Application: kwin_x11 (5.8.6)

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.4.57-18.3-default x86_64
Distribution: "openSUSE Leap 42.2"

-- Information about the crash:
- What I was doing when the application crashed:
Clicked on Thunderbird to read a message reporting that I had just reported this same kind of bug on my desktop.  This bug occurs on both my laptop and desktop at random intervals and it's occurance cannot be predicted.  Screen blinks and crash report icon appears in task bar.  KWIN may or may not work after the crash.  Both computers are AMD processors running Leap 42.2.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9de8b99940 (LWP 2102))]

Thread 7 (Thread 0x7f9dc75ef700 (LWP 2596)):
#0  0x00007f9de82f2b03 in select () at /lib64/libc.so.6
#1  0x00007f9de59a6849 in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () at /usr/lib64/libQt5Core.so.5
#2  0x00007f9de59a80c3 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () at /usr/lib64/libQt5Core.so.5
#3  0x00007f9de59a8527 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f9de5957fdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f9de5792f1a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f9de03249c8 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f9de57979e9 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f9de85c0734 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f9de82f9d3d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f9d2b4f7700 (LWP 2233)):
#0  0x00007f9de85c50af in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f9d3291a533 in  () at /usr/lib64/dri/r600_dri.so
#2  0x00007f9d32919d57 in  () at /usr/lib64/dri/r600_dri.so
#3  0x00007f9de85c0734 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f9de82f9d3d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f9dc5b76700 (LWP 2196)):
#0  0x00007f9de85c50af in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f9de491393b in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007f9de4913969 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007f9de85c0734 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f9de82f9d3d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f9dc6bcf700 (LWP 2194)):
#0  0x00007f9de82f2b03 in select () at /lib64/libc.so.6
#1  0x00007f9de59a6849 in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () at /usr/lib64/libQt5Core.so.5
#2  0x00007f9de59a80c3 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () at /usr/lib64/libQt5Core.so.5
#3  0x00007f9de59a8527 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f9de5957fdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f9de5792f1a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f9de03249c8 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f9de57979e9 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f9de85c0734 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f9de82f9d3d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f9dcd1cf700 (LWP 2148)):
#0  0x00007f9de82f2b03 in select () at /lib64/libc.so.6
#1  0x00007f9de59a6849 in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timespec const*) () at /usr/lib64/libQt5Core.so.5
#2  0x00007f9de59a80c3 in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timespec*) () at /usr/lib64/libQt5Core.so.5
#3  0x00007f9de59a8527 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f9de5957fdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f9de5792f1a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f9ddf4f71d5 in  () at /usr/lib64/libQt5DBus.so.5
#7  0x00007f9de57979e9 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f9de85c0734 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f9de82f9d3d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f9dcf0cf700 (LWP 2122)):
#0  0x00007f9de82f149d in poll () at /lib64/libc.so.6
#1  0x00007f9de746b3e2 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f9de746cfcf in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f9dcfd91839 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f9de57979e9 in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007f9de85c0734 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f9de82f9d3d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f9de8b99940 (LWP 2102)):
[KCrash Handler]
#6  0x00007f9de0310de0 in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f9de031225a in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f9de031b306 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f9de02a994b in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () at /usr/lib64/libQt5Qml.so.5
#10 0x00007f9de02a9a07 in QQmlComponentPrivate::completeCreate() () at /usr/lib64/libQt5Qml.so.5
#11 0x00007f9de02a9890 in QQmlComponent::create(QQmlContext*) () at /usr/lib64/libQt5Qml.so.5
#12 0x00007f9dcc0867cf in  () at /usr/lib64/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#13 0x00007f9de7f15097 in  () at /usr/lib64/libkwin.so.5
#14 0x00007f9de7df9761 in KWin::Client::createDecoration(QRect const&) () at /usr/lib64/libkwin.so.5
#15 0x00007f9de7dfa47b in KWin::Client::updateDecoration(bool, bool) () at /usr/lib64/libkwin.so.5
#16 0x00007f9de7e5bdb6 in KWin::Client::manage(unsigned int, bool) () at /usr/lib64/libkwin.so.5
#17 0x00007f9de7ddd7e4 in KWin::Workspace::createClient(unsigned int, bool) () at /usr/lib64/libkwin.so.5
#18 0x00007f9de7e49fc0 in KWin::Workspace::workspaceEvent(xcb_generic_event_t*) () at /usr/lib64/libkwin.so.5
#19 0x00007f9de5957270 in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /usr/lib64/libQt5Core.so.5
#20 0x00007f9dcfd8fbe4 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /usr/lib64/libQt5XcbQpa.so.5
#21 0x00007f9dcfd91c3b in QXcbConnection::processXcbEvents() () at /usr/lib64/libQt5XcbQpa.so.5
#22 0x00007f9de5985166 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#23 0x00007f9de6664e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#24 0x00007f9de666949a in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#25 0x00007f9de5959fc5 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#26 0x00007f9de595bdaa in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#27 0x00007f9de59a84b4 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#28 0x00007f9dcfdf394d in  () at /usr/lib64/libQt5XcbQpa.so.5
#29 0x00007f9de5957fdb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#30 0x00007f9de595fec6 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#31 0x00007f9de87e19cc in kdemain () at /usr/lib64/libkdeinit5_kwin_x11.so
#32 0x00007f9de82306e5 in __libc_start_main () at /lib64/libc.so.6
#33 0x0000000000400809 in _start ()

Reported using DrKonqi