https://bugs.kde.org/show_bug.cgi?id=383468

            Bug ID: 383468
           Summary: Plasma dropped after setting up the system tray
           Product: plasmashell
           Version: 5.10.4
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: k...@davidedmundson.co.uk
          Reporter: petrov.rainki...@gmail.com
                CC: plasma-b...@kde.org
  Target Milestone: 1.0

Application: plasmashell (5.10.4)

Qt Version: 5.9.1
Frameworks Version: 5.36.0
Operating System: Linux 4.4.0-91-generic x86_64
Distribution: Maui

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

After setting the system tray, the plasma has fallen. Black screen, then
everything was fine.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc4661878c0 (LWP 1346))]

Thread 10 (Thread 0x7fc38288d700 (LWP 343)):
#0  0x00007fc4609d770d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fc45c37238c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc45c37249c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc4612ff94b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc4612a87ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc4610d1cd4 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc4637a00c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fc4610d6989 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc45ff7b6ba in start_thread (arg=0x7fc38288d700) at
pthread_create.c:333
#9  0x00007fc4609e33dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fc38329e700 (LWP 32646)):
#0  0x00007fc45c3b6a94 in g_mutex_unlock () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc45c3719a0 in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc45c3722bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc45c37249c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc4612ff94b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc4612a87ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc4610d1cd4 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc4610d6989 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc45ff7b6ba in start_thread (arg=0x7fc38329e700) at
pthread_create.c:333
#9  0x00007fc4609e33dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fc3994c8700 (LWP 1585)):
#0  0x00007fc4609d770d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fc45c37238c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc45c37249c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc4612ff94b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc4612a87ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc4610d1cd4 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc399b85517 in KCupsConnection::run() () from
/usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007fc4610d6989 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc45ff7b6ba in start_thread (arg=0x7fc3994c8700) at
pthread_create.c:333
#9  0x00007fc4609e33dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fc3afb89700 (LWP 1572)):
#0  0x00007fc45c3b6a79 in g_mutex_lock () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc45c37234e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc45c37249c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc4612ff94b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc4612a87ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc4610d1cd4 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc464141256 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fc4610d6989 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc45ff7b6ba in start_thread (arg=0x7fc3afb89700) at
pthread_create.c:333
#9  0x00007fc4609e33dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fc441d8f700 (LWP 1570)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fc465be6784 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007fc465be67c9 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007fc45ff7b6ba in start_thread (arg=0x7fc441d8f700) at
pthread_create.c:333
#4  0x00007fc4609e33dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fc443fff700 (LWP 1569)):
#0  _dl_update_slotinfo (req_modid=<optimized out>) at dl-tls.c:735
#1  0x00007fc466164c7c in update_get_addr (ti=0x7fc461563770) at dl-tls.c:802
#2  0x00007fc4610d5836 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fc4612ff83a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc45c37191d in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc45c3722bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fc45c37249c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fc4612ff94b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc4612a87ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fc4610d1cd4 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fc4637a00c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007fc4610d6989 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fc45ff7b6ba in start_thread (arg=0x7fc443fff700) at
pthread_create.c:333
#13 0x00007fc4609e33dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fc44a3b0700 (LWP 1544)):
#0  0x00007fc45c3b6a94 in g_mutex_unlock () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc45c371bf9 in g_main_context_query () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc45c372307 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc45c37249c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc4612ff94b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc4612a87ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc4610d1cd4 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc4637a00c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fc4610d6989 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fc45ff7b6ba in start_thread (arg=0x7fc44a3b0700) at
pthread_create.c:333
#10 0x00007fc4609e33dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fc44bdf5700 (LWP 1453)):
#0  0x00007fc45c36f420 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc45c371cea in g_main_context_check () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc45c372330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc45c37249c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc4612ff94b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc4612a87ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc4610d1cd4 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc4662c6b75 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fc4610d6989 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fc45ff7b6ba in start_thread (arg=0x7fc44bdf5700) at
pthread_create.c:333
#10 0x00007fc4609e33dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fc45183d700 (LWP 1354)):
#0  0x00007fc4609d770d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fc464b47c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fc464b498d7 in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fc453983329 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fc4610d6989 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc45ff7b6ba in start_thread (arg=0x7fc45183d700) at
pthread_create.c:333
#6  0x00007fc4609e33dd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fc4661878c0 (LWP 1346)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007fc46370005b in QQmlData::signalEmitted(QAbstractDeclarativeData*,
QObject*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fc4612d731e in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fc4641ece92 in QQuickItem::focusChanged(bool) () from
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007fc4641fec42 in QQuickItem::setFocus(bool, Qt::FocusReason) () from
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fc4641fee77 in QQuickItem::forceActiveFocus(Qt::FocusReason) () from
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fc4616a8193 in QWindow::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007fc464217f45 in QQuickWindow::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007fc4412c9851 in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#15 0x00007fc461c123fc in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007fc461c19e07 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007fc4612aa798 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007fc46169d609 in
QGuiApplicationPrivate::processActivatedEvent(QWindowSystemInterfacePrivate::ActivatedWindowEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#19 0x00007fc46169d98d in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007fc461677ceb in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#21 0x00007fc4539e1e00 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#22 0x00007fc45c372197 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fc45c3723f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fc45c37249c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fc4612ff92f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fc4612a87ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fc4612b1704 in QCoreApplication::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x000000000041cd68 in ?? ()
#29 0x00007fc4608fc830 in __libc_start_main (main=0x41c200, argc=1,
argv=0x7ffcb2562548, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffcb2562538) at ../csu/libc-start.c:291
#30 0x000000000041d0e9 in _start ()

Reported using DrKonqi

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