Application: kwin_x11 (5.13.4)

Qt Version: 5.11.1
Frameworks Version: 5.49.0
Operating System: Linux 4.18.5-arch1-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- Clicked on Signal on the task bar to minimize it. Active  effects include the "magic lamp." This was the first time I saw KWin crash on this PC, though I have noticed it sometimes appears to freeze... The animation does not fully complete.

kwin and plasma-desktop versions 5.13.4-1 on Arch Linux, plasma-framework 5.49.0-1, installed from the official repositories.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin_x11), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ffaceb4f6c0 (LWP 14717))]

Thread 14 (Thread 0x7ffabc879700 (LWP 14943)):
#0  0x00007ffacad5fafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffaacd89404 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007ffaacd890f8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007ffacad59a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007ffacfdd5a43 in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7ffa86ffd700 (LWP 14941)):
#0  0x00007ffacfdcaca6 in ppoll () at /usr/lib/libc.so.6
#1  0x00007fface37337b in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007fface37486b in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007fface322dac in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fface16bf59 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007ffac9f7d0d9 in  () at /usr/lib/libQt5Qml.so.5
#6  0x00007fface176005 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007ffacad59a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007ffacfdd5a43 in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7ffa867fc700 (LWP 14735)):
#0  0x00007ffacad5fafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffacd482aac in  () at /usr/lib/libQt5Script.so.5
#2  0x00007ffacd482ac9 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007ffacad59a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007ffacfdd5a43 in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7ffa877fe700 (LWP 14733)):
#0  0x00007ffacad5fafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffaacd89404 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007ffaacd890f8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007ffacad59a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007ffacfdd5a43 in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7ffa87fff700 (LWP 14732)):
#0  0x00007ffacad5fafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffaacd89404 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007ffaacd890f8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007ffacad59a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007ffacfdd5a43 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7ffa9cdf5700 (LWP 14731)):
#0  0x00007ffacad5fafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffaacd89404 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007ffaacd890f8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007ffacad59a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007ffacfdd5a43 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7ffa9d5f6700 (LWP 14730)):
#0  0x00007ffacad5fafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffaacd89404 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007ffaacd890f8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007ffacad59a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007ffacfdd5a43 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7ffa9ddf7700 (LWP 14729)):
#0  0x00007ffacad5fafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffaacd89404 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007ffaacd890f8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007ffacad59a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007ffacfdd5a43 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7ffa9e5f8700 (LWP 14728)):
#0  0x00007ffacad5fafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffaacd89404 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007ffaacd890f8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007ffacad59a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007ffacfdd5a43 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7ffa9edf9700 (LWP 14727)):
#0  0x00007ffacad5fafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffaacd89404 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007ffaacd890f8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007ffacad59a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007ffacfdd5a43 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7ffa9f741700 (LWP 14726)):
#0  0x00007ffacad5fafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffaacd89404 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007ffaacd890f8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007ffacad59a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007ffacfdd5a43 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7ffaafce5700 (LWP 14724)):
#0  0x00007ffacfdcaca6 in ppoll () at /usr/lib/libc.so.6
#1  0x00007fface37337b in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007fface37486b in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007fface322dac in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fface16bf59 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007ffac9f7d0d9 in  () at /usr/lib/libQt5Qml.so.5
#6  0x00007fface176005 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007ffacad59a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007ffacfdd5a43 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7ffabdef9700 (LWP 14720)):
