https://bugs.kde.org/show_bug.cgi?id=379719
Bug ID: 379719
Summary: KDEPlasmaPlatformTheme causes a crash if an MDI Window
with a menubar is created with the global menu enabled
Product: plasma-integration
Version: 5.9.5
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: crash
Priority: NOR
Component: general
Assignee: mgraess...@kde.org
Reporter: beo...@gmail.com
Target Milestone: ---
This manifests as System Settings crashing when the QtCurve config is opened:
```
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc9a18d9500 (LWP 19327))]
Thread 3 (Thread 0x7fc980ed8700 (LWP 19330)):
#0 0x00007fc99d5a867d in poll () from /usr/lib/libc.so.6
#1 0x00007fc9976989b6 in ?? () from /usr/lib/libglib-2.0.so.0
#2 0x00007fc997698acc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3 0x00007fc99decf09b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4 0x00007fc99de788ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5 0x00007fc99dc9aa73 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6 0x00007fc99e7e6125 in ?? () from /usr/lib/libQt5DBus.so.5
#7 0x00007fc99dc9f6d8 in ?? () from /usr/lib/libQt5Core.so.5
#8 0x00007fc9995e02e7 in start_thread () from /usr/lib/libpthread.so.0
#9 0x00007fc99d5b254f in clone () from /usr/lib/libc.so.6
Thread 2 (Thread 0x7fc98ebf1700 (LWP 19329)):
#0 0x00007fc99d5a867d in poll () from /usr/lib/libc.so.6
#1 0x00007fc999e648e0 in ?? () from /usr/lib/libxcb.so.1
#2 0x00007fc999e66679 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3 0x00007fc991788239 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4 0x00007fc99dc9f6d8 in ?? () from /usr/lib/libQt5Core.so.5
#5 0x00007fc9995e02e7 in start_thread () from /usr/lib/libpthread.so.0
#6 0x00007fc99d5b254f in clone () from /usr/lib/libc.so.6
Thread 1 (Thread 0x7fc9a18d9500 (LWP 19327)):
[KCrash Handler]
#6 0x00007fc99f27b724 in QWindow::type() const () from /usr/lib/libQt5Gui.so.5
#7 0x00007fc99f280d92 in QWindow::winId() const () from
/usr/lib/libQt5Gui.so.5
#8 0x00007fc98d7670a4 in ?? () from
/usr/lib/qt/plugins/platformthemes/KDEPlasmaPlatformTheme.so
#9 0x00007fc98d7676fd in ?? () from
/usr/lib/qt/plugins/platformthemes/KDEPlasmaPlatformTheme.so
#10 0x00007fc99fb87d2c in ?? () from /usr/lib/libQt5Widgets.so.5
#11 0x00007fc99fb88a05 in QMenuBar::eventFilter(QObject*, QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#12 0x00007fc99de7a1d1 in
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) ()
from /usr/lib/libQt5Core.so.5
#13 0x00007fc99fa0b325 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/libQt5Widgets.so.5
#14 0x00007fc99fa12b61 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#15 0x00007fc99de7a470 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#16 0x00007fc99fa53e26 in QWidget::setParent(QWidget*, QFlags<Qt::WindowType>)
() from /usr/lib/libQt5Widgets.so.5
#17 0x00007fc99fa54bbc in QWidget::setParent(QWidget*) () from
/usr/lib/libQt5Widgets.so.5
#18 0x00007fc99fa2e926 in QLayout::addChildWidget(QWidget*) () from
/usr/lib/libQt5Widgets.so.5
#19 0x00007fc99fa2e99f in QLayout::addWidget(QWidget*) () from
/usr/lib/libQt5Widgets.so.5
#20 0x00007fc99fb6e72c in QMdiSubWindow::setWidget(QWidget*) () from
/usr/lib/libQt5Widgets.so.5
#21 0x00007fc99fb62853 in QMdiArea::addSubWindow(QWidget*,
QFlags<Qt::WindowType>) () from /usr/lib/libQt5Widgets.so.5
#22 0x00007fc977023f4d in QtCurveConfig::previewControlPressed() () from
/usr/lib/qt/plugins/kstyle_qtcurve5_config.so
#23 0x00007fc977024069 in QtCurveConfig::setupPreview() () from
/usr/lib/qt/plugins/kstyle_qtcurve5_config.so
#24 0x00007fc97702f7b5 in QtCurveConfig::QtCurveConfig(QWidget*) () from
/usr/lib/qt/plugins/kstyle_qtcurve5_config.so
#25 0x00007fc97702f851 in allocate_kstyle_config () from
/usr/lib/qt/plugins/kstyle_qtcurve5_config.so
#26 0x00007fc9772acdaf in ?? () from /usr/lib/qt/plugins/kcm_style.so
#27 0x00007fc99dea60ee in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/libQt5Core.so.5
#28 0x00007fc99faf3d02 in QAbstractButton::clicked(bool) () from
/usr/lib/libQt5Widgets.so.5
#29 0x00007fc99faf3f54 in ?? () from /usr/lib/libQt5Widgets.so.5
#30 0x00007fc99faf5347 in ?? () from /usr/lib/libQt5Widgets.so.5
#31 0x00007fc99faf5524 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) ()
from /usr/lib/libQt5Widgets.so.5
#32 0x00007fc99fa52cd8 in QWidget::event(QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#33 0x00007fc99fa0b34c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/libQt5Widgets.so.5
#34 0x00007fc99fa138c5 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#35 0x00007fc99de7a470 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#36 0x00007fc99fa120cd in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from
/usr/lib/libQt5Widgets.so.5
#37 0x00007fc99fa6d3e6 in ?? () from /usr/lib/libQt5Widgets.so.5
#38 0x00007fc99fa6fe03 in ?? () from /usr/lib/libQt5Widgets.so.5
#39 0x00007fc99fa0b34c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/libQt5Widgets.so.5
#40 0x00007fc99fa12b61 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#41 0x00007fc99de7a470 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#42 0x00007fc99f276d53 in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() from /usr/lib/libQt5Gui.so.5
#43 0x00007fc99f2788c5 in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() from /usr/lib/libQt5Gui.so.5
#44 0x00007fc99f25444b in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /usr/lib/libQt5Gui.so.5
#45 0x00007fc9917e89e0 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#46 0x00007fc9976987b7 in g_main_context_dispatch () from
/usr/lib/libglib-2.0.so.0
#47 0x00007fc997698a20 in ?? () from /usr/lib/libglib-2.0.so.0
#48 0x00007fc997698acc in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#49 0x00007fc99decf07f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#50 0x00007fc99de788ca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#51 0x00007fc99de80e14 in QCoreApplication::exec() () from
/usr/lib/libQt5Core.so.5
#52 0x000000000040c2b4 in ?? ()
#53 0x00007fc99d4e6511 in __libc_start_main () from /usr/lib/libc.so.6
#54 0x000000000040c33a in _start ()
```
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