Bug 375689

Application: systemsettings5 (5.8.5)

Qt Version: 5.8.0
Frameworks Version: 5.30.0
Operating System: Linux 4.9.6-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
systemsettings->desktop behavior->screen locking->desktop behavior

The crash can be reproduced every time.

-- Backtrace:
Application: Ustawienia systemowe (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f14de3372c0 (LWP 1631))]

Thread 8 (Thread 0x7f149cad4700 (LWP 1645)):
#0  0x00007f14da04c48d in poll () at /usr/lib/libc.so.6
#1  0x00007f14d4171786 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f14d4171b12 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#3  0x00007f149da39316 in  () at /usr/lib/libgio-2.0.so.0
#4  0x00007f14d41990d5 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f14d6098454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f14da0557df in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f149d2d5700 (LWP 1644)):
#0  0x00007f14da04c48d in poll () at /usr/lib/libc.so.6
#1  0x00007f14d4171786 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f14d417189c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f14d41718e1 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f14d41990d5 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f14d6098454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f14da0557df in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f149fd8f700 (LWP 1643)):
#0  0x00007f14d41b6dd4 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f14d4170c7c in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007f14d41716ab in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f14d417189c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f14da97046b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f14da919c9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f14da73ba73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f14d8a3f025 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f14da7406d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f14d6098454 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f14da0557df in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f14aabe6700 (LWP 1640)):
#0  0x00007f14da04c48d in poll () at /usr/lib/libc.so.6
#1  0x00007f14d4171786 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f14d417189c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f14da97046b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f14da919c9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f14da73ba73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f14d8a3f025 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f14da7406d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f14d6098454 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f14da0557df in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f14b4708700 (LWP 1638)):
#0  0x00007f14d4170c48 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#1  0x00007f14d41716ab in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f14d417189c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f14da97046b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f14da919c9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f14da73ba73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f14d8a3f025 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f14da7406d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f14d6098454 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f14da0557df in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f14c2fb4700 (LWP 1634)):
#0  0x00007f14da0484ed in read () at /usr/lib/libc.so.6
#1  0x00007f14d41b5a10 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f14d4171235 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f14d4171724 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f14d417189c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f14da97046b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f14da919c9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f14da73ba73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f14db28a125 in  () at /usr/lib/libQt5DBus.so.5
#9  0x00007f14da7406d8 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f14d6098454 in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f14da0557df in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f14cb84c700 (LWP 1633)):
#0  0x00007f14da04c48d in poll () at /usr/lib/libc.so.6
#1  0x00007f14d691b8e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f14d691d679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f14ce3e3239 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f14da7406d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f14d6098454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f14da0557df in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f14de3372c0 (LWP 1631)):
[KCrash Handler]
#6  0x00007f14d88ff675 in QV4::WeakValue::free() () at /usr/lib/libQt5Qml.so.5
#7  0x00007f14d8974610 in QV4::QObjectWrapper::destroyObject(bool) () at /usr/lib/libQt5Qml.so.5
#8  0x00007f14d88031ad in QV4::MemoryManager::sweep(bool) () at /usr/lib/libQt5Qml.so.5
#9  0x00007f14d88045dc in QV4::MemoryManager::~MemoryManager() () at /usr/lib/libQt5Qml.so.5
#10 0x00007f14d88ecf9a in QV4::ExecutionEngine::~ExecutionEngine() () at /usr/lib/libQt5Qml.so.5
#11 0x00007f14d8a41612 in QV8Engine::~QV8Engine() () at /usr/lib/libQt5Qml.so.5
