#0  0x00007fca87ba5ead in nanosleep () from /usr/lib/libc.so.6
#1  0x00007fca862aa1ad in ?? () from /usr/lib/libQt5Core.so.5
#2  0x00007fca861f49d8 in QThread::msleep(unsigned long) () from /usr/lib/libQt5Core.so.5
#3  0x00007fca86306340 in QLockFile::tryLock(int) () from /usr/lib/libQt5Core.so.5
#4  0x00007fca7fdf3989 in ?? () from /usr/lib/libKF5ConfigCore.so.5
#5  0x00007fca7fdd5c56 in KConfig::sync() () from /usr/lib/libKF5ConfigCore.so.5
#6  0x00007fca84e0ff13 in ?? () from /usr/lib/libKF5Plasma.so.5
#7  0x00007fca84e18445 in ?? () from /usr/lib/libKF5Plasma.so.5
#8  0x00007fca8640f339 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#9  0x00007fca8641d0a8 in QTimer::timerEvent(QTimerEvent*) () from /usr/lib/libQt5Core.so.5
#10 0x00007fca86410473 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#11 0x00007fca86cbdd8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#12 0x00007fca86cc3370 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#13 0x00007fca863dfa9b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#14 0x00007fca86435f6d in QTimerInfoList::activateTimers() () from /usr/lib/libQt5Core.so.5
#15 0x00007fca86434703 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#16 0x00007fca720bb4ad in ?? () from /usr/lib/qt/plugins/platforms/libqxcb.so
#17 0x00007fca863dd532 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#18 0x00007fca863e4f0c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#19 0x00007fca87e95adb in kdemain () from /usr/lib/libkdeinit5_kwin_x11.so
#20 0x00007fca87b0e800 in __libc_start_main () from /usr/lib/libc.so.6
#21 0x00000000004007b9 in _start ()
A debugging session is active.

	Inferior 1 [process 775] will be detached.

Quit anyway? (y or n) Detaching from program: /usr/bin/kwin_x11, process 775