Bug 276230

Summary:	Kwin crashes while mouse cursor glides over tasks on taskbar
Product:	[Plasma] kwin	Reporter:	Larry Shurr <lshurr>
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED FIXED
Severity:	crash	CC:	gatekeeper.mail, lshurr, svelanka
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	New crash information added by DrKonqi New crash information added by DrKonqi

Description Larry Shurr 2011-06-22 03:22:57 UTC

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 2.6.38-8-generic i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed: Like I said, I was moving the mouse cursor over the task bar preparing to select a task, restoring its window.  I had not selected a task when Kwin crashed.

-- Backtrace:
Application: KWin (kwin), signal: Aborted
[Current thread is 1 (Thread 0xb6071720 (LWP 2153))]

Thread 3 (Thread 0xb20a9b70 (LWP 2162)):
#0  0x00e9bd41 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x08996dd8 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x08a64525 in updateCurrentTime (this=0xa05e020, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:339
#4  QEventDispatcherUNIXPrivate::doSelect (this=0xa05e020, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:182
#5  0x08a65326 in QEventDispatcherUNIX::processEvents (this=0xa098200, flags=...) at kernel/qeventdispatcher_unix.cpp:919
#6  0x08a34289 in QEventLoop::processEvents (this=0xb20a9280, flags=...) at kernel/qeventloop.cpp:149
#7  0x08a34522 in QEventLoop::exec (this=0xb20a9280, flags=...) at kernel/qeventloop.cpp:201
#8  0x0893e2a0 in QThread::exec (this=0xa04dba8) at thread/qthread.cpp:492
#9  0x08a15fdb in QInotifyFileSystemWatcherEngine::run (this=0xa04dba8) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x08940da2 in QThreadPrivate::start (arg=0xa04dba8) at thread/qthread_unix.cpp:320
#11 0x00659e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x0022673e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xb18a0b70 (LWP 2163)):
#0  0x00383416 in __kernel_vsyscall ()
#1  0x0065e48c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x002343fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x0113f817 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x12531c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x0113f851 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x12531c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x00659e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x0022673e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb6071720 (LWP 2153)):
[KCrash Handler]
#7  0x00383416 in __kernel_vsyscall ()
#8  0x00180e71 in raise () from /lib/i386-linux-gnu/libc.so.6
#9  0x0018434e in abort () from /lib/i386-linux-gnu/libc.so.6
#10 0x04ff20b5 in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/i386-linux-gnu/libstdc++.so.6
#11 0x04feffa5 in ?? () from /usr/lib/i386-linux-gnu/libstdc++.so.6
#12 0x04feffe2 in std::terminate() () from /usr/lib/i386-linux-gnu/libstdc++.so.6
#13 0x04ff014e in __cxa_throw () from /usr/lib/i386-linux-gnu/libstdc++.so.6
#14 0x04ff06d7 in operator new(unsigned int) () from /usr/lib/i386-linux-gnu/libstdc++.so.6
#15 0x04ff07ad in operator new[](unsigned int) () from /usr/lib/i386-linux-gnu/libstdc++.so.6
#16 0x00ebf5ac in KWin::GLShader::load (this=0x9e90ec0, vertexsource=..., fragmentsource=...) at ../../../kwin/lib/kwinglutils.cpp:767
#17 0x00ec0028 in KWin::GLShader::loadFromFiles (this=0x9e90ec0, vertexfile=..., fragmentfile=...) at ../../../kwin/lib/kwinglutils.cpp:731
#18 0x00ec05b0 in KWin::GLShader::GLShader (this=0x9e90ec0, vertexfile=..., fragmentfile=...) at ../../../kwin/lib/kwinglutils.cpp:702
#19 0x00ccf570 in KWin::LanczosShader::init (this=0xa19b7d8) at ../../kwin/lanczosfilter.cpp:588
#20 0x00ccfad8 in KWin::LanczosFilter::init (this=0x9e4c1d8) at ../../kwin/lanczosfilter.cpp:84
#21 0x00cd0199 in KWin::LanczosFilter::performPaint (this=0x9e4c1d8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/lanczosfilter.cpp:183
#22 0x00cb60b5 in KWin::Scene::finalDrawWindow (this=0x9e4bb48, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/scene.cpp:330
#23 0x00cd6db3 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:247
#24 0x00eb30dd in KWin::Effect::drawWindow (this=0x9e972f8, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#25 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#26 0x00eb30dd in KWin::Effect::drawWindow (this=0x9ec1fd8, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#27 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#28 0x00eb30dd in KWin::Effect::drawWindow (this=0x9ec7d20, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#29 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#30 0x00eb30dd in KWin::Effect::drawWindow (this=0x9e92070, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#31 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#32 0x00eb30dd in KWin::Effect::drawWindow (this=0x9eafec8, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#33 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#34 0x00eb30dd in KWin::Effect::drawWindow (this=0x9eb72f8, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#35 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#36 0x00eb30dd in KWin::Effect::drawWindow (this=0x9eb68c8, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#37 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#38 0x00eb30dd in KWin::Effect::drawWindow (this=0x9e95a60, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#39 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#40 0x00eb30dd in