#0  0x00007f168350eead in nanosleep () from /usr/lib/libc.so.6
#1  0x00007f1681c131ad in ?? () from /usr/lib/libQt5Core.so.5
#2  0x00007f1681b5d9d8 in QThread::msleep(unsigned long) () from /usr/lib/libQt5Core.so.5
#3  0x00007f1681c6f340 in QLockFile::tryLock(int) () from /usr/lib/libQt5Core.so.5
#4  0x00007f167b75c989 in ?? () from /usr/lib/libKF5ConfigCore.so.5
#5  0x00007f167b73ec56 in KConfig::sync() () from /usr/lib/libKF5ConfigCore.so.5
#6  0x00007f1680778f13 in ?? () from /usr/lib/libKF5Plasma.so.5
#7  0x00007f1680781445 in ?? () from /usr/lib/libKF5Plasma.so.5
#8  0x00007f1681d78339 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#9  0x00007f1681d860a8 in QTimer::timerEvent(QTimerEvent*) () from /usr/lib/libQt5Core.so.5
#10 0x00007f1681d79473 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#11 0x00007f1682626d8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#12 0x00007f168262c370 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#13 0x00007f1681d48a9b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#14 0x00007f1681d9ef6d in QTimerInfoList::activateTimers() () from /usr/lib/libQt5Core.so.5
#15 0x00007f1681d9d703 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#16 0x00007f166da244ad in ?? () from /usr/lib/qt/plugins/platforms/libqxcb.so
#17 0x00007f1681d46532 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#18 0x00007f1681d4df0c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#19 0x00007f16837feadb in kdemain () from /usr/lib/libkdeinit5_kwin_x11.so
#20 0x00007f1683477800 in __libc_start_main () from /usr/lib/libc.so.6
#21 0x00000000004007b9 in _start ()
A debugging session is active.

	Inferior 1 [process 865] will be detached.

Quit anyway? (y or n) Detaching from program: /usr/bin/kwin_x11, process 865