Application: systemsettings5 (5.8.5)

Qt Version: 5.7.1
Frameworks Version: 5.29.0
Operating System: Linux 4.8.13-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:

Editing the Screen Corners to display all open windows from all desktops

- Unusual behavior I noticed:

The system settings application crashed

- Custom settings of the application:

Attempting to configure the Screen Corners to display all open windows from all desktops

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f447988d240 (LWP 5579))]

Thread 4 (Thread 0x7f4452994700 (LWP 5585)):
#0  0x00007f446f9d0db9 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f446f98ac95 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f446f98b6ab in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f446f98b89c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f4475ed12db in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f4475e7ad3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f4475c9d063 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007f4473ff0e75 in ?? () from /usr/lib/libQt5Qml.so.5
#8  0x00007f4475ca1cf8 in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007f447167c454 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f44755b77df in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f445e08f700 (LWP 5582)):
#0  0x00007f44755ae48d in poll () from /usr/lib/libc.so.6
#1  0x00007f446f98b786 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f446f98b89c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f4475ed12db in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f4475e7ad3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f4475c9d063 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f44767e6de5 in ?? () from /usr/lib/libQt5DBus.so.5
#7  0x00007f4475ca1cf8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f447167c454 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f44755b77df in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f4466ba2700 (LWP 5581)):
#0  0x00007f44755ae48d in poll () from /usr/lib/libc.so.6
#1  0x00007f4471eff8e0 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007f4471f01679 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007f4469327789 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f4475ca1cf8 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007f447167c454 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007f44755b77df in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f447988d240 (LWP 5579)):
[KCrash Handler]
#6  0x00007f4473ec2395 in QV4::WeakValue::free() () from /usr/lib/libQt5Qml.so.5
#7  0x00007f4473f32e42 in QV4::QObjectWrapper::destroyObject(bool) () from /usr/lib/libQt5Qml.so.5
#8  0x00007f4473dc963f in QV4::MemoryManager::sweep(bool) () from /usr/lib/libQt5Qml.so.5
#9  0x00007f4473dcaa4c in QV4::MemoryManager::~MemoryManager() () from /usr/lib/libQt5Qml.so.5
#10 0x00007f4473eb1f6b in QV4::ExecutionEngine::~ExecutionEngine() () from /usr/lib/libQt5Qml.so.5
#11 0x00007f4473ff2926 in QV8Engine::~QV8Engine() () from /usr/lib/libQt5Qml.so.5
#12 0x00007f4473ff2a49 in QV8Engine::~QV8Engine() () from /usr/lib/libQt5Qml.so.5
#13 0x00007f4473e49216 in QJSEngine::~QJSEngine() () from /usr/lib/libQt5Qml.so.5
#14 0x00007f4473f5d0bd in QQmlEngine::~QQmlEngine() () from /usr/lib/libQt5Qml.so.5
#15 0x00007f4473f5d179 in QQmlEngine::~QQmlEngine() () from /usr/lib/libQt5Qml.so.5
#16 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#17 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#18 0x00007f4474b20839 in QQuickWidget::~QQuickWidget() () from /usr/lib/libQt5QuickWidgets.so.5
#19 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#20 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#21 0x00007f4477a485f9 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#22 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#23 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#24 0x00007f4477b95f69 in QStackedWidget::~QStackedWidget() () from /usr/lib/libQt5Widgets.so.5
#25 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#26 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#27 0x00007f4477ba2d39 in QTabWidget::~QTabWidget() () from /usr/lib/libQt5Widgets.so.5
#28 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#29 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#30 0x00007f4448c83d6e in ?? () from /usr/lib/qt/plugins/screenlocker_kcm.so
#31 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#32 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#33 0x00007f4448c8888b in ?? () from /usr/lib/qt/plugins/screenlocker_kcm.so
#34 0x00007f4479311004 in KCModuleProxy::deleteClient() () from /usr/lib/libKF5KCMUtils.so.5
#35 0x00007f447931151c in KCModuleProxy::~KCModuleProxy() () from /usr/lib/libKF5KCMUtils.so.5
#36 0x00007f44793116d9 in KCModuleProxy::~KCModuleProxy() () from /usr/lib/libKF5KCMUtils.so.5
#37 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#38 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#39 0x00007f4477a485f9 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#40 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#41 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#42 0x00007f4477bc0fd9 in QScrollArea::~QScrollArea() () from /usr/lib/libQt5Widgets.so.5
#43 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#44 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#45 0x00007f447820ebae in ?? () from /usr/lib/libKF5WidgetsAddons.so.5
#46 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#47 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#48 0x00007f44782134c9 in KPageWidget::~KPageWidget() () from /usr/lib/libKF5WidgetsAddons.so.5
#49 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#50 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#51 0x00007f4479552859 in ModuleView::~ModuleView() () from /usr/lib/libsystemsettingsview.so.3
#52 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#53 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#54 0x00007f4477b95f69 in QStackedWidget::~QStackedWidget() () from /usr/lib/libQt5Widgets.so.5
#55 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#56 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#57 0x00007f4477b95f69 in QStackedWidget::~QStackedWidget() () from /usr/lib/libQt5Widgets.so.5
#58 0x00007f4475ea6831 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#59 0x00007f4477a4830b in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#60 0x00007f44790514ce in KMainWindow::~KMainWindow() () from /usr/lib/libKF5XmlGui.so.5
#61 0x000000000040ed87 in ?? ()
#62 0x000000000040edf9 in ?? ()
#63 0x00007f4475ea8f60 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#64 0x00007f4477a4cbab in QWidget::event(QEvent*) () from /usr/lib/libQt5Widgets.so.5
#65 0x00007f4477b4bd4b in QMainWindow::event(QEvent*) () from /usr/lib/libQt5Widgets.so.5
#66 0x00007f447905400a in KMainWindow::event(QEvent*) () from /usr/lib/libKF5XmlGui.so.5
#67 0x00007f44790a5a85 in KXmlGuiWindow::event(QEvent*) () from /usr/lib/libKF5XmlGui.so.5
#68 0x00007f4477a0535c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#69 0x00007f4477a0cad1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#70 0x00007f4475e7c8e0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#71 0x00007f4475e7f06d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#72 0x00007f4475ed0eb3 in ?? () from /usr/lib/libQt5Core.so.5
#73 0x00007f446f98b587 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#74 0x00007f446f98b7f0 in ?? () from /usr/lib/libglib-2.0.so.0
#75 0x00007f446f98b89c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#76 0x00007f4475ed12bf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#77 0x00007f4475e7ad3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#78 0x00007f4475e8323c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#79 0x000000000040c0b0 in ?? ()
#80 0x00007f44754ef291 in __libc_start_main () from /usr/lib/libc.so.6
#81 0x000000000040c12a in _start ()

Possible duplicates by query: bug 374648, bug 374556, bug 374534, bug 374489, bug 374475.

Reported using DrKonqi