1) Open Plasma settings 2) Go to Feedback and change it to Basic or Detailed then click apply 3) Click on Firewall Expected result : Firewall settings page is opened. Observed result : Plasma settings crashes. Operating System: Manjaro Linux KDE Plasma Version: 5.21.1 KDE Frameworks Version: 5.79.0 Qt Version: 5.15.2 Kernel Version: 5.4.100-1-MANJARO OS Type: 64-bit
[Thread debugging using libthread_db enabled] Using host libthread_db library "/usr/lib/libthread_db.so.1". Core was generated by `/usr/bin/systemsettings5'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007f319d532da2 in FirewallClient::capabilities() const () from /usr/lib/libkcm_firewall_core.so [Current thread is 1 (Thread 0x7f31cda52840 (LWP 24668))] (gdb) bt #0 0x00007f319d532da2 in FirewallClient::capabilities() const () at /usr/lib/libkcm_firewall_core.so #1 0x00007f319dfc8bb6 in () at /usr/lib/qt/plugins/kcms/kcm_firewall.so #2 0x00007f319dfcb15c in () at /usr/lib/qt/plugins/kcms/kcm_firewall.so #3 0x00007f31d284cb85 in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () at /usr/lib/libKF5CoreAddons.so.5 #4 0x00007f31d3d1a552 in KCModuleLoader::loadModule(KCModuleInfo const&, KCModuleLoader::ErrorReporting, QWidget*, QStringList const&) () at /usr/lib/libKF5KCMUtils.so.5 #5 0x00007f31d3d22f24 in () at /usr/lib/libKF5KCMUtils.so.5 #6 0x00007f31d3d2338b in KCModuleProxy::realModule() const () at /usr/lib/libKF5KCMUtils.so.5 #7 0x00007f31d3d23a84 in KCModuleProxy::showEvent(QShowEvent*) () at /usr/lib/libKF5KCMUtils.so.5 #8 0x00007f31d3168b0e in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5 #9 0x00007f31d3127752 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5 #10 0x00007f31d2564a2a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5 #11 0x00007f31d3165338 in QWidgetPrivate::show_helper() () at /usr/lib/libQt5Widgets.so.5 #12 0x00007f31d316528a in QWidgetPrivate::showChildren(bool) () at /usr/lib/libQt5Widgets.so.5 #13 0x00007f31d3165312 in QWidgetPrivate::show_helper() () at /usr/lib/libQt5Widgets.so.5 #14 0x00007f31d316864d in QWidgetPrivate::setVisible(bool) () at /usr/lib/libQt5Widgets.so.5 #15 0x00007f31d3165273 in QWidgetPrivate::showChildren(bool) () at /usr/lib/libQt5Widgets.so.5 #16 0x00007f31d3165312 in QWidgetPrivate::show_helper() () at /usr/lib/libQt5Widgets.so.5 #17 0x00007f31d316864d in QWidgetPrivate::setVisible(bool) () at /usr/lib/libQt5Widgets.so.5 #18 0x00007f31d314d1a2 in QStackedLayout::setCurrentIndex(int) () at /usr/lib/libQt5Widgets.so.5 #19 0x00007f31d38c42b4 in () at /usr/lib/libKF5WidgetsAddons.so.5 #20 0x00007f31d259bdc0 in () at /usr/lib/libQt5Core.so.5 #21 0x00007f31d250e731 in QItemSelectionModel::selectionChanged(QItemSelection const&, QItemSelection const&) () at /usr/lib/libQt5Core.so.5 #22 0x00007f31d2517551 in QItemSelectionModel::select(QItemSelection const&, QFlags<QItemSelectionModel::SelectionFlag>) () at /usr/lib/libQt5Core.so.5 #23 0x00007f31d2512075 in QItemSelectionModel::setCurrentIndex(QModelIndex const&, QFlags<QItemSelectionModel::SelectionFlag>) () at /usr/lib/libQt5Core.so.5 #24 0x00007f31d38c2688 in () at /usr/lib/libKF5WidgetsAddons.so.5 #25 0x00007f31d38c412d in () at /usr/lib/libKF5WidgetsAddons.so.5 #26 0x00007f31d259bdc0 in () at /usr/lib/libQt5Core.so.5 #27 0x00007f31d24fe087 in QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () at /usr/lib/libQt5Core.so.5 #28 0x00007f31d38caa85 in KPageWidgetModel::addPage(KPageWidgetItem*) () at /usr/lib/libKF5WidgetsAddons.so.5 #29 0x00007f31b5072db0 in () at /usr/lib/qt/plugins/systemsettingsview/systemsettings_sidebar_mode.so #30 0x00007f31b50656dd in () at /usr/lib/qt/plugins/systemsettingsview/systemsettings_sidebar_mode.so #31 0x00007f31b506378e in () at /usr/lib/qt/plugins/systemsettingsview/systemsettings_sidebar_mode.so #32 0x00007f31b5064063 in () at /usr/lib/qt/plugins/systemsettingsview/systemsettings_sidebar_mode.so #33 0x00007f31d168256e in () at /usr/lib/libQt5Qml.so.5 #34 0x00007f31d156809f in () at /usr/lib/libQt5Qml.so.5 #35 0x00007f31d1569f3a in QV4::QObjectMethod::callInternal(QV4::Value const*, QV4::Value const*, int) const () at /usr/lib/libQt5Qml.so.5 #36 0x00007f31d15972fa in QV4::Runtime::CallPropertyLookup::call(QV4::ExecutionEngine*, QV4::Value const&, unsigned int, QV4::Value*, int) () at /usr/lib/libQt5Qml.so.5 #37 0x00007f319535853c in () #38 0x0000000000000000 in ()
*** This bug has been marked as a duplicate of bug 433025 ***