KWin::Effect::drawWindow (this=0x9ebe5d0, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#41 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#42 0x00eb30dd in KWin::Effect::drawWindow (this=0x9e966d8, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#43 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#44 0x00eb30dd in KWin::Effect::drawWindow (this=0x9ee9b20, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#45 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#46 0x00eb30dd in KWin::Effect::drawWindow (this=0x9eda438, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#47 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#48 0x00eb30dd in KWin::Effect::drawWindow (this=0x9edd700, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#49 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#50 0x00eb30dd in KWin::Effect::drawWindow (this=0x9ee9348, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#51 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#52 0x00eb30dd in KWin::Effect::drawWindow (this=0x9ee5ad8, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#53 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#54 0x00eb30dd in KWin::Effect::drawWindow (this=0x9eb3348, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#55 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#56 0x00eb30dd in KWin::Effect::drawWindow (this=0x9ec8b80, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#57 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#58 0x00eb30dd in KWin::Effect::drawWindow (this=0x9e97a50, w=0xa0edb60, mask=261, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:262
#59 0x00cd6e29 in KWin::EffectsHandlerImpl::drawWindow (this=0x9e25fc8, w=0xa0edb60, mask=261, region=..., data=...) at ../../kwin/effects.cpp:243
#60 0x01bf9e03 in KWin::TaskbarThumbnailEffect::paintWindow (this=0x9ec7d18, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/taskbarthumbnail/taskbarthumbnail.cpp:110
#61 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#62 0x01c2b51c in KWin::SheetEffect::paintWindow (this=0x9e92070, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/sheet/sheet.cpp:100
#63 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#64 0x01bca44e in KWin::FadeEffect::paintWindow (this=0x9eafec8, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/fade/fade.cpp:150
#65 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#66 0x01c2424c in KWin::GlideEffect::paintWindow (this=0x9eb72f8, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/glide/glide.cpp:116
#67 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#68 0x01bd2dd9 in KWin::MagicLampEffect::paintWindow (this=0x9eb68c8, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/magiclamp/magiclamp.cpp:351
#69 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#70 0x01c1dcd6 in KWin::FlipSwitchEffect::paintWindow (this=0x9e95a58, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/flipswitch/flipswitch.cpp:543
#71 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#72 0x01bbec22 in KWin::DesktopGridEffect::paintWindow (this=0x9ebe5c8, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:400
#73 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#74 0x01bcbe72 in KWin::FadeDesktopEffect::paintWindow (this=0x9e966d0, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/fadedesktop/fadedesktop.cpp:93
#75 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#76 0x01bb21d6 in KWin::BoxSwitchEffect::paintWindow (this=0x9ee9b20, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:245
#77 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#78 0x01c10b82 in KWin::CubeEffect::paintWindow (this=0x9eda430, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:1581
#79 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#80 0x01be7f0d in KWin::ScaleInEffect::paintWindow (this=0x9edd700, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/scalein/scalein.cpp:59
#81 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#82 0x01bd489c in KWin::TranslucencyEffect::paintWindow (this=0x9ee9348, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/translucency/translucency.cpp:180
#83 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#84 0x01bd555e in KWin::MinimizeAnimationEffect::paintWindow (this=0x9ee5ad8, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/minimizeanimation/minimizeanimation.cpp:103
#85 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#86 0x01c370a1 in KWin::WobblyWindowsEffect::paintWindow (this=0x9eb3348, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/wobblywindows/wobblywindows.cpp:366
#87 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#88 0x01bcf88b in KWin::LoginEffect::paintWindow (this=0x9ec8b80, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/effects/login/login.cpp:69
#89 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#90 0x00eb31dd in KWin::Effect::paintWindow (this=0x9e97a50, w=0xa157030, mask=38, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:242
#91 0x00cd6f99 in KWin::EffectsHandlerImpl::paintWindow (this=0x9e25fc8, w=0xa157030, mask=38, region=..., data=...) at ../../kwin/effects.cpp:200
#92 0x00cb6226 in KWin::Scene::paintWindow (this=0x9e4bb48, w=0xa13a9f8, mask=38, region=..., quads=...) at ../../kwin/scene.cpp:317
#93 0x00cb849f in KWin::Scene::paintGenericScreen (this=0x9e4bb48, orig_mask=32) at ../../kwin/scene.cpp:214
#94 0x00cc1a31 in KWin::SceneOpenGL::paintGenericScreen (this=0x9e4bb48, mask=32, data=...) at ../../kwin/scene_opengl.cpp:909
