Application: plasmashell (5.9.1)

Qt Version: 5.8.0
Frameworks Version: 5.31.0
Operating System: Linux 4.8.15-1 x86_64
Distribution: "KaOS"

-- Information about the crash:
- What I was doing when the application crashed:

Widgets were locked. I clicked the menu button at the top left of desktop (icon with 3 horizontal bars). Screen went black and plasma crashed. Occurred every time I clicked the menu button. I have a panel at the top with a taskbar widget. I have a panel at the bottom with app shortcuts, system tray and k menu.

I use the KaOS distribution.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2047b30840 (LWP 485))]

Thread 9 (Thread 0x7f1f6bfff700 (LWP 23331)):
#0  0x00007f2042423c2d in poll () at /lib/libc.so.6
#1  0x00007f203635df21 in  () at /usr/lib/libpulse.so.0
#2  0x00007f203634fba1 in pa_mainloop_poll () at /usr/lib/libpulse.so.0
#3  0x00007f20363501de in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#4  0x00007f2036350290 in pa_mainloop_run () at /usr/lib/libpulse.so.0
#5  0x00007f203635de86 in  () at /usr/lib/libpulse.so.0
#6  0x00007f2035cef6c8 in  () at /usr/lib/pulseaudio/libpulsecommon-10.0.so
#7  0x00007f20419e6424 in start_thread () at /lib/libpthread.so.0
#8  0x00007f204242ccad in clone () at /lib/libc.so.6

Thread 8 (Thread 0x7f1f7f3b1700 (LWP 609)):
#0  0x00007f2042d287b4 in  () at /usr/lib/libQt5Core.so.5
#1  0x00007f203bdbe441 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f203bdbe9a8 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f203bdbeb0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f2042d28ebb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f2042cd6bba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f2042b0bd7c in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f1f81c74347 in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#8  0x00007f2042b106e9 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f20419e6424 in start_thread () at /lib/libpthread.so.0
#10 0x00007f204242ccad in clone () at /lib/libc.so.6

Thread 7 (Thread 0x7f1f9279d700 (LWP 602)):
#0  0x00007f204241fbfd in read () at /lib/libc.so.6
#1  0x00007f203be021c0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f203bdbe50e in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f203bdbe9a8 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f203bdbeb0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f2042d28ebb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f2042cd6bba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f2042b0bd7c in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f2045ae51b2 in  () at /usr/lib/libQt5Quick.so.5
#9  0x00007f2042b106e9 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f20419e6424 in start_thread () at /lib/libpthread.so.0
#11 0x00007f204242ccad in clone () at /lib/libc.so.6

Thread 6 (Thread 0x7f201bfff700 (LWP 601)):
#0  0x00007f20419ec03f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib/libpthread.so.0
#1  0x00007f204759c934 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f204759c979 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f20419e6424 in start_thread () at /lib/libpthread.so.0
#4  0x00007f204242ccad in clone () at /lib/libc.so.6

Thread 5 (Thread 0x7f2022385700 (LWP 597)):
#0  0x00007f203bdbbbb1 in  () at /usr/lib/libglib-2.0.so.0
#1  0x00007f203bdbe38a in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f203bdbe9a8 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f203bdbeb0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f2042d28ebb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f2042cd6bba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f2042b0bd7c in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f204513b3a5 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f2042b106e9 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f20419e6424 in start_thread () at /lib/libpthread.so.0
#10 0x00007f204242ccad in clone () at /lib/libc.so.6

Thread 4 (Thread 0x7f2023fff700 (LWP 596)):
#0  0x00007f204241fbfd in read () at /lib/libc.so.6
#1  0x00007f203be021c0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f203bdbe50e in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f203bdbe9a8 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f203bdbeb0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f2042d28ebb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f2042cd6bba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f2042b0bd7c in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f204513b3a5 in  () at /usr/lib/libQt5Qml.so.5
#9  0x00007f2042b106e9 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f20419e6424 in start_thread () at /lib/libpthread.so.0
#11 0x00007f204242ccad in clone () at /lib/libc.so.6

Thread 3 (Thread 0x7f2029de6700 (LWP 523)):
#0  0x00007f203be034a4 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f203bdbe439 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f203bdbe9a8 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f203bdbeb0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f2042d28ebb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f2042cd6bba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f2042b0bd7c in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f2047c74975 in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007f2042b106e9 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f20419e6424 in start_thread () at /lib/libpthread.so.0
#10 0x00007f204242ccad in clone () at /lib/libc.so.6

Thread 2 (Thread 0x7f2032aee700 (LWP 513)):
#0  0x00007f2042423c2d in poll () at /lib/libc.so.6
#1  0x00007f20464e28c2 in  () at /usr/lib/libxcb.so.1
#2  0x00007f20464e4617 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f2034431da9 in  () at /usr/lib/qt5/plugins/platforms/../../../libQt5XcbQpa.so.5
#4  0x00007f2042b106e9 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f20419e6424 in start_thread () at /lib/libpthread.so.0
#6  0x00007f204242ccad in clone () at /lib/libc.so.6

Thread 1 (Thread 0x7f2047b30840 (LWP 485)):
[KCrash Handler]
#5  0x00007f2045b88369 in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#6  0x00007f2045b88372 in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#7  0x00007f2045b884c4 in QQuickItem::setVisible(bool) () at /usr/lib/libQt5Quick.so.5
#8  0x00007f20476cb3bc in  () at /usr/lib/libKF5PlasmaQuick.so.5
#9  0x00007f20476cca8e in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/libKF5PlasmaQuick.so.5
#10 0x00007f20435a96ec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#11 0x00007f20435b0b56 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#12 0x00007f2042cd8648 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#13 0x00007f2043061629 in QWindow::setVisible(bool) () at /usr/lib/libQt5Gui.so.5
#14 0x00007f20476c8f43 in PlasmaQuick::Dialog::setVisible(bool) () at /usr/lib/libKF5PlasmaQuick.so.5
#15 0x00007f20476cbb28 in  () at /usr/lib/libKF5PlasmaQuick.so.5
#16 0x00007f20476cd21b in PlasmaQuick::Dialog::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib/libKF5PlasmaQuick.so.5
#17 0x00007f20450b533a in  () at /usr/lib/libQt5Qml.so.5
#18 0x00007f20450b3b88 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#19 0x00007f20450804d8 in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#20 0x00007f2045080a94 in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#21 0x00007f2045080ba1 in QV4::QObjectWrapper::put(QV4::Managed*, QV4::String*, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#22 0x00007f20450913f5 in QV4::Runtime::method_setProperty(QV4::ExecutionEngine*, QV4::Value const&, int, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#23 0x00007f1f93344f42 in  ()
#24 0x0000000001a51240 in  ()
#25 0x00007f1f93345504 in  ()
#26 0x0000000000000000 in  ()

Reported using DrKonqi