Application: kwin_x11 (5.8.4)

Qt Version: 5.7.0
Frameworks Version: 5.28.0
Operating System: Linux 4.4.33-1-MANJARO x86_64
Distribution: "Manjaro Linux"

-- Information about the crash:
- What I was doing when the application crashed:
Closed mpv media player that was in fullscreen mode, I often have to run kwin_x11 to restart the manager

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe855213840 (LWP 7881))]

Thread 5 (Thread 0x7fe812715700 (LWP 7898)):
#0  0x00007fe84deeb10f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fe851241ac4 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007fe851241b09 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007fe84dee5454 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fe854c577df in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fe81b145700 (LWP 7895)):
#0  0x00007fe854c4e551 in ppoll () at /usr/lib/libc.so.6
#1  0x00007fe8522fbac9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007fe8522fd3b8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007fe8522aa23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fe8520cd0f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007fe84cc432d5 in  () at /usr/lib/libQt5Qml.so.5
#6  0x00007fe8520d1d78 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fe84dee5454 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fe854c577df in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fe82fa76700 (LWP 7886)):
#0  0x00007fe854c4e551 in ppoll () at /usr/lib/libc.so.6
#1  0x00007fe8522fbac9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007fe8522fd3b8 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007fe8522aa23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fe8520cd0f3 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007fe84be0de55 in  () at /usr/lib/libQt5DBus.so.5
#6  0x00007fe8520d1d78 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fe84dee5454 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fe854c577df in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fe83aba2700 (LWP 7885)):
#0  0x00007fe854c4e48d in poll () at /usr/lib/libc.so.6
#1  0x00007fe853d8e8e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007fe853d90679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fe83b64e449 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fe8520d1d78 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fe84dee5454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fe854c577df in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fe855213840 (LWP 7881)):
[KCrash Handler]
#6  0x00007fe84cbda254 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007fe84cbd7eb2 in QQmlMetaType::qmlSingletonTypes() () at /usr/lib/libQt5Qml.so.5
#8  0x00007fe84cbaf2d0 in QQmlEngine::~QQmlEngine() () at /usr/lib/libQt5Qml.so.5
#9  0x00007fe84cbaf449 in QQmlEngine::~QQmlEngine() () at /usr/lib/libQt5Qml.so.5
#10 0x00007fe854ba4990 in __run_exit_handlers () at /usr/lib/libc.so.6
#11 0x00007fe854ba49ea in  () at /usr/lib/libc.so.6
#12 0x00007fe854c54f95 in  () at /usr/lib/libc.so.6
#13 0x00007fe854c550b7 in  () at /usr/lib/libc.so.6
#14 0x00007fe84d7da7e3 in  () at /usr/lib/libepoxy.so.0
#15 0x00007fe84d80063d in  () at /usr/lib/libepoxy.so.0
#16 0x00007fe851577e20 in  () at /usr/lib/libkwin4_effect_builtins.so.1
#17 0x00007fe851577ee9 in  () at /usr/lib/libkwin4_effect_builtins.so.1
#18 0x00007fe85481e501 in KWin::EffectsHandlerImpl::unloadAllEffects() () at /usr/lib/libkwin.so.5
#19 0x00007fe85481e68c in KWin::EffectsHandlerImpl::~EffectsHandlerImpl() () at /usr/lib/libkwin.so.5
#20 0x00007fe85481e7b9 in KWin::EffectsHandlerImpl::~EffectsHandlerImpl() () at /usr/lib/libkwin.so.5
#21 0x00007fe8547dba09 in KWin::Compositor::finish() () at /usr/lib/libkwin.so.5
#22 0x00007fe8547dc90c in KWin::Compositor::suspend(KWin::Compositor::SuspendReason) () at /usr/lib/libkwin.so.5
#23 0x00007fe8522d84b9 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#24 0x00007fe852f8be0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#25 0x00007fe852f93581 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#26 0x00007fe8522abde0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#27 0x00007fe8522ae56d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#28 0x00007fe8522fd1fa in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#29 0x00007fe83b6c717d in  () at /usr/lib/libQt5XcbQpa.so.5
#30 0x00007fe8522aa23a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#31 0x00007fe8522b273c in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#32 0x00007fe854f16495 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so
#33 0x00007fe854b8f291 in __libc_start_main () at /usr/lib/libc.so.6
#34 0x000000000040069a in _start ()

Reported using DrKonqi