#95 0x00cb57c0 in KWin::Scene::finalPaintScreen (this=0x9e4bb48, mask=32, region=..., data=...) at ../../kwin/scene.cpp:178
#96 0x00cd70fc in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:173
#97 0x01c2f0e9 in KWin::StartupFeedbackEffect::paintScreen (this=0x9e972f0, mask=32, region=..., data=...) at ../../../kwin/effects/startupfeedback/startupfeedback.cpp:166
#98 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#99 0x01bd5e6f in KWin::PresentWindowsEffect::paintScreen (this=0x9ec1fd0, mask=32, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:205
#100 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#101 0x00eb3256 in KWin::Effect::paintScreen (this=0x9ec7d20, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#102 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#103 0x00eb3256 in KWin::Effect::paintScreen (this=0x9e92070, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#104 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#105 0x00eb3256 in KWin::Effect::paintScreen (this=0x9eafec8, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#106 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#107 0x00eb3256 in KWin::Effect::paintScreen (this=0x9eb72f8, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#108 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#109 0x00eb3256 in KWin::Effect::paintScreen (this=0x9eb68c8, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#110 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#111 0x01c20202 in KWin::FlipSwitchEffect::paintScreen (this=0x9e95a58, mask=32, region=..., data=...) at ../../../kwin/effects/flipswitch/flipswitch.cpp:148
#112 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#113 0x01bbc7e9 in KWin::DesktopGridEffect::paintScreen (this=0x9ebe5c8, mask=32, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:155
#114 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#115 0x00eb3256 in KWin::Effect::paintScreen (this=0x9e966d8, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#116 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#117 0x01bb5799 in KWin::BoxSwitchEffect::paintScreen (this=0x9ee9b20, mask=32, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:143
#118 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#119 0x01c0fbcc in KWin::CubeEffect::paintScreen (this=0x9eda430, mask=32, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:698
#120 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#121 0x00eb3256 in KWin::Effect::paintScreen (this=0x9edd700, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#122 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#123 0x00eb3256 in KWin::Effect::paintScreen (this=0x9ee9348, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#124 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#125 0x00eb3256 in KWin::Effect::paintScreen (this=0x9ee5ad8, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#126 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#127 0x00eb3256 in KWin::Effect::paintScreen (this=0x9eb3348, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#128 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#129 0x00eb3256 in KWin::Effect::paintScreen (this=0x9ec8b80, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#130 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#131 0x00eb3256 in KWin::Effect::paintScreen (this=0x9e97a50, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#132 0x00cd7172 in KWin::EffectsHandlerImpl::paintScreen (this=0x9e25fc8, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#133 0x00cb698c in KWin::Scene::paintScreen (this=0x9e4bb48, mask=0xbf9878b8, region=0xbf987940) at ../../kwin/scene.cpp:137
#134 0x00ccd962 in KWin::SceneOpenGL::paint (this=0x9e4bb48, damage=..., toplevels=...) at ../../kwin/scene_opengl.cpp:772
#135 0x00cb2886 in KWin::Workspace::performCompositing (this=0x9e750c8) at ../../kwin/composite.cpp:448
#136 0x08a4a214 in QObject::event (this=0x9e750c8, e=0xbf987e6c) at kernel/qobject.cpp:1190
#137 0x01dc3d24 in QApplicationPrivate::notify_helper (this=0x9d194c8, receiver=0x9e750c8, e=0xbf987e6c) at kernel/qapplication.cpp:4462
#138 0x01dc88ce in QApplication::notify (this=0xbf988184, receiver=0x9e750c8, e=0xbf987e6c) at kernel/qapplication.cpp:3862
#139 0x0084e3ca in KApplication::notify (this=0xbf988184, receiver=0x9e750c8, event=0xbf987e6c) at ../../kdeui/kernel/kapplication.cpp:311
#140 0x00c41abf in KWin::Application::notify (this=0xbf988184, o=0x9e750c8, e=0xbf987e6c) at ../../kwin/main.cpp:376
#141 0x08a350bb in QCoreApplication::notifyInternal (this=0xbf988184, receiver=0x9e750c8, event=0xbf987e6c) at kernel/qcoreapplication.cpp:731
#142 0x08a651e4 in sendEvent (this=0x9d1b348) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#143 QTimerInfoList::activateTimers (this=0x9d1b348) at kernel/qeventdispatcher_unix.cpp:604
#144 0x08a65338 in QEventDispatcherUNIX::processEvents (this=0x9cbcaa8, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#145 0x01e787ea in QEventDispatcherX11::processEvents (this=0x9cbcaa8, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#146 0x08a34289 in QEventLoop::processEvents (this=0xbf9880c4, flags=...) at kernel/qeventloop.cpp:149
#147 0x08a34522 in QEventLoop::exec (this=0xbf9880c4, flags=...) at kernel/qeventloop.cpp:201
#148 0x08a38ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#149 0x01dc18e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#150 0x00c445b2 in kdemain (argc=3, argv=0xbf988404) at ../../kwin/main.cpp:542
#151 0x080485bb in main (argc=3, argv=0xbf988404) at kwin_dummy.cpp:3

