Application: kwin_x11 (5.10.2)

Qt Version: 5.9.0
Frameworks Version: 5.35.0
Operating System: Linux 4.11.3-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- Custom settings of the application:
The window manager didn't crash. I could hovere over application tiles and they would activate but nothing was able to be clicked. I even got tile previews for the windows but no X interaction. This all happened while I was setting up MPD with ario. I was connected to the MPD service but X stopped working after I clicked "Update database"

The crash does not seem to be reproducible.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5295386840 (LWP 1112))]

Thread 12 (Thread 0x7f525696c700 (LWP 1369)):
#0  0x00007f528df8739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f5291315ac4 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f5291315b09 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f528df81297 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f5294dda25f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f5257c90700 (LWP 1243)):
#0  0x00007f528df8739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f525eeed2fb in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#2  0x00007f525eeed037 in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#3  0x00007f528df81297 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f5294dda25f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f5258491700 (LWP 1242)):
#0  0x00007f528df8739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f525eeed2fb in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#2  0x00007f525eeed037 in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#3  0x00007f528df81297 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f5294dda25f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f5258c92700 (LWP 1241)):
#0  0x00007f528df8739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f525eeed2fb in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#2  0x00007f525eeed037 in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#3  0x00007f528df81297 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f5294dda25f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f5259493700 (LWP 1240)):
#0  0x00007f528df8739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f525eeed2fb in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#2  0x00007f525eeed037 in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#3  0x00007f528df81297 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f5294dda25f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f5259e99700 (LWP 1239)):
#0  0x00007f528df8739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f525eeed2fb in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#2  0x00007f525eeed037 in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#3  0x00007f528df81297 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f5294dda25f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f525a7db700 (LWP 1238)):
#0  0x00007f528df8739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f525eeed2fb in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#2  0x00007f525eeed037 in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#3  0x00007f528df81297 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f5294dda25f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f5271598700 (LWP 1237)):
[KCrash Handler]
#5  0x00007f5292328b08 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f52922c0c1c in QLockFile::tryLock(int) () at /usr/lib/libQt5Core.so.5
#7  0x00007f5294111b19 in  () at /usr/lib/libKF5ConfigCore.so.5
#8  0x00007f52940f4182 in KConfig::sync() () at /usr/lib/libKF5ConfigCore.so.5
#9  0x00007f5278a1a9cb in  () at /usr/lib/qt/plugins/org.kde.kwin.platforms/KWinX11Platform.so
#10 0x00007f52923c557f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#11 0x00007f5292442767 in QTimer::timeout(QTimer::QPrivateSignal) () at /usr/lib/libQt5Core.so.5
#12 0x00007f52923d2008 in QTimer::timerEvent(QTimerEvent*) () at /usr/lib/libQt5Core.so.5
#13 0x00007f52923c5e2b in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#14 0x00007f52930c146c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#15 0x00007f52930c8cf4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#16 0x00007f5292396b98 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#17 0x00007f52923edbae in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#18 0x00007f52923ebdc2 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#19 0x00007f529239521a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#20 0x00007f52921b740a in QThread::exec() () at /usr/lib/libQt5Core.so.5
#21 0x00007f52921bbcbd in  () at /usr/lib/libQt5Core.so.5
#22 0x00007f528df81297 in start_thread () at /usr/lib/libpthread.so.0
#23 0x00007f5294dda25f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f52733a9700 (LWP 1169)):
#0  0x00007f52923ebab5 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#1  0x00007f529239521a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#2  0x00007f52921b740a in QThread::exec() () at /usr/lib/libQt5Core.so.5
#3  0x00007f528cca1645 in  () at /usr/lib/libQt5Qml.so.5
#4  0x00007f52921bbcbd in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f528df81297 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f5294dda25f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f527943e700 (LWP 1131)):
#0  0x00007f5294dd0396 in ppoll () at /usr/lib/libc.so.6
#1  0x00007f52923ea471 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007f52923ebb5e in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007f529239521a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f52921b740a in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007f528be46d45 in  () at /usr/lib/libQt5DBus.so.5
#6  0x00007f52921bbcbd in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f528df81297 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f5294dda25f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f527b83f700 (LWP 1121)):
#0  0x00007f5294dd02bd in poll () at /usr/lib/libc.so.6
#1  0x00007f5293eba8e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f5293ebc679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f527c91ad49 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f52921bbcbd in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f528df81297 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f5294dda25f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f5295386840 (LWP 1112)):
#0  0x00007f528df8739d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f5293ebab57 in  () at /usr/lib/libxcb.so.1
#2  0x00007f5293ebc39f in  () at /usr/lib/libxcb.so.1
#3  0x00007f5293ebc4b2 in xcb_wait_for_reply () at /usr/lib/libxcb.so.1
#4  0x00007f52948bcf5c in KWin::Workspace::xStackingOrder() const () at /usr/lib/libkwin.so.5
#5  0x00007f5294923821 in KWin::Compositor::performCompositing() () at /usr/lib/libkwin.so.5
#6  0x00007f52923c5e2b in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#7  0x00007f52930c146c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#8  0x00007f52930c8cf4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#9  0x00007f5292396b98 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#10 0x00007f52923edbae in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#11 0x00007f52923ebdc2 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#12 0x00007f527c97d5bd in  () at /usr/lib/libQt5XcbQpa.so.5
#13 0x00007f529239521a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#14 0x00007f529239da74 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#15 0x00007f529509afd5 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so
#16 0x00007f5294d0d43a in __libc_start_main () at /usr/lib/libc.so.6
#17 0x000000000040069a in _start ()

Reported using DrKonqi