https://bugs.kde.org/show_bug.cgi?id=364524
Bug ID: 364524
Summary: kcmshell5 kcm_sddm dumps core everytime it is executed
Product: systemsettings
Version: 5.6.95
Platform: Compiled Sources
OS: Linux
Status: UNCONFIRMED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: bob.mt....@gmail.com
Application: systemsettings5 (5.6.95)
(Compiled from sources)
Qt Version: 5.7.0
Frameworks Version: 5.23.0
Operating System: Linux 4.6.0-gentoo x86_64
Distribution: "Gentoo Base System release 2.2"
-- Information about the crash:
I'm unable to access the KCM module for SDDM (either via the SystemSettings5
menu or via a direct launch from a console).
I'm getting the following message when I attempt:
kcmshell 5 kcm_sddm
QDBusArgument: read from a write-only object
Aborted (core dumped)
The crash can be reproduced every time.
-- Backtrace:
Application: System Settings (systemsettings5), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff41bcdb7c0 (LWP 19310))]
Thread 6 (Thread 0x7ff3ea693700 (LWP 19317)):
#0 0x00007ff41836537d in poll () from /lib64/libc.so.6
#1 0x00007ff4139dd0ac in g_main_context_iterate.isra () from
/usr/lib64/libglib-2.0.so.0
#2 0x00007ff4139dd432 in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#3 0x00007ff3eb17da26 in gdbus_shared_thread_func () from
/usr/lib64/libgio-2.0.so.0
#4 0x00007ff413a037b5 in g_thread_proxy () from /usr/lib64/libglib-2.0.so.0
#5 0x00007ff415732424 in start_thread () from /lib64/libpthread.so.0
#6 0x00007ff41836e3fd in clone () from /lib64/libc.so.6
Thread 5 (Thread 0x7ff3eae94700 (LWP 19316)):
#0 0x00007ff41836537d in poll () from /lib64/libc.so.6
#1 0x00007ff4139dd0ac in g_main_context_iterate.isra () from
/usr/lib64/libglib-2.0.so.0
#2 0x00007ff4139dd1bc in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3 0x00007ff4139dd1f9 in glib_worker_main () from /usr/lib64/libglib-2.0.so.0
#4 0x00007ff413a037b5 in g_thread_proxy () from /usr/lib64/libglib-2.0.so.0
#5 0x00007ff415732424 in start_thread () from /lib64/libpthread.so.0
#6 0x00007ff41836e3fd in clone () from /lib64/libc.so.6
Thread 4 (Thread 0x7ff3f4801700 (LWP 19315)):
#0 0x00007ff41836537d in poll () from /lib64/libc.so.6
#1 0x00007ff4139dd0ac in g_main_context_iterate.isra () from
/usr/lib64/libglib-2.0.so.0
#2 0x00007ff4139dd1bc in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3 0x00007ff418cdbebb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQt5Core.so.5
#4 0x00007ff418c831ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQt5Core.so.5
#5 0x00007ff418ac088b in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6 0x00007ff41736f2e5 in QQmlThreadPrivate::run() () from
/usr/lib64/libQt5Qml.so.5
#7 0x00007ff418ac62ad in QThreadPrivate::start(void*) () from
/usr/lib64/libQt5Core.so.5
#8 0x00007ff415732424 in start_thread () from /lib64/libpthread.so.0
#9 0x00007ff41836e3fd in clone () from /lib64/libc.so.6
Thread 3 (Thread 0x7ff4027aa700 (LWP 19313)):
#0 0x00007ff41836537d in poll () from /lib64/libc.so.6
#1 0x00007ff4139dd0ac in g_main_context_iterate.isra () from
/usr/lib64/libglib-2.0.so.0
#2 0x00007ff4139dd1bc in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3 0x00007ff418cdbebb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQt5Core.so.5
#4 0x00007ff418c831ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQt5Core.so.5
#5 0x00007ff418ac088b in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6 0x00007ff41bddfc08 in QDBusConnectionManager::run() () from
/usr/lib64/libQt5DBus.so.5
#7 0x00007ff418ac62ad in QThreadPrivate::start(void*) () from
/usr/lib64/libQt5Core.so.5
#8 0x00007ff415732424 in start_thread () from /lib64/libpthread.so.0
#9 0x00007ff41836e3fd in clone () from /lib64/libc.so.6
Thread 2 (Thread 0x7ff40b321700 (LWP 19312)):
#0 0x00007ff41836537d in poll () from /lib64/libc.so.6
#1 0x00007ff415faa8f2 in _xcb_conn_wait () from /usr/lib64/libxcb.so.1
#2 0x00007ff415fac707 in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3 0x00007ff40deb9bf9 in QXcbEventReader::run() () from
