Application: kwin_x11 (5.8.3)

Qt Version: 5.7.0
Frameworks Version: 5.27.0
Operating System: Linux 4.8.6-2-default x86_64
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
Editing text file in KATE, running Konsole, requested another file to TAB BAR Open option... crash occurred on dialog box opening

- Unusual behavior I noticed:

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3ba11a2940 (LWP 2912))]

Thread 5 (Thread 0x7f3b7998b700 (LWP 3185)):
#0  0x00007f3ba0b2e751 in ppoll () at /lib64/libc.so.6
#1  0x00007f3b9e202b41 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib64/libQt5Core.so.5
#2  0x00007f3b9e204428 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#3  0x00007f3b9e1b11ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f3b9dfdf8b3 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#5  0x00007f3b9897aa75 in  () at /usr/lib64/libQt5Qml.so.5
#6  0x00007f3b9dfe4558 in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007f3b99e49454 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f3ba0b3739f in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f3b6b3c1700 (LWP 3013)):
#0  0x00007f3b99e4f10f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f3b9d16c834 in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007f3b9d16c879 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007f3b99e49454 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f3ba0b3739f in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f3b7aa0d700 (LWP 3002)):
#0  0x00007f3ba0b2e751 in ppoll () at /lib64/libc.so.6
#1  0x00007f3b9e202b41 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib64/libQt5Core.so.5
#2  0x00007f3b9e204428 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#3  0x00007f3b9e1b11ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f3b9dfdf8b3 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#5  0x00007f3b9897aa75 in  () at /usr/lib64/libQt5Qml.so.5
#6  0x00007f3b9dfe4558 in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007f3b99e49454 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f3ba0b3739f in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f3b89c9d700 (LWP 2931)):
#0  0x00007f3ba0b2e68d in poll () at /lib64/libc.so.6
#1  0x00007f3b95624876 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f3b9562498c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f3b9e20779b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f3b9e1b11ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f3b9dfdf8b3 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f3b97b533e5 in  () at /usr/lib64/libQt5DBus.so.5
#7  0x00007f3b9dfe4558 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f3b99e49454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f3ba0b3739f in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f3ba11a2940 (LWP 2912)):
[KCrash Handler]
#6  0x00007f3b98966130 in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f3b98967095 in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f3b98970d35 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f3b988fa5fe in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () at /usr/lib64/libQt5Qml.so.5
#10 0x00007f3b988fa6c7 in QQmlComponentPrivate::completeCreate() () at /usr/lib64/libQt5Qml.so.5
#11 0x00007f3b988fa530 in QQmlComponent::create(QQmlContext*) () at /usr/lib64/libQt5Qml.so.5
#12 0x00007f3b7aa2d4b7 in  () at /usr/lib64/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#13 0x00007f3ba0756ed9 in  () at /usr/lib64/libkwin.so.5
#14 0x00007f3ba0637572 in KWin::Client::createDecoration(QRect const&) () at /usr/lib64/libkwin.so.5
#15 0x00007f3ba063815d in KWin::Client::updateDecoration(bool, bool) () at /usr/lib64/libkwin.so.5
#16 0x00007f3ba0697175 in KWin::Client::manage(unsigned int, bool) () at /usr/lib64/libkwin.so.5
#17 0x00007f3ba061aa84 in KWin::Workspace::createClient(unsigned int, bool) () at /usr/lib64/libkwin.so.5
#18 0x00007f3ba0684387 in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () at /usr/lib64/libkwin.so.5
#19 0x00007f3b9e1b032f in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /usr/lib64/libQt5Core.so.5
#20 0x00007f3b88f9fdc4 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /usr/lib64/libQt5XcbQpa.so.5
#21 0x00007f3b88fa0a55 in QXcbConnection::processXcbEvents() () at /usr/lib64/libQt5XcbQpa.so.5
#22 0x00007f3b9e1dfd59 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#23 0x00007f3b9eea892c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#24 0x00007f3b9eeb00e1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#25 0x00007f3b9e1b3200 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#26 0x00007f3b9e1b598d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#27 0x00007f3b9e20426a in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#28 0x00007f3b8901754d in  () at /usr/lib64/libQt5XcbQpa.so.5
#29 0x00007f3b9e1b11ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#30 0x00007f3b9e1b995c in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#31 0x00007f3ba0df6a56 in kdemain () at /usr/lib64/libkdeinit5_kwin_x11.so
#32 0x00007f3ba0a6e291 in __libc_start_main () at /lib64/libc.so.6
#33 0x00000000004006ea in _start ()

Reported using DrKonqi