Application: kwin_x11 (5.13.5)

Qt Version: 5.11.2
Frameworks Version: 5.50.0
Operating System: Linux 4.18.12-arch1-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
flipping from screen one to 2. Using slide feature and compositing.

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 0x7f3e2e0f6840 (LWP 815))]

Thread 18 (Thread 0x7f3d5f7fe700 (LWP 25119)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f3d5ffff700 (LWP 11593)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f3d817fa700 (LWP 6963)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f3d81ffb700 (LWP 6962)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f3d827fc700 (LWP 6961)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f3d82ffd700 (LWP 6960)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f3d837fe700 (LWP 6959)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f3d83fff700 (LWP 6958)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f3e18b20700 (LWP 6957)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f3e19321700 (LWP 6956)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f3e19b22700 (LWP 6955)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f3e1a323700 (LWP 6954)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f3e1ab24700 (LWP 6953)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f3e27346700 (LWP 6952)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e1b9ce3fc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f3e1b9ce138 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f3e257d7700 (LWP 903)):
#0  0x00007f3e35ae4afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f3e369d920c in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f3e369d9229 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f3e26a18700 (LWP 871)):
#0  0x00007f3e384e4ca6 in ppoll () at /usr/lib/libc.so.6
#1  0x00007f3e370c5e9b in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007f3e370c738b in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007f3e370758cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f3e36ebeeb9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007f3e3530d859 in  () at /usr/lib/libQt5Qml.so.5
#6  0x00007f3e36ec8f65 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f3e2c81c700 (LWP 837)):
#0  0x00007f3e384e4ca6 in ppoll () at /usr/lib/libc.so.6
#1  0x00007f3e370c5e9b in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007f3e370c738b in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007f3e370758cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f3e36ebeeb9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007f3e34de4ba6 in  () at /usr/lib/libQt5DBus.so.5
#6  0x00007f3e36ec8f65 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f3e35adea9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f3e384efa43 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f3e2e0f6840 (LWP 815)):
[KCrash Handler]
#6  0x00007f3e3842bd7f in raise () at /usr/lib/libc.so.6
#7  0x00007f3e38416672 in abort () at /usr/lib/libc.so.6
#8  0x00007f3e38416548 in _nl_load_domain.cold.0 () at /usr/lib/libc.so.6
#9  0x00007f3e38424396 in  () at /usr/lib/libc.so.6
#10 0x00007f3e36c53ffe in KWin::WindowQuad::makeSubQuad(double, double, double, double) const () at /usr/lib/libkwineffects.so.11
#11 0x00007f3e1830a4cd in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#12 0x00007f3e1830a62c in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#13 0x00007f3e183137d3 in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#14 0x00007f3e18313919 in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#15 0x00007f3e38272a8c in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#16 0x00007f3e36c504bd in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#17 0x00007f3e38272a24 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#18 0x00007f3e36bea2d6 in  () at /usr/lib/libkwin4_effect_builtins.so.1
#19 0x00007f3e38272a24 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#20 0x00007f3e36b5709a in  () at /usr/lib/libkwin4_effect_builtins.so.1
#21 0x00007f3e38272a24 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#22 0x00007f3e36c504bd in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#23 0x00007f3e38272a24 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#24 0x00007f3e36c504bd in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#25 0x00007f3e38272a24 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#26 0x00007f3e36c504bd in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#27 0x00007f3e38272a24 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#28 0x00007f3e36c504bd in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#29 0x00007f3e38272a24 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#30 0x00007f3e36c504bd in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#31 0x00007f3e38272a24 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#32 0x00007f3e3825ea0d in KWin::Scene::finalPaintWindow(KWin::EffectWindowImpl*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#33 0x00007f3e382728b5 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#34 0x00007f3e36c5034d in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#35 0x00007f3e38272854 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#36 0x00007f3e36c5034d in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#37 0x00007f3e38272854 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#38 0x00007f3e36c5034d in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#39 0x00007f3e38272854 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#40 0x00007f3e36bd5330 in  () at /usr/lib/libkwin4_effect_builtins.so.1
#41 0x00007f3e38272854 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#42 0x00007f3e36ba9555 in  () at /usr/lib/libkwin4_effect_builtins.so.1
#43 0x00007f3e38272854 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#44 0x00007f3e36bb865f in  () at /usr/lib/libkwin4_effect_builtins.so.1
#45 0x00007f3e38272854 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#46 0x00007f3e36c5d1fc in KWin::AnimationEffect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#47 0x00007f3e38272854 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#48 0x00007f3e36c5d1fc in KWin::AnimationEffect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwineffects.so.11
#49 0x00007f3e38272854 in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/libkwin.so.5
#50 0x00007f3e38265013 in KWin::Scene::paintWindow(KWin::Scene::Window*, int, QRegion, KWin::WindowQuadList) () at /usr/lib/libkwin.so.5
#51 0x00007f3e38262f70 in KWin::Scene::paintGenericScreen(int, KWin::ScreenPaintData) () at /usr/lib/libkwin.so.5
#52 0x00007f3e183136be in  () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#53 0x00007f3e38264558 in KWin::Scene::finalPaintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#54 0x00007f3e38272607 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#55 0x00007f3e36bda83b in  () at /usr/lib/libkwin4_effect_builtins.so.1
#56 0x00007f3e382725ae in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#57 0x00007f3e36c502a2 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.11
#58 0x00007f3e382725ae in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#59 0x00007f3e36c502a2 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.11
#60 0x00007f3e382725ae in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#61 0x00007f3e36c502a2 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.11
#62 0x00007f3e382725ae in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#63 0x00007f3e36baa61f in  () at /usr/lib/libkwin4_effect_builtins.so.1
#64 0x00007f3e382725ae in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#65 0x00007f3e36c502a2 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.11
#66 0x00007f3e382725ae in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#67 0x00007f3e36c502a2 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.11
#68 0x00007f3e382725ae in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#69 0x00007f3e36c502a2 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwineffects.so.11
#70 0x00007f3e382725ae in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/libkwin.so.5
#71 0x00007f3e3826423b in KWin::Scene::paintScreen(int*, QRegion const&, QRegion const&, QRegion*, QRegion*, QMatrix4x4 const&, QRect const&) () at /usr/lib/libkwin.so.5
#72 0x00007f3e1830da97 in KWin::SceneOpenGL::paint(QRegion, QList<KWin::Toplevel*>) () at /usr/lib/qt/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#73 0x00007f3e38255ace in KWin::Compositor::performCompositing() () at /usr/lib/libkwin.so.5
#74 0x00007f3e370a130b in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#75 0x00007f3e379f0e14 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#76 0x00007f3e379f86e1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#77 0x00007f3e37076c39 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#78 0x00007f3e370c939a in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#79 0x00007f3e370c74de in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#80 0x00007f3e2dffd0ce in  () at /usr/lib/libQt5XcbQpa.so.5
#81 0x00007f3e370758cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#82 0x00007f3e3707dbc6 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#83 0x00007f3e385c1b26 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so
#84 0x00007f3e38418223 in __libc_start_main () at /usr/lib/libc.so.6
#85 0x000055de2dad905e in _start ()
[Inferior 1 (process 815) detached]

Reported using DrKonqi