#12 0x00007f14d8a41739 in QV8Engine::~QV8Engine() () at /usr/lib/libQt5Qml.so.5
#13 0x00007f14d88821e6 in QJSEngine::~QJSEngine() () at /usr/lib/libQt5Qml.so.5
#14 0x00007f14d89a091d in QQmlEngine::~QQmlEngine() () at /usr/lib/libQt5Qml.so.5
#15 0x00007f14d89a09d9 in QQmlEngine::~QQmlEngine() () at /usr/lib/libQt5Qml.so.5
#16 0x00007f14da945811 in QObjectPrivate::deleteChildren() () at /usr/lib/libQt5Core.so.5
#17 0x00007f14dc4f263b in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#18 0x00007f14d95bd409 in QQuickWidget::~QQuickWidget() () at /usr/lib/libQt5QuickWidgets.so.5
#19 0x00007f14da945811 in QObjectPrivate::deleteChildren() () at /usr/lib/libQt5Core.so.5
#20 0x00007f14dc4f263b in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#21 0x00007f14dc4f2929 in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#22 0x00007f14da945811 in QObjectPrivate::deleteChildren() () at /usr/lib/libQt5Core.so.5
#23 0x00007f14dc4f263b in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#24 0x00007f14dc640109 in QStackedWidget::~QStackedWidget() () at /usr/lib/libQt5Widgets.so.5
#25 0x00007f14da945811 in QObjectPrivate::deleteChildren() () at /usr/lib/libQt5Core.so.5
#26 0x00007f14dc4f263b in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#27 0x00007f14dc64d189 in QTabWidget::~QTabWidget() () at /usr/lib/libQt5Widgets.so.5
#28 0x00007f14da945811 in QObjectPrivate::deleteChildren() () at /usr/lib/libQt5Core.so.5
#29 0x00007f14dc4f263b in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#30 0x00007f148e72cd6e in  () at /usr/lib/qt/plugins/screenlocker_kcm.so
#31 0x00007f14da945811 in QObjectPrivate::deleteChildren() () at /usr/lib/libQt5Core.so.5
#32 0x00007f14dc4f263b in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#33 0x00007f148e73188b in  () at /usr/lib/qt/plugins/screenlocker_kcm.so
#34 0x00007f14dddbf004 in KCModuleProxy::deleteClient() () at /usr/lib/libKF5KCMUtils.so.5
#35 0x00007f14dddbf51c in KCModuleProxy::~KCModuleProxy() () at /usr/lib/libKF5KCMUtils.so.5
#36 0x00007f14dddbf6d9 in KCModuleProxy::~KCModuleProxy() () at /usr/lib/libKF5KCMUtils.so.5
#37 0x00007f14da945811 in QObjectPrivate::deleteChildren() () at /usr/lib/libQt5Core.so.5
#38 0x00007f14dc4f263b in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#39 0x00007f14dc4f2929 in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#40 0x00007f14da945811 in QObjectPrivate::deleteChildren() () at /usr/lib/libQt5Core.so.5
#41 0x00007f14dc4f263b in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#42 0x00007f14dc66b379 in QScrollArea::~QScrollArea() () at /usr/lib/libQt5Widgets.so.5
#43 0x00007f14dccbeb1b in KPageWidgetItem::~KPageWidgetItem() () at /usr/lib/libKF5WidgetsAddons.so.5
#44 0x00007f14dccbf654 in  () at /usr/lib/libKF5WidgetsAddons.so.5
#45 0x00007f14dccc02aa in KPageWidgetModel::removePage(KPageWidgetItem*) () at /usr/lib/libKF5WidgetsAddons.so.5
#46 0x00007f14de00251d in ModuleView::closeModules() () at /usr/lib/libsystemsettingsview.so.3
#47 0x00007f14b68f42ce in  () at /usr/lib/qt/plugins/icon_mode.so
#48 0x00007f14da947149 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#49 0x00007f14dc4a8c92 in QAction::triggered(bool) () at /usr/lib/libQt5Widgets.so.5
#50 0x00007f14dc4ab3f0 in QAction::activate(QAction::ActionEvent) () at /usr/lib/libQt5Widgets.so.5
#51 0x00007f14dc5992ed in  () at /usr/lib/libQt5Widgets.so.5
#52 0x00007f14dc599524 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/libQt5Widgets.so.5
#53 0x00007f14dc66571a in QToolButton::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/libQt5Widgets.so.5
#54 0x00007f14dc4f6cd8 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#55 0x00007f14dc6657f9 in QToolButton::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#56 0x00007f14dc4af34c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#57 0x00007f14dc4b78c5 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#58 0x00007f14da91b840 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#59 0x00007f14dc4b60cd in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib/libQt5Widgets.so.5
#60 0x00007f14dc5113e6 in  () at /usr/lib/libQt5Widgets.so.5
#61 0x00007f14dc513e03 in  () at /usr/lib/libQt5Widgets.so.5
#62 0x00007f14dc4af34c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#63 0x00007f14dc4b6b61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#64 0x00007f14da91b840 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#65 0x00007f14dbd1ad53 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt5Gui.so.5
#66 0x00007f14dbd1c8c5 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#67 0x00007f14dbcf844b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#68 0x00007f14ce4439e0 in  () at /usr/lib/libQt5XcbQpa.so.5
#69 0x00007f14d4171587 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#70 0x00007f14d41717f0 in  () at /usr/lib/libglib-2.0.so.0
#71 0x00007f14d417189c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#72 0x00007f14da97044f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#73 0x00007f14da919c9a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#74 0x00007f14da9221e4 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#75 0x000000000040c0b0 in  ()
#76 0x00007f14d9f8d291 in __libc_start_main () at /usr/lib/libc.so.6
#77 0x000000000040c12a in _start ()

Possible duplicates by query: bug 375688, bug 375636, bug 375620, bug 375576, bug 375486.

Reported using DrKonqi