#0  0x00007ffacfdcaca6 in ppoll () at /usr/lib/libc.so.6
#1  0x00007fface37337b in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007fface37486b in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007fface322dac in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fface16bf59 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007ffac9a46ba6 in  () at /usr/lib/libQt5DBus.so.5
#6  0x00007fface176005 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007ffacad59a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007ffacfdd5a43 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7ffaceb4f6c0 (LWP 14717)):
[KCrash Handler]
#6  0x00007ffacfd11d7f in raise () at /usr/lib/libc.so.6
#7  0x00007ffacfcfc672 in abort () at /usr/lib/libc.so.6
#8  0x00007fface1327fc in  () at /usr/lib/libQt5Core.so.5
#9  0x00007ffacdcfdd4a in KWin::WindowQuad::makeSubQuad(double, double, double, double) const () at /usr/lib/libkwineffects.so.11
#10 0x00007ffaae88ca6d in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#11 0x00007ffaae88cbcc in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#12 0x00007ffaae895d73 in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#13 0x00007ffaae895eb9 in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#14 0x00007ffacf953d2c in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#15 0x00007ffacdcfa49d in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#16 0x00007ffacf953cc4 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#17 0x00007ffacda8f7b6 in  () at /usr/lib/libkwin4_effect_builtins.so.1
#18 0x00007ffacf953cc4 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#19 0x00007ffacd9fc57a in  () at /usr/lib/libkwin4_effect_builtins.so.1
#20 0x00007ffacf953cc4 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#21 0x00007ffacdcfa49d in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#22 0x00007ffacf953cc4 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#23 0x00007ffacdcfa49d in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#24 0x00007ffacf953cc4 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#25 0x00007ffacf93fcad in KWin::Scene::finalPaintWindow(KWin::EffectWindowImpl*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#26 0x00007ffacf953b55 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#27 0x00007ffacdcfa32d in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#28 0x00007ffacf953af4 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#29 0x00007ffacdcfa32d in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#30 0x00007ffacf953af4 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#31 0x00007ffacdcfa32d in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#32 0x00007ffacf953af4 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#33 0x00007ffacda23452 in  () at /usr/lib/libkwin4_effect_builtins.so.1
#34 0x00007ffacf953af4 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#35 0x00007ffacda34142 in  () at /usr/lib/libkwin4_effect_builtins.so.1
#36 0x00007ffacf953af4 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#37 0x00007ffacf9462b3 in KWin::Scene::paintWindow(KWin::Scene::Window*, int, QRegion, KWin::WindowQuadList) () at /usr/lib/libkwin.so.5
#38 0x00007ffacf944210 in KWin::Scene::paintGenericScreen(int, KWin::ScreenPaintData) () at /usr/lib/libkwin.so.5
#39 0x00007ffaae895c5e in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#40 0x00007ffacf9457f8 in KWin::Scene::finalPaintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#41 0x00007ffacf9538a7 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#42 0x00007ffacda7fd1b in  () at /usr/lib/libkwin4_effect_builtins.so.1
#43 0x00007ffacf95384e in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#44 0x00007ffacdcfa282 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.11
#45 0x00007ffacf95384e in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#46 0x00007ffacdcfa282 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.11
#47 0x00007ffacf95384e in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#48 0x00007ffacda2282a in  () at /usr/lib/libkwin4_effect_builtins.so.1
#49 0x00007ffacf95384e in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#50 0x00007ffacdcfa282 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.11
#51 0x00007ffacf95384e in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#52 0x00007ffacf9454db in KWin::Scene::paintScreen(int*, QRegion const&, QRegion const&, QRegion*, QRegion*, QMatrix4x4 const&, QRect const&) () at /usr/lib/libkwin.so.5
#53 0x00007ffaae890037 in KWin::SceneOpenGL::paint(QRegion, QList<KWin::Toplevel*>) () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#54 0x00007ffacf936d6e in KWin::Compositor::performCompositing() () at /usr/lib/libkwin.so.5
#55 0x00007fface34e7eb in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#56 0x00007ffaceca8e14 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#57 0x00007ffacecb06e1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#58 0x00007fface324119 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#59 0x00007fface37687a in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#60 0x00007fface3749be in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#61 0x00007ffac01795ce in  () at /usr/lib/libQt5XcbQpa.so.5
#62 0x00007fface322dac in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#63 0x00007fface32b0a6 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#64 0x00007ffacfeaab56 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so
#65 0x00007ffacfcfe223 in __libc_start_main () at /usr/lib/libc.so.6
#66 0x000055858923e75a in _start ()

Reported using DrKonqi