https://bugs.kde.org/show_bug.cgi?id=382843

            Bug ID: 382843
           Summary: Reliably crashes on wayland when clicking logout
                    button
           Product: frameworks-plasma
           Version: unspecified
          Platform: openSUSE RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: tooltips
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected]
  Target Milestone: ---

I get this backtrace 100% reproducible:

#0  0x00007f87f15baa90 in raise () from /lib64/libc.so.6
#1  0x00007f87f15bc0f6 in abort () from /lib64/libc.so.6
#2  0x00007f87f05af41f in ?? ()
#3  0x00007f87f05ab4dd in wl_proxy_marshal_array_constructor_versioned () from
/usr/lib64/libwayland-client.so.0
#4  0x00007f87f05ab5ec in wl_proxy_marshal () from
/usr/lib64/libwayland-client.so.0
#5  0x00007f87e4714188 in
QtWaylandClient::QWaylandWlShellSurface::updateTransientParent(QWindow*) ()
from /usr/lib64/libQt5WaylandClient.so.5
#6  0x00007f87e47124fb in QtWaylandClient::QWaylandWindow::initWindow() () from
/usr/lib64/libQt5WaylandClient.so.5
#7  0x00007f87e4712b0d in QtWaylandClient::QWaylandWindow::setVisible(bool) ()
from /usr/lib64/libQt5WaylandClient.so.5
#8  0x00007f874fdf9cf4 in QtWaylandClient::QWaylandEglWindow::setVisible(bool)
() from
/usr/lib64/qt5/plugins/wayland-graphics-integration-client/libwayland-egl.so
#9  0x00007f87f2790c9d in QWindow::setVisible(bool) () from
/usr/lib64/libQt5Gui.so.5
#10 0x00007f87f7a5c0cd in PlasmaQuick::Dialog::setVisible (this=0x556ed82ce3c0,
visible=<optimized out>) at
/usr/src/debug/plasma-framework-5.36.0git.20170727T045342~8125fbcbf/src/plasmaquick/dialog.cpp:1369
#11 0x00007f87450f4d9f in ToolTip::showToolTip (this=0x556edc1c0ae0) at
/usr/src/debug/plasma-framework-5.36.0git.20170727T045342~8125fbcbf/src/declarativeimports/core/tooltip.cpp:160
#12 0x00007f87f1f6035c in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib64/libQt5Core.so.5
#13 0x00007f87f1f6c6a7 in QTimer::timeout(QTimer::QPrivateSignal) () from
/usr/lib64/libQt5Core.so.5
#14 0x00007f87f1f6c9d8 in QTimer::timerEvent(QTimerEvent*) () from
/usr/lib64/libQt5Core.so.5
#15 0x00007f87f1f60bfb in QObject::event(QEvent*) () from
/usr/lib64/libQt5Core.so.5
#16 0x00007f87f2f4193c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib64/libQt5Widgets.so.5
#17 0x00007f87f2f48cb4 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#18 0x00007f87f1f32d48 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib64/libQt5Core.so.5
#19 0x00007f87f1f87c3e in QTimerInfoList::activateTimers() () from
/usr/lib64/libQt5Core.so.5
#20 0x00007f87f1f88389 in ?? () from /usr/lib64/libQt5Core.so.5
#21 0x00007f87ec69eb67 in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#22 0x00007f87ec69ed98 in ?? () from /usr/lib64/libglib-2.0.so.0
#23 0x00007f87ec69ee2c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#24 0x00007f87f1f8868f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQt5Core.so.5
#25 0x00007f87f1f3135a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQt5Core.so.5
#26 0x00007f87f1f39be4 in QCoreApplication::exec() () from
/usr/lib64/libQt5Core.so.5
#27 0x0000556ed356cd9b in ?? ()
#28 0x00007f87f15a646a in __libc_start_main () from /lib64/libc.so.6
#29 0x0000556ed356d11a in _start ()

This is printed on stderr: "error marshalling arguments for set_transient
(signature oiiu): null value passed for arg 0"

Not sure whether this is a bug in plasma-framework or Qt 5.9.1.

Workaround:

[PlasmaToolTips]
Delay=0

in ~/.config/plasmarc

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