Application: plasmashell (5.9.2)

Qt Version: 5.8.0
Frameworks Version: 5.31.0
Operating System: Linux 4.4.48-1-MANJARO x86_64
Distribution: "Manjaro Linux"

-- Information about the crash:
- What I was doing when the application crashed:
I had the system notifications set to automatic and change them to hide mode.
- Unusual behavior I noticed:
The desk went black for several seconds, then appeared again.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5c5e942800 (LWP 943))]

Thread 9 (Thread 0x7f5b7d096700 (LWP 10724)):
#0  0x00007f5c5800848d in poll () at /usr/lib/libc.so.6
#1  0x00007f5c52e26786 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f5c52e2689c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f5c5892c06b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f5c588d589a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f5c586f7a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f5c5b831025 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f5c586fc6d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f5c575c7454 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f5c580117df in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f5b91032700 (LWP 1374)):
#0  0x00007fff267ed979 in  ()
#1  0x00007fff267edc9f in clock_gettime ()
#2  0x00007f5c5801e6b6 in clock_gettime () at /usr/lib/libc.so.6
#3  0x00007f5c5892b201 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f5c589299c9 in QTimerInfoList::updateCurrentTime() () at /usr/lib/libQt5Core.so.5
#5  0x00007f5c5892b9c5 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f5c52e26179 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#7  0x00007f5c52e26724 in  () at /usr/lib/libglib-2.0.so.0
#8  0x00007f5c52e2689c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#9  0x00007f5c5892c06b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#10 0x00007f5c588d589a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#11 0x00007f5c586f7a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#12 0x00007f5b92b8b0a7 in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#13 0x00007f5c586fc6d8 in  () at /usr/lib/libQt5Core.so.5
#14 0x00007f5c575c7454 in start_thread () at /usr/lib/libpthread.so.0
#15 0x00007f5c580117df in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f5ba5a62700 (LWP 1252)):
#0  0x00007f5c580044ed in read () at /usr/lib/libc.so.6
#1  0x00007f5c52e6aa10 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f5c52e26235 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f5c52e26724 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f5c52e2689c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f5c5892c06b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f5c588d589a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f5c586f7a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f5c5c3e4fd6 in  () at /usr/lib/libQt5Quick.so.5
#9  0x00007f5c586fc6d8 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f5c575c7454 in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f5c580117df in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f5c3c9b9700 (LWP 1240)):
#0  0x00007f5c575cd10f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f5c5e0d9234 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f5c5e0d9279 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f5c575c7454 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f5c580117df in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f5c3e9ac700 (LWP 1233)):
#0  0x00007f5c5800848d in poll () at /usr/lib/libc.so.6
#1  0x00007f5c52e26786 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f5c52e2689c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f5c5892c06b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f5c588d589a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f5c586f7a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f5c5b831025 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f5c586fc6d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f5c575c7454 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f5c580117df in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f5c3ffff700 (LWP 1202)):
#0  0x00007f5c5800848d in poll () at /usr/lib/libc.so.6
#1  0x00007f5c52e26786 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f5c52e2689c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f5c5892c06b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f5c588d589a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f5c586f7a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f5c5b831025 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f5c586fc6d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f5c575c7454 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f5c580117df in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f5c45fd2700 (LWP 958)):
#0  0x00007f5c5801e6d9 in clock_gettime () at /usr/lib/libc.so.6
#1  0x00007f5c5892b201 in  () at /usr/lib/libQt5Core.so.5
#2  0x00007f5c589299c9 in QTimerInfoList::updateCurrentTime() () at /usr/lib/libQt5Core.so.5
#3  0x00007f5c58929f75 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/libQt5Core.so.5
#4  0x00007f5c5892b63e in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f5c52e25c89 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#6  0x00007f5c52e266ab in  () at /usr/lib/libglib-2.0.so.0
#7  0x00007f5c52e2689c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#8  0x00007f5c5892c06b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#9  0x00007f5c588d589a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#10 0x00007f5c586f7a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#11 0x00007f5c58d41125 in  () at /usr/lib/libQt5DBus.so.5
#12 0x00007f5c586fc6d8 in  () at /usr/lib/libQt5Core.so.5
#13 0x00007f5c575c7454 in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007f5c580117df in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f5c47c2c700 (LWP 950)):
#0  0x00007f5c5800848d in poll () at /usr/lib/libc.so.6
#1  0x00007f5c5cfff8e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f5c5d001679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f5c49b6b239 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f5c586fc6d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f5c575c7454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f5c580117df in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f5c5e942800 (LWP 943)):
[KCrash Handler]
#6  0x00007f5c588e02c7 in QMetaObject::cast(QObject const*) const () at /usr/lib/libQt5Core.so.5
#7  0x00007f5c32976a0f in  () at /usr/lib/qt/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#8  0x00007f5c3297b671 in  () at /usr/lib/qt/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#9  0x00007f5c3297c1c0 in  () at /usr/lib/qt/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#10 0x00007f5c3297c42d in  () at /usr/lib/qt/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#11 0x00007f5c590bcd05 in QWindow::event(QEvent*) () at /usr/lib/libQt5Gui.so.5
#12 0x00007f5c5c4aa4a5 in QQuickWindow::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#13 0x00007f5c3297c891 in  () at /usr/lib/qt/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#14 0x00007f5c5984534c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#15 0x00007f5c5984cb61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#16 0x00007f5c588d7440 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#17 0x00007f5c590b0d53 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt5Gui.so.5
#18 0x00007f5c590b28c5 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#19 0x00007f5c5908e44b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#20 0x00007f5c49bcb9e0 in  () at /usr/lib/libQt5XcbQpa.so.5
#21 0x00007f5c52e26587 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#22 0x00007f5c52e267f0 in  () at /usr/lib/libglib-2.0.so.0
#23 0x00007f5c52e2689c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#24 0x00007f5c5892c04f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#25 0x00007f5c588d589a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#26 0x00007f5c588ddde4 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#27 0x000000000041ca42 in  ()
#28 0x00007f5c57f49291 in __libc_start_main () at /usr/lib/libc.so.6
#29 0x000000000041cdca in _start ()

Reported using DrKonqi