Application: kwin_x11 (5.8.3)

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.4.36-8-default x86_64
Distribution: "openSUSE Leap 42.2"

-- Information about the crash:
- What I was doing when the application crashed:
Emptied junk folder in Thunderbird by right-clicking folder using empty dialog.
(Had several crashes before e.g. after software installation / updating, on rebooting)

- Unusual behavior I noticed:
Screen flickered and empy dialog jumped to upper left corner of screen

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f01989bf940 (LWP 2610))]

Thread 5 (Thread 0x7f0166ffc700 (LWP 7395)):
#0  0x00007f019811bb03 in select () at /lib64/libc.so.6
#1  0x00007f01957d7849 in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () at /usr/lib64/libQt5Core.so.5
#2  0x00007f01957d90c3 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () at /usr/lib64/libQt5Core.so.5
#3  0x00007f01957d9527 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f0195788fdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f01955c3f1a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f019015d9b8 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f01955c89e9 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f01983e9734 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f0198122d3d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f0166001700 (LWP 2704)):
#0  0x00007f01983ee0af in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f019474c93b in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007f019474c969 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007f01983e9734 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f0198122d3d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f0175938700 (LWP 2694)):
#0  0x00007ffc447bcaf0 in clock_gettime ()
#1  0x00007f019812f806 in clock_gettime () at /lib64/libc.so.6
#2  0x00007f0195673826 in  () at /usr/lib64/libQt5Core.so.5
#3  0x00007f01957d9989 in QTimerInfoList::updateCurrentTime() () at /usr/lib64/libQt5Core.so.5
#4  0x00007f01957d9f05 in QTimerInfoList::timerWait(timespec&) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f01957d958a in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f0195788fdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f01955c3f1a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f019015d9b8 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f01955c89e9 in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f01983e9734 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f0198122d3d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f0177650700 (LWP 2658)):
#0  0x00007f019811bb03 in select () at /lib64/libc.so.6
#1  0x00007f01957d7849 in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () at /usr/lib64/libQt5Core.so.5
#2  0x00007f01957d90c3 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () at /usr/lib64/libQt5Core.so.5
#3  0x00007f01957d9527 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f0195788fdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f01955c3f1a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f018f3301d5 in  () at /usr/lib64/libQt5DBus.so.5
#7  0x00007f01955c89e9 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f01983e9734 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f0198122d3d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f01989bf940 (LWP 2610)):
[KCrash Handler]
#6  0x00007f0190149dd0 in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f019014b24a in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f01901542f6 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f01900e293b in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () at /usr/lib64/libQt5Qml.so.5
#10 0x00007f01900e29f7 in QQmlComponentPrivate::completeCreate() () at /usr/lib64/libQt5Qml.so.5
#11 0x00007f01900e2880 in QQmlComponent::create(QQmlContext*) () at /usr/lib64/libQt5Qml.so.5
#12 0x00007f01759577cf in  () at /usr/lib64/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#13 0x00007f0197d45047 in  () at /usr/lib64/libkwin.so.5
#14 0x00007f0197c29891 in KWin::Client::createDecoration(QRect const&) () at /usr/lib64/libkwin.so.5
#15 0x00007f0197c2a5ab in KWin::Client::updateDecoration(bool, bool) () at /usr/lib64/libkwin.so.5
#16 0x00007f0197c8bed6 in KWin::Client::manage(unsigned int, bool) () at /usr/lib64/libkwin.so.5
#17 0x00007f0197c0d994 in KWin::Workspace::createClient(unsigned int, bool) () at /usr/lib64/libkwin.so.5
#18 0x00007f0197c7a0e0 in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () at /usr/lib64/libkwin.so.5
#19 0x00007f0195788270 in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /usr/lib64/libQt5Core.so.5
#20 0x00007f017e938be4 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /usr/lib64/libQt5XcbQpa.so.5
#21 0x00007f017e93ac3b in QXcbConnection::processXcbEvents() () at /usr/lib64/libQt5XcbQpa.so.5
#22 0x00007f01957b6166 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#23 0x00007f0196495e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#24 0x00007f019649a49a in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#25 0x00007f019578afc5 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#26 0x00007f019578cdaa in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#27 0x00007f01957d94b4 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#28 0x00007f017e99c94d in  () at /usr/lib64/libQt5XcbQpa.so.5
#29 0x00007f0195788fdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#30 0x00007f0195790ec6 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#31 0x00007f019860a9cc in kdemain () at /usr/lib64/libkdeinit5_kwin_x11.so
#32 0x00007f01980596e5 in __libc_start_main () at /lib64/libc.so.6
#33 0x0000000000400809 in _start ()

Reported using DrKonqi