/usr/lib64/libQt5XcbQpa.so.5
#4 0x00007ff418ac62ad in QThreadPrivate::start(void*) () from
/usr/lib64/libQt5Core.so.5
#5 0x00007ff415732424 in start_thread () from /lib64/libpthread.so.0
#6 0x00007ff41836e3fd in clone () from /lib64/libc.so.6
Thread 1 (Thread 0x7ff41bcdb7c0 (LWP 19310)):
[KCrash Handler]
#6 0x00007ff4182b82f8 in raise () from /lib64/libc.so.6
#7 0x00007ff4182b974a in abort () from /lib64/libc.so.6
#8 0x00007ff418aae9e9 in QMessageLogger::fatal(char const*, ...) const () from
/usr/lib64/libQt5Core.so.5
#9 0x00007ff41bddef88 in
QDBusArgumentPrivate::checkRead(QDBusArgumentPrivate*) [clone .part.27] () from
/usr/lib64/libQt5DBus.so.5
#10 0x00007ff41be2d428 in
QDBusArgumentPrivate::checkReadAndDetach(QDBusArgumentPrivate*&) () from
/usr/lib64/libQt5DBus.so.5
#11 0x00007ff41be303e9 in QDBusArgument::beginMapEntry() const () from
/usr/lib64/libQt5DBus.so.5
#12 0x00007ff3eb89e6b2 in PolkitQt1::Authority::Private::init() () from
/usr/lib64/libpolkit-qt5-core-1.so.1
#13 0x00007ff3eb89f051 in PolkitQt1::Authority::Authority(_PolkitAuthority*,
QObject*) () from /usr/lib64/libpolkit-qt5-core-1.so.1
#14 0x00007ff3eb89f312 in PolkitQt1::Authority::instance(_PolkitAuthority*) ()
from /usr/lib64/libpolkit-qt5-core-1.so.1
#15 0x00007ff3ebaaf5fa in KAuth::Polkit1Backend::Polkit1Backend() () from
/usr/lib64/qt5/plugins/kauth/backend/kauth_backend_plugin.so
#16 0x00007ff3ebab16b5 in qt_plugin_instance () from
/usr/lib64/qt5/plugins/kauth/backend/kauth_backend_plugin.so
#17 0x00007ff418c6f563 in QPluginLoader::instance() () from
/usr/lib64/libQt5Core.so.5
#18 0x00007ff417b181cb in KAuth::BackendsManager::retrieveInstancesIn(QString
const&) () from /usr/lib64/libKF5Auth.so.5
#19 0x00007ff417b18683 in KAuth::BackendsManager::init() () from
/usr/lib64/libKF5Auth.so.5
#20 0x00007ff417b18d4d in KAuth::BackendsManager::authBackend() () from
/usr/lib64/libKF5Auth.so.5
#21 0x00007ff417b113fb in KAuth::Action::setName(QString const&) () from
/usr/lib64/libKF5Auth.so.5
#22 0x00007ff417b11556 in KAuth::Action::Action(QString const&) () from
/usr/lib64/libKF5Auth.so.5
#23 0x00007ff41ae90398 in KCModule::setNeedsAuthorization(bool) () from
/usr/lib64/libKF5ConfigWidgets.so.5
#24 0x00007ff3ed39cd49 in SddmKcm::SddmKcm(QWidget*, QList<QVariant> const&) ()
from /usr/lib64/qt5/plugins/kcm_sddm.so
#25 0x00007ff3ed39df7b in QObject* KPluginFactory::createInstance<SddmKcm,
QWidget>(QWidget*, QObject*, QList<QVariant> const&) () from
/usr/lib64/qt5/plugins/kcm_sddm.so
#26 0x00007ff418f304bc in KPluginFactory::create(char const*, QWidget*,
QObject*, QList<QVariant> const&, QString const&) () from
/usr/lib64/libKF5CoreAddons.so.5
#27 0x00007ff41b867806 in KCModuleLoader::loadModule(KCModuleInfo const&,
KCModuleLoader::ErrorReporting, QWidget*, QStringList const&) () from
/usr/lib64/libKF5KCMUtils.so.5
#28 0x00007ff41b86ecdf in KCModuleProxyPrivate::loadModule() () from
/usr/lib64/libKF5KCMUtils.so.5
#29 0x00007ff41b86f8d5 in KCModuleProxy::realModule() const () from
/usr/lib64/libKF5KCMUtils.so.5
#30 0x00007ff41b86fe23 in KCModuleProxy::showEvent(QShowEvent*) () from
/usr/lib64/libKF5KCMUtils.so.5
#31 0x00007ff41a19bd98 in QWidget::event(QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#32 0x00007ff41a14c644 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib64/libQt5Widgets.so.5
#33 0x00007ff41a1541ee in QApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#34 0x00007ff418c84b4a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib64/libQt5Core.so.5
#35 0x00007ff41a198582 in QWidgetPrivate::show_helper() () from
/usr/lib64/libQt5Widgets.so.5
#36 0x00007ff41a198440 in QWidgetPrivate::showChildren(bool) () from
/usr/lib64/libQt5Widgets.so.5
#37 0x00007ff41a1984ff in QWidgetPrivate::show_helper() () from
/usr/lib64/libQt5Widgets.so.5
#38 0x00007ff41a19b8cc in QWidget::setVisible(bool) () from
/usr/lib64/libQt5Widgets.so.5
