f514a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#93 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#94 0x00007fa807f92365 in KWin::DesktopGridEffect::paintScreen (this=0x3222c40, mask=8, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:155
#95 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#96 0x00007fa807f8bbad in KWin::BoxSwitchEffect::paintScreen (this=0x32c1500, mask=8, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:143
#97 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#98 0x00007fa807fe2256 in KWin::CubeEffect::paintScreen (this=<value optimized out>, mask=8, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:698
#99 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#100 0x00007fa81f514a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#101 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#102 0x00007fa807febfa4 in KWin::CubeSlideEffect::paintScreen (this=<value optimized out>, mask=8, region=..., data=...) at ../../../kwin/effects/cube/cubeslide.cpp:111
#103 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#104 0x00007fa807fdad86 in KWin::CoverSwitchEffect::paintScreen (this=0x325ba10, mask=8, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:126
#105 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#106 0x00007fa81f514a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#107 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#108 0x00007fa81f514a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#109 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#110 0x00007fa807fd139b in KWin::ZoomEffect::paintScreen (this=0x32e7690, mask=8, region=..., data=...) at ../../../kwin/effects/zoom/zoom.cpp:341
#111 0x00007fa821454fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3076150, mask=8, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#112 0x00007fa8214390af in KWin::Scene::paintScreen (this=0x20aca70, mask=0x7fffcdfd18ac, region=0x7fffcdfd1970) at ../../kwin/scene.cpp:137
#113 0x00007fa82144cef3 in KWin::SceneOpenGL::paint (this=0x20aca70, damage=..., toplevels=<value optimized out>) at ../../kwin/scene_opengl.cpp:772
#114 0x00007fa821434396 in KWin::Workspace::performCompositing (this=0x23d1040) at ../../kwin/composite.cpp:448
#115 0x00007fa81d48d1c9 in QObject::event (this=0x23d1040, e=<value optimized out>) at kernel/qobject.cpp:1190
#116 0x00007fa81c8369f4 in QApplicationPrivate::notify_helper (this=0x1f93570, receiver=0x23d1040, e=0x7fffcdfd2100) at kernel/qapplication.cpp:4462
#117 0x00007fa81c83b3ba in QApplication::notify (this=<value optimized out>, receiver=0x23d1040, e=0x7fffcdfd2100) at kernel/qapplication.cpp:4341
#118 0x00007fa820bc6866 in KApplication::notify (this=0x7fffcdfd2500, receiver=0x23d1040, event=0x7fffcdfd2100) at ../../kdeui/kernel/kapplication.cpp:311
#119 0x00007fa81d47949c in QCoreApplication::notifyInternal (this=0x7fffcdfd2500, receiver=0x23d1040, event=0x7fffcdfd2100) at kernel/qcoreapplication.cpp:731
#120 0x00007fa81d4a6f12 in sendEvent (this=0x1f95260) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#121 QTimerInfoList::activateTimers (this=0x1f95260) at kernel/qeventdispatcher_unix.cpp:604
#122 0x00007fa81d4a705b in QEventDispatcherUNIX::processEvents (this=0x1f37340, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#123 0x00007fa81c8e12ec in QEventDispatcherX11::processEvents (this=0x1f37340, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#124 0x00007fa81d478882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#125 0x00007fa81d478abc in QEventLoop::exec (this=0x7fffcdfd2440, flags=...) at kernel/qeventloop.cpp:201
#126 0x00007fa81d47cecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#127 0x00007fa8213d21ec in kdemain (argc=<value optimized out>, argv=0x7fffcdfd2b98) at ../../kwin/main.cpp:542
#128 0x00007fa821003eff in __libc_start_main (main=0x400740 <main(int, char**)>, argc=3, ubp_av=0x7fffcdfd2b98, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffcdfd2b88) at libc-start.c:226
#129 0x0000000000400669 in _start ()

This bug may be a duplicate of or related to bug 267550.

Possible duplicates by query: bug 278360, bug 277892, bug 275473, bug 274042, bug 273188.

Reported using DrKonqi