Bug 375576

Application: systemsettings5 (5.8.2)

Qt Version: 5.7.1
Frameworks Version: 5.30.0
Operating System: Linux 4.8.15-1 x86_64
Distribution: "KaOS"

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

Opening System Settings to change the Window Decorations via the Application Style app.

Keeps crashing when I go back in and navigate around the Windows Style part.

The crash can be reproduced sometimes.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f83370c6800 (LWP 2722))]

Thread 4 (Thread 0x7f830ca21700 (LWP 2731)):
#0  0x00007f83337ecc2d in poll () from /lib/libc.so.6
#1  0x00007f832eb15a04 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f832eb15b0c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f83340f299b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f83340a030a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f8333ed465c in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f8332858b05 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f8333ed9019 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f8330a1f424 in start_thread () from /lib/libpthread.so.0
#9  0x00007f83337f5cad in clone () from /lib/libc.so.6

Thread 3 (Thread 0x7f83210ac700 (LWP 2725)):
#0  0x00007f83337ecc2d in poll () from /lib/libc.so.6
#1  0x00007f832eb15a04 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f832eb15b0c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f83340f299b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f83340a030a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f8333ed465c in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f83372186b5 in ?? () from /usr/lib/libQt5DBus.so.5
#7  0x00007f8333ed9019 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f8330a1f424 in start_thread () from /lib/libpthread.so.0
#9  0x00007f83337f5cad in clone () from /lib/libc.so.6

Thread 2 (Thread 0x7f8325257700 (LWP 2724)):
#0  0x00007f83337ecc2d in poll () from /lib/libc.so.6
#1  0x00007f83312998c2 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007f833129b617 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007f83277e27c9 in ?? () from /usr/lib/qt5/plugins/platforms/../../../libQt5XcbQpa.so.5
#4  0x00007f8333ed9019 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007f8330a1f424 in start_thread () from /lib/libpthread.so.0
#6  0x00007f83337f5cad in clone () from /lib/libc.so.6

