https://bugs.kde.org/show_bug.cgi?id=361077

            Bug ID: 361077
           Summary: Plasmashell crashes while walking through activities
                    in reverse order
           Product: plasmashell
           Version: 5.6.0
          Platform: Archlinux Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: System Tray
          Assignee: plasma-b...@kde.org
          Reporter: ivad...@gmail.com

Plasmashell crashes every time I try to walk through activities in reverse
order. The assigned keyboard combo is CTRL+ALT+UP.

Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5ce7a05800 (LWP 4493))]

Thread 9 (Thread 0x7f5cd087f700 (LWP 4494)):
#0  0x00007f5ce0eaec3d in poll () from /usr/lib/libc.so.6
#1  0x00007f5ce5eacae2 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007f5ce5eae757 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007f5cd219ca99 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f5ce159dde8 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007f5ce06b1424 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007f5ce0eb7cbd in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7f5ccabd4700 (LWP 4495)):
#0  0x00007f5ce0eaec3d in poll () from /usr/lib/libc.so.6
#1  0x00007f5cdd332f7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f5cdd33308c in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f5ce17c6cab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007f5ce176f6fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007f5ce1598fe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f5ce2559a55 in ?? () from /usr/lib/libQt5DBus.so.5
#7  0x00007f5ce159dde8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f5ce06b1424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f5ce0eb7cbd in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7f5cc9394700 (LWP 4496)):
#0  0x00007f5ce0eaec3d in poll () from /usr/lib/libc.so.6
#1  0x00007f5cdd332f7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f5cdd33308c in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f5ce17c6cab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007f5ce176f6fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007f5ce1598fe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f5ce493b915 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f5ce159dde8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f5ce06b1424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f5ce0eb7cbd in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7f5cb992f700 (LWP 4497)):
#0  0x00007f5cdd332932 in g_main_context_check () from
/usr/lib/libglib-2.0.so.0
#1  0x00007f5cdd332f20 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f5cdd33308c in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f5ce17c6cab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007f5ce176f6fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007f5ce1598fe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f5ce493b915 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f5ce159dde8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f5ce06b1424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f5ce0eb7cbd in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7f5cb3fff700 (LWP 4498)):
#0  0x00007f5ce0eaec3d in poll () from /usr/lib/libc.so.6
#1  0x00007f5cdd332f7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f5cdd33308c in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f5ce17c6cab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007f5ce176f6fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007f5ce1598fe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f5ce493b915 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f5ce159dde8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f5ce06b1424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f5ce0eb7cbd in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7f5cb29c1700 (LWP 4499)):
#0  0x00007f5ce06b703f in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007f5ce7196134 in ?? () from /usr/lib/libQt5Script.so.5
#2  0x00007f5ce7196179 in ?? () from /usr/lib/libQt5Script.so.5
#3  0x00007f5ce06b1424 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007f5ce0eb7cbd in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f5c2abe9700 (LWP 4501)):
#0  0x00007f5cdd332519 in g_main_context_prepare () from
/usr/lib/libglib-2.0.so.0
#1  0x00007f5cdd332eab in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f5cdd33308c in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f5ce17c6cab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007f5ce176f6fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007f5ce1598fe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f5ce54d5616 in ?? () from /usr/lib/libQt5Quick.so.5
#7  0x00007f5ce159dde8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f5ce06b1424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f5ce0eb7cbd in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f5c19362700 (LWP 4510)):
#0  0x00007f5ce0eaec3b in poll () from /usr/lib/libc.so.6
#1  0x00007f5cdd332f7c in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f5cdd33308c in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f5ce17c6cab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007f5ce176f6fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007f5ce1598fe4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f5c1b8665b7 in KCupsConnection::run() () from
/usr/lib/libkcupslib.so
#7  0x00007f5ce159dde8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f5ce06b1424 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f5ce0eb7cbd in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f5ce7a05800 (LWP 4493)):
[KCrash Handler]
#5  0x00007f5ce6af5970 in KActivities::Info::id() const () from
/usr/lib/libKF5Activities.so.5
#6  0x00007f5cb1daab09 in
KActivitiesBackport::ActivitiesModel::data(QModelIndex const&, int) const ()
from
/usr/lib/qt/qml/org/kde/plasma/activityswitcher/libactivityswitcherextensionplugin.so
#7  0x00007f5ce1736cd9 in QSortFilterProxyModel::data(QModelIndex const&, int)
const () from /usr/lib/libQt5Core.so.5
#8  0x00007f5cb1da4c81 in ?? () from
/usr/lib/qt/qml/org/kde/plasma/activityswitcher/libactivityswitcherextensionplugin.so
#9  0x00007f5cb1da9609 in ?? () from
/usr/lib/qt/qml/org/kde/plasma/activityswitcher/libactivityswitcherextensionplugin.so
#10 0x00007f5cb1d9e89a in ?? () from
/usr/lib/qt/qml/org/kde/plasma/activityswitcher/libactivityswitcherextensionplugin.so
#11 0x00007f5ce179dbae in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/libQt5Core.so.5
#12 0x00007f5ce29193d2 in QAction::triggered(bool) () from
/usr/lib/libQt5Widgets.so.5
#13 0x00007f5ce291bef0 in QAction::activate(QAction::ActionEvent) () from
/usr/lib/libQt5Widgets.so.5
#14 0x00007f5ce4c6e2b2 in ?? () from /usr/lib/libKF5GlobalAccel.so.5
#15 0x00007f5ce179d870 in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/libQt5Core.so.5
#16 0x00007f5ce4c7d0b4 in ?? () from /usr/lib/libKF5GlobalAccel.so.5
#17 0x00007f5ce4c7dcb0 in ?? () from /usr/lib/libKF5GlobalAccel.so.5
#18 0x00007f5ce2565643 in ?? () from /usr/lib/libQt5DBus.so.5
#19 0x00007f5ce179e659 in QObject::event(QEvent*) () from
/usr/lib/libQt5Core.so.5
#20 0x00007f5ce292268c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/libQt5Widgets.so.5
#21 0x00007f5ce29278f6 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#22 0x00007f5ce1771518 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#23 0x00007f5ce17733da in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#24 0x00007f5ce17c6883 in ?? () from /usr/lib/libQt5Core.so.5
#25 0x00007f5cdd332d87 in g_main_context_dispatch () from
/usr/lib/libglib-2.0.so.0
#26 0x00007f5cdd332fe0 in ?? () from /usr/lib/libglib-2.0.so.0
#27 0x00007f5cdd33308c in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#28 0x00007f5ce17c6c8f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#29 0x00007f5ce176f6fa in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#30 0x00007f5ce1777b7c in QCoreApplication::exec() () from
/usr/lib/libQt5Core.so.5
#31 0x000000000041c176 in ?? ()
#32 0x00007f5ce0df0710 in __libc_start_main () from /usr/lib/libc.so.6
#33 0x000000000041c2d9 in _start ()

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