#39 0x00007ff41a198458 in QWidgetPrivate::showChildren(bool) () from
/usr/lib64/libQt5Widgets.so.5
#40 0x00007ff41a1984ff in QWidgetPrivate::show_helper() () from
/usr/lib64/libQt5Widgets.so.5
#41 0x00007ff41a19b8cc in QWidget::setVisible(bool) () from
/usr/lib64/libQt5Widgets.so.5
#42 0x00007ff41a17ac95 in QStackedLayout::setCurrentIndex(int) () from
/usr/lib64/libQt5Widgets.so.5
#43 0x00007ff41a17aea4 in QStackedLayout::setCurrentWidget(QWidget*) () from
/usr/lib64/libQt5Widgets.so.5
#44 0x00007ff41a2f66b1 in QStackedWidget::setCurrentWidget(QWidget*) () from
/usr/lib64/libQt5Widgets.so.5
#45 0x00007ff41a7a2b95 in KPageViewPrivate::_k_pageSelected(QItemSelection
const&, QItemSelection const&) () from /usr/lib64/libKF5WidgetsAddons.so.5
#46 0x00007ff418cb1706 in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib64/libQt5Core.so.5
#47 0x00007ff418c3c777 in QItemSelectionModel::selectionChanged(QItemSelection
const&, QItemSelection const&) () from /usr/lib64/libQt5Core.so.5
#48 0x00007ff418c41130 in
QItemSelectionModel::emitSelectionChanged(QItemSelection const&, QItemSelection
const&) () from /usr/lib64/libQt5Core.so.5
#49 0x00007ff418c43ba2 in QItemSelectionModel::select(QItemSelection const&,
QFlags<QItemSelectionModel::SelectionFlag>) () from /usr/lib64/libQt5Core.so.5
#50 0x00007ff41a3e5eb8 in QListView::setSelection(QRect const&,
QFlags<QItemSelectionModel::SelectionFlag>) () from
/usr/lib64/libQt5Widgets.so.5
#51 0x00007ff41a3c519b in QAbstractItemView::mousePressEvent(QMouseEvent*) ()
from /usr/lib64/libQt5Widgets.so.5
#52 0x00007ff41a19c6ff in QWidget::event(QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#53 0x00007ff41a28e0ee in QFrame::event(QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#54 0x00007ff41a3cb9bb in QAbstractItemView::viewportEvent(QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#55 0x00007ff418c848f4 in
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) ()
from /usr/lib64/libQt5Core.so.5
#56 0x00007ff41a14c61e in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib64/libQt5Widgets.so.5
#57 0x00007ff41a154e58 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#58 0x00007ff418c84b4a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib64/libQt5Core.so.5
#59 0x00007ff41a15388d in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from
/usr/lib64/libQt5Widgets.so.5
#60 0x00007ff41a1b71af in QWidgetWindow::handleMouseEvent(QMouseEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#61 0x00007ff41a1b9b0b in QWidgetWindow::event(QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#62 0x00007ff41a14c644 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib64/libQt5Widgets.so.5
#63 0x00007ff41a1541ee in QApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libQt5Widgets.so.5
#64 0x00007ff418c84b4a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib64/libQt5Core.so.5
#65 0x00007ff419bebf0d in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() from /usr/lib64/libQt5Gui.so.5
#66 0x00007ff419beddd5 in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() from /usr/lib64/libQt5Gui.so.5
#67 0x00007ff419bccacb in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /usr/lib64/libQt5Gui.so.5
#68 0x00007ff40def57a0 in userEventSourceDispatch(_GSource*, int (*)(void*),
void*) () from /usr/lib64/libQt5XcbQpa.so.5
#69 0x00007ff4139dceb7 in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#70 0x00007ff4139dd110 in g_main_context_iterate.isra () from
/usr/lib64/libglib-2.0.so.0
#71 0x00007ff4139dd1bc in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#72 0x00007ff418cdbe9f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQt5Core.so.5
#73 0x00007ff418c831ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQt5Core.so.5
#74 0x00007ff418c8be2c in QCoreApplication::exec() () from
/usr/lib64/libQt5Core.so.5
#75 0x000000000040bffe in main ()
Reported using DrKonqi
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