Thread 1 (Thread 0x7f83370c6800 (LWP 2722)):
[KCrash Handler]
#5  0x00007f833273c935 in QV4::WeakValue::free() () from /usr/lib/libQt5Qml.so.5
#6  0x00007f83327a5a39 in QV4::QObjectWrapper::destroyObject(bool) () from /usr/lib/libQt5Qml.so.5
#7  0x00007f83326478ec in QV4::MemoryManager::sweep(bool) () from /usr/lib/libQt5Qml.so.5
#8  0x00007f833264941c in QV4::MemoryManager::~MemoryManager() () from /usr/lib/libQt5Qml.so.5
#9  0x00007f833272d692 in QV4::ExecutionEngine::~ExecutionEngine() () from /usr/lib/libQt5Qml.so.5
#10 0x00007f833285a4d8 in QV8Engine::~QV8Engine() () from /usr/lib/libQt5Qml.so.5
#11 0x00007f833285a5f9 in QV8Engine::~QV8Engine() () from /usr/lib/libQt5Qml.so.5
#12 0x00007f83326c3826 in QJSEngine::~QJSEngine() () from /usr/lib/libQt5Qml.so.5
#13 0x00007f83327cdc25 in QQmlEngine::~QQmlEngine() () from /usr/lib/libQt5Qml.so.5
#14 0x00007f83327cdcb9 in QQmlEngine::~QQmlEngine() () from /usr/lib/libQt5Qml.so.5
#15 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#16 0x00007f83340d28f4 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#17 0x00007f8332b1ee54 in QQuickWindow::~QQuickWindow() () from /usr/lib/libQt5Quick.so.5
#18 0x00007f8332bc8b89 in QQuickView::~QQuickView() () from /usr/lib/libQt5Quick.so.5
#19 0x00007f83355e43e5 in QWindowContainer::~QWindowContainer() () from /usr/lib/libQt5Widgets.so.5
#20 0x00007f83355e4409 in QWindowContainer::~QWindowContainer() () from /usr/lib/libQt5Widgets.so.5
#21 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#22 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#23 0x00007f83355c3929 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#24 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#25 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#26 0x00007f83355c3929 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#27 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#28 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#29 0x00007f8335703819 in QStackedWidget::~QStackedWidget() () from /usr/lib/libQt5Widgets.so.5
#30 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#31 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#32 0x00007f833570fc69 in QTabWidget::~QTabWidget() () from /usr/lib/libQt5Widgets.so.5
#33 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#34 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#35 0x00007f8310560dce in ?? () from /usr/lib/qt5/plugins/kcm_kwindecoration.so
#36 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#37 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#38 0x00007f831055c871 in ?? () from /usr/lib/qt5/plugins/kcm_kwindecoration.so
#39 0x00007f8336c50374 in KCModuleProxy::deleteClient() () from /usr/lib/libKF5KCMUtils.so.5
#40 0x00007f8336c5081a in KCModuleProxy::~KCModuleProxy() () from /usr/lib/libKF5KCMUtils.so.5
#41 0x00007f8336c50989 in KCModuleProxy::~KCModuleProxy() () from /usr/lib/libKF5KCMUtils.so.5
#42 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#43 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#44 0x00007f83355c3929 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#45 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#46 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#47 0x00007f833572c009 in QScrollArea::~QScrollArea() () from /usr/lib/libQt5Widgets.so.5
#48 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#49 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#50 0x00007f8335b6151e in ?? () from /usr/lib/libKF5WidgetsAddons.so.5
#51 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#52 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#53 0x00007f8335b659d9 in KPageWidget::~KPageWidget() () from /usr/lib/libKF5WidgetsAddons.so.5
#54 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#55 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#56 0x00007f8336e90349 in ModuleView::~ModuleView() () from /usr/lib/libsystemsettingsview.so.3
#57 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#58 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#59 0x00007f8335703819 in QStackedWidget::~QStackedWidget() () from /usr/lib/libQt5Widgets.so.5
#60 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#61 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#62 0x00007f8335703819 in QStackedWidget::~QStackedWidget() () from /usr/lib/libQt5Widgets.so.5
#63 0x00007f83340c9733 in QObjectPrivate::deleteChildren() () from /usr/lib/libQt5Core.so.5
#64 0x00007f83355c3674 in QWidget::~QWidget() () from /usr/lib/libQt5Widgets.so.5
#65 0x00007f8336994374 in KMainWindow::~KMainWindow() () from /usr/lib/libKF5XmlGui.so.5
#66 0x000000000040eb87 in ?? ()
#67 0x000000000040ebf9 in ?? ()
#68 0x00007f83340cbdc8 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#69 0x00007f83355c7af3 in QWidget::event(QEvent*) () from /usr/lib/libQt5Widgets.so.5
#70 0x00007f83356bd2bb in QMainWindow::event(QEvent*) () from /usr/lib/libQt5Widgets.so.5
#71 0x00007f8336996b5a in KMainWindow::event(QEvent*) () from /usr/lib/libKF5XmlGui.so.5
#72 0x00007f83369e5205 in KXmlGuiWindow::event(QEvent*) () from /usr/lib/libKF5XmlGui.so.5
#73 0x00007f83355838bc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#74 0x00007f833558acb6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#75 0x00007f83340a1d98 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#76 0x00007f83340a438b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#77 0x00007f83340f2573 in ?? () from /usr/lib/libQt5Core.so.5
#78 0x00007f832eb15837 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#79 0x00007f832eb15a68 in ?? () from /usr/lib/libglib-2.0.so.0
#80 0x00007f832eb15b0c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#81 0x00007f83340f297f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#82 0x00007f83340a030a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#83 0x00007f83340a831d in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#84 0x000000000040c05d in ?? ()
#85 0x00007f833372e710 in __libc_start_main () from /lib/libc.so.6
#86 0x000000000040c0b9 in _start ()

Possible duplicates by query: bug 375486, bug 375476, bug 375470, bug 375435, bug 375434.

Reported using DrKonqi