Application: kwin_x11 (5.15.3)

Qt Version: 5.12.2
Frameworks Version: 5.56.0
Operating System: Linux 5.0.5-arch1-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
My system is configured to trigger desktop grid effect when I move cursor to upper right corner. Kwin crashes randomly when I try to trigger such effect.

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin_x11), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f94fe6b0880 (LWP 4140))]

Thread 8 (Thread 0x7f94fc85e700 (LWP 5639)):
#0  0x00007f95046d6afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f95056edc4c in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007f95056edd3a in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007f950420e91d in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f950420eb8c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f95056e796c in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f95046d0a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f9506d89b23 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f94e2739700 (LWP 5638)):
#0  0x00007f95056f3686 in QArrayData::allocate(unsigned long, unsigned long, unsigned long, QFlags<QArrayData::AllocationOption>) () at /usr/lib/libQt5Core.so.5
#1  0x00007f95058f71d5 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#2  0x00007f95058a2a8c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007f95056e6569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#4  0x00007f9503e8c109 in  () at /usr/lib/libQt5Qml.so.5
#5  0x00007f95056e796c in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f95046d0a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f9506d89b23 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f94e1f38700 (LWP 4275)):
#0  0x00007f95046d6afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f95051dc28c in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f95051dc2a9 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f95046d0a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f9506d89b23 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f94e3fff700 (LWP 4273)):
#0  0x00007f95046d6afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f94f4a07214 in  () at /usr/lib/dri/i965_dri.so
#2  0x00007f94f4a06f38 in  () at /usr/lib/dri/i965_dri.so
#3  0x00007f95046d0a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f9506d89b23 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f94f7247700 (LWP 4270)):
#0  0x00007f9506d7ed16 in ppoll () at /usr/lib/libc.so.6
#1  0x00007f95058f5b5b in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007f95058f703b in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007f95058a2a8c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f95056e6569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007f9503e8c109 in  () at /usr/lib/libQt5Qml.so.5
#6  0x00007f95056e796c in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f95046d0a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f9506d89b23 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f94fd0ae700 (LWP 4257)):
#0  0x00007f9506d7ed16 in ppoll () at /usr/lib/libc.so.6
#1  0x00007f95058f5b5b in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007f95058f703b in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007f95058a2a8c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f95056e6569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007f95038efba6 in  () at /usr/lib/libQt5DBus.so.5
#6  0x00007f95056e796c in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f95046d0a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f9506d89b23 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f94fdf54700 (LWP 4246)):
#0  0x00007f9506d7ec21 in poll () at /usr/lib/libc.so.6
#1  0x00007f950560b630 in  () at /usr/lib/libxcb.so.1
#2  0x00007f950560d2db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f94fe264989 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f95056e796c in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f95046d0a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f9506d89b23 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f94fe6b0880 (LWP 4140)):
[KCrash Handler]
#6  0x00007f9506cc5d7f in raise () at /usr/lib/libc.so.6
#7  0x00007f9506cb0672 in abort () at /usr/lib/libc.so.6
#8  0x00007f95056ad7fc in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f950544e12a in KWin::WindowQuad::makeSubQuad(double, double, double, double) const () at /usr/lib/libkwineffects.so.12
#10 0x00007f94f5fe348d in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#11 0x00007f94f5fe35e8 in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#12 0x00007f94f5feb253 in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#13 0x00007f94f5feb399 in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#14 0x00007f9506af465c in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#15 0x00007f950544d51d in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.12
#16 0x00007f9506af45f4 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#17 0x00007f95053ea2c6 in  () at /usr/lib/libkwin4_effect_builtins.so.1
#18 0x00007f9506af45f4 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#19 0x00007f9505359ffa in  () at /usr/lib/libkwin4_effect_builtins.so.1
#20 0x00007f9506af45f4 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#21 0x00007f950544d51d in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.12
#22 0x00007f9506af45f4 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#23 0x00007f950544d51d in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.12
#24 0x00007f9506af45f4 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#25 0x00007f9506adeabd in KWin::Scene::finalPaintWindow(KWin::EffectWindowImpl*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#26 0x00007f9506af4485 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#27 0x00007f950544d3ad in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.12
#28 0x00007f9506af4424 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#29 0x00007f950544d3ad in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.12
#30 0x00007f9506af4424 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#31 0x00007f950544d3ad in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.12
#32 0x00007f9506af4424 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#33 0x00007f95053d9233 in  () at /usr/lib/libkwin4_effect_builtins.so.1
#34 0x00007f9506af4424 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#35 0x00007f9505380f57 in  () at /usr/lib/libkwin4_effect_builtins.so.1
#36 0x00007f9506af4424 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#37 0x00007f9506ae5286 in KWin::Scene::paintWindow(KWin::Scene::Window*, int, QRegion, KWin::WindowQuadList) () at /usr/lib/libkwin.so.5
#38 0x00007f9506ae30fe in KWin::Scene::paintGenericScreen(int, KWin::ScreenPaintData) () at /usr/lib/libkwin.so.5
#39 0x00007f94f5feb13e in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#40 0x00007f9506ae4728 in KWin::Scene::finalPaintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#41 0x00007f9506af41d7 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#42 0x00007f95053ddb1b in  () at /usr/lib/libkwin4_effect_builtins.so.1
#43 0x00007f9506af417e in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#44 0x00007f950544d302 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.12
#45 0x00007f9506af417e in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#46 0x00007f950544d302 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.12
#47 0x00007f9506af417e in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#48 0x00007f950544d302 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.12
#49 0x00007f9506af417e in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#50 0x00007f95053802da in  () at /usr/lib/libkwin4_effect_builtins.so.1
#51 0x00007f9506af417e in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#52 0x00007f9506ae440b in KWin::Scene::paintScreen(int*, QRegion const&, QRegion const&, QRegion*, QRegion*, QMatrix4x4 const&, QRect const&) () at /usr/lib/libkwin.so.5
#53 0x00007f94f5fe73f7 in KWin::SceneOpenGL::paint(QRegion, QList<KWin::Toplevel*>) () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#54 0x00007f9506ad5a1e in KWin::Compositor::performCompositing() () at /usr/lib/libkwin.so.5
#55 0x00007f95058cf0bb in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#56 0x00007f950626ee24 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#57 0x00007f95062765f1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#58 0x00007f95058a3df9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#59 0x00007f95058f9045 in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#60 0x00007f95058f718e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#61 0x00007f94fe265d5f in  () at /usr/lib/libQt5XcbQpa.so.5
#62 0x00007f95058a2a8c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#63 0x00007f95058aade6 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#64 0x00007f9506e5bb26 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so
#65 0x00007f9506cb2223 in __libc_start_main () at /usr/lib/libc.so.6
#66 0x0000556e31be305e in _start ()
[Inferior 1 (process 4140) detached]

Reported using DrKonqi