Application: kwin_x11 (5.8.5)

Qt Version: 5.7.1
Frameworks Version: 5.29.0
Operating System: Linux 4.8.17-1-MANJARO x86_64
Distribution: "Manjaro Linux"

-- Information about the crash:
- What I was doing when the application crashed:

+ Every time when I play Minecraft in full screen KWin crashed.

- Custom settings of the application:

+ Minecraft full screen setting.
+ Java (jre) version 8u121.
+ Dropbox client 16.4.30

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f080a06e840 (LWP 1326))]

Thread 6 (Thread 0x7f07d2bed700 (LWP 2024)):
#0  0x00007f0809acf02f in __libc_enable_asynccancel () at /usr/lib/libc.so.6
#1  0x00007f0809ab9533 in ppoll () at /usr/lib/libc.so.6
#2  0x00007f08071685f9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#3  0x00007f0807169efa in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f0807116d3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f0806f39063 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f0801a8ce75 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f0806f3dcf8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f0802d32454 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f0809ac27df in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f07d37fe700 (LWP 1417)):
#0  0x00007f0802d3810f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f08060ae1f4 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f08060ae239 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f0802d32454 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f0809ac27df in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f07e7125700 (LWP 1398)):
#0  0x00007f0809ab9551 in ppoll () at /usr/lib/libc.so.6
#1  0x00007f08071685f9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007f0807169efa in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007f0807116d3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f0806f39063 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007f0801a8ce75 in  () at /usr/lib/libQt5Qml.so.5
#6  0x00007f0806f3dcf8 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f0802d32454 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f0809ac27df in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f07eda01700 (LWP 1387)):
#0  0x00007f0809ab9551 in ppoll () at /usr/lib/libc.so.6
#1  0x00007f08071685f9 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007f0807169efa in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007f0807116d3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f0806f39063 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007f0800c56de5 in  () at /usr/lib/libQt5DBus.so.5
#6  0x00007f0806f3dcf8 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f0802d32454 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f0809ac27df in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f07ef923700 (LWP 1349)):
#0  0x00007f0809ab948d in poll () at /usr/lib/libc.so.6
#1  0x00007f0808bf98e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f0808bfb679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f07f03cf789 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f0806f3dcf8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f0802d32454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f0809ac27df in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f080a06e840 (LWP 1326)):
[KCrash Handler]
#6  0x00007f080714a75e in QObject::connect(QObject const*, char const*, QObject const*, char const*, Qt::ConnectionType) () at /usr/lib/libQt5Core.so.5
#7  0x00007f08060f070f in  () at /usr/lib/libQt5Script.so.5
#8  0x00007f08060f07d4 in  () at /usr/lib/libQt5Script.so.5
#9  0x00007f08060f0a52 in QScriptEngine::newQObject(QObject*, QScriptEngine::ValueOwnership, QFlags<QScriptEngine::QObjectWrapOption> const&) () at /usr/lib/libQt5Script.so.5
#10 0x00007f08096c3bbc in  () at /usr/lib/libkwin.so.5
#11 0x00007f08060f0d05 in  () at /usr/lib/libQt5Script.so.5
#12 0x00007f0806119756 in  () at /usr/lib/libQt5Script.so.5
#13 0x00007f0806121a21 in  () at /usr/lib/libQt5Script.so.5
#14 0x00007f0807144264 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#15 0x00007f08068f8fc8 in KWin::EffectsHandler::desktopPresenceChanged(KWin::EffectWindow*, int, int) () at /usr/lib/libkwineffects.so.9
#16 0x00007f08068fa981 in  () at /usr/lib/libkwineffects.so.9
#17 0x00007f0807144f29 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#18 0x00007f0807df235c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#19 0x00007f0807df9ad1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#20 0x00007f08071188e0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#21 0x00007f080711b06d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#22 0x00007f0807169d27 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#23 0x00007f07f0448ddd in  () at /usr/lib/libQt5XcbQpa.so.5
#24 0x00007f0807116d3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#25 0x00007f080711f23c in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#26 0x00007f0809d81495 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so
#27 0x00007f08099fa291 in __libc_start_main () at /usr/lib/libc.so.6
#28 0x000000000040069a in _start ()

Reported using DrKonqi