Possible duplicates by query: bug 275679, bug 265824, bug 261060, bug 260317, bug 256567.

Reported using DrKonqi

Comment 1 Larry Shurr 2011-06-22 03:32:40 UTC

Created attachment 61230 [details]
New crash information added by DrKonqi

kwin (4.6.2 (4.6.2)) on KDE Platform 4.6.2 (4.6.2) using Qt 4.7.2

- What I was doing when the application crashed: Occurred while preparing report on the incident I have identified as a duplicate.  I deliberately glided my mouse cursor over the taskbar and managed to elicit the same failure.  Unfortunately, I haven't been able to make it happen again while preparing this report.  Still hope this helps.  Unexpected Kwin exits occur everytime I use this machine since I installed Kubuntu 11.04.

-- Backtrace (Reduced):
#16 0x0027b5ac in KWin::GLShader::load (this=0x85a18d0, vertexsource=..., fragmentsource=...) at ../../../kwin/lib/kwinglutils.cpp:767
#17 0x0027c028 in KWin::GLShader::loadFromFiles (this=0x85a18d0, vertexfile=..., fragmentfile=...) at ../../../kwin/lib/kwinglutils.cpp:731
#18 0x0027c5b0 in KWin::GLShader::GLShader (this=0x85a18d0, vertexfile=..., fragmentfile=...) at ../../../kwin/lib/kwinglutils.cpp:702
#19 0x001e7570 in KWin::LanczosShader::init (this=0x85b46b8) at ../../kwin/lanczosfilter.cpp:588
#20 0x001e7ad8 in KWin::LanczosFilter::init (this=0x8242960) at ../../kwin/lanczosfilter.cpp:84

Comment 2 Martin Flöser 2011-06-22 07:03:02 UTC

This crash should be fixed with a newer version of KDE - please update.

As a workaround switch the scaling method to smooth in the advanced desktop effect settings.

Comment 3 Martin Flöser 2011-07-04 15:37:31 UTC

*** Bug 277073 has been marked as a duplicate of this bug. ***

Comment 4 Andrey Semyonov 2011-12-22 12:31:21 UTC

Created attachment 67012 [details]
New crash information added by DrKonqi

kwin (4.7.4 (4.7.4) "release 11") on KDE Platform 4.7.4 (4.7.4) "release 11" using Qt 4.7.4

- What I was doing when the application crashed:

Hover mouse over any application in task bar - kwin crashes
Alt+tab with effects enabled - kwin crashes

-- Backtrace (Reduced):
#8  0x00007fc79d74bd8a in KWin::LanczosShader::init (this=0xc0aeb0) at /usr/src/debug/kde-workspace-4.7.4/kwin/lanczosfilter.cpp:677
#9  0x00007fc79d74c25c in KWin::LanczosFilter::init (this=0x69de70) at /usr/src/debug/kde-workspace-4.7.4/kwin/lanczosfilter.cpp:76
#10 0x00007fc79d74cb40 in KWin::LanczosFilter::performPaint (this=0x69de70, w=0x7e0880, mask=261, region=..., data=...) at /usr/src/debug/kde-workspace-4.7.4/kwin/lanczosfilter.cpp:170
#11 0x00007fc79d7311b7 in KWin::Scene::finalDrawWindow (this=0xb32990, w=0x7e0880, mask=261, region=<optimized out>, data=<optimized out>) at /usr/src/debug/kde-workspace-4.7.4/kwin/scene.cpp:319
#12 0x00007fc79d750753 in KWin::EffectsHandlerImpl::drawWindow (this=0x8a9eb0, w=0x7e0880, mask=261, region=<optimized out>, data=<optimized out>) at /usr/src/debug/kde-workspace-4.7.4/kwin/effects.cpp:279

Comment 5 Thomas Lübking 2011-12-23 22:57:11 UTC

@Andrey
Different bug, a driver one (see bug #270818)

Unless you're using fglrx, try enforcing direct rendering by
"KWIN_DIRECT_GL=1"
or do NOT prevent it like
"LIBGL_ALWAYS_INDIRECT=1"

For fglrx, "kcmshell4 kwincompositing", set the scale method to smooth (3rd tab) and disable at least blur & sharpen effects