Application: systemsettings5 (5.15.80)
 (Compiled from sources)
Qt Version: 5.12.2
Frameworks Version: 5.56.0
Operating System: Linux 4.19.20-1-MANJARO x86_64
Distribution: "Manjaro Linux"

-- Information about the crash:
Was closing systemsettings, window appeared with no conents, then crashed.

git master as of 14/2/2019

-- Backtrace:
Application: System Settings (systemsettings5), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f073433f400 (LWP 6443))]

Thread 4 (Thread 0x7f071630f700 (LWP 6449)):
#0  0x00007f0731fdc7a4 in read () from /usr/lib/libc.so.6
#1  0x00007f072e34b971 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f072e39c0b0 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007f072e39d4e6 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f072e39d62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f073274c148 in QEventDispatcherGlib::processEvents (this=0x7f0710000b20, flags=...) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f07326e6913 in QEventLoop::processEvents (this=this@entry=0x7f071630ed50, flags=..., flags@entry=...) at /usr/include/c++/8.2.1/bits/atomic_base.h:707
#7  0x00007f07326e6d6b in QEventLoop::exec (this=this@entry=0x7f071630ed50, flags=flags@entry=...) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:122
#8  0x00007f073251c4c6 in QThread::exec (this=this@entry=0x55da6011f260) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:120
#9  0x00007f0734a635e6 in QQmlThreadPrivate::run (this=0x55da6011f260) at /home/david/projects/qt5/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:148
#10 0x00007f073251deb7 in QThreadPrivate::start (arg=0x55da6011f260) at /home/david/projects/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:361
#11 0x00007f073135fa9d in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f0731febb23 in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f072abf7700 (LWP 6445)):
#0  0x00007f0731fdc7a4 in read () from /usr/lib/libc.so.6
#1  0x00007f072e34b971 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f072e39c0b0 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007f072e39d4e6 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f072e39d62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f073274c148 in QEventDispatcherGlib::processEvents (this=0x7f071c000b20, flags=...) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f07326e6913 in QEventLoop::processEvents (this=this@entry=0x7f072abf6d30, flags=..., flags@entry=...) at /usr/include/c++/8.2.1/bits/atomic_base.h:707
#7  0x00007f07326e6d6b in QEventLoop::exec (this=this@entry=0x7f072abf6d30, flags=flags@entry=...) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:122
#8  0x00007f073251c4c6 in QThread::exec (this=this@entry=0x7f0732a7dde0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:120
#9  0x00007f07329e98c2 in QDBusConnectionManager::run (this=0x7f0732a7dde0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at /home/david/projects/qt5/qtbase/src/dbus/qdbusconnection.cpp:178
#10 0x00007f073251deb7 in QThreadPrivate::start (arg=0x7f0732a7dde0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at /home/david/projects/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:361
#11 0x00007f073135fa9d in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f0731febb23 in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f072be07700 (LWP 6444)):
#0  0x00007f0731fe0c21 in poll () from /usr/lib/libc.so.6
#1  0x00007f0730744cf7 in _xcb_conn_wait (c=c@entry=0x55da5f79b9e0, cond=cond@entry=0x55da5f79ba20, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:479
#2  0x00007f07307468fa in xcb_wait_for_event (c=c@entry=0x55da5f79b9e0) at xcb_in.c:697
#3  0x00007f072cc31f2a in QXcbEventQueue::run (this=0x55da5f7a8a50) at /home/david/projects/qt5/qtbase/src/plugins/platforms/xcb/qxcbeventqueue.cpp:228
#4  0x00007f073251deb7 in QThreadPrivate::start (arg=0x55da5f7a8a50) at /home/david/projects/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:361
#5  0x00007f073135fa9d in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007f0731febb23 in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f073433f400 (LWP 6443)):
[KCrash Handler]
#6  0x00007f0731f27d7f in raise () from /usr/lib/libc.so.6
#7  0x00007f0731f12672 in abort () from /usr/lib/libc.so.6
#8  0x00007f0732512284 in qt_message_fatal (context=..., message=...) at /home/david/projects/qt5/qtbase/src/corelib/global/qlogging.cpp:1901
#9  0x00007f0732512ecf in QMessageLogger::fatal (this=this@entry=0x7ffca3348be0, msg=msg@entry=0x7f07327d7a78 "ASSERT: \"%s\" in file %s, line %d") at /home/david/projects/qt5/qtbase/src/corelib/global/qlogging.cpp:887
#10 0x00007f073250b7f2 in qt_assert (assertion=assertion@entry=0x7f0731ee8938 "!context || (QOpenGLContext::currentContext() == context && context->surface() == offscreenSurface)", file=file@entry=0x7f0731ee8520 "/home/david/projects/qt5/qtdeclarative/src/quickwidgets/qquickwidget.cpp", line=line@entry=218) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qlogging.h:91
#11 0x00007f0731ee5d26 in QQuickWidgetPrivate::~QQuickWidgetPrivate (this=0x55da5f912190, __in_chrg=<optimized out>) at ../../include/QtQuick/5.12.2/QtQuick/private/../../../../../../../qt5/qtdeclarative/src/quick/items/qquickitemchangelistener_p.h:123
#12 0x00007f0731ee5daf in QQuickWidgetPrivate::~QQuickWidgetPrivate (this=0x55da5f912190, __in_chrg=<optimized out>) at /home/david/projects/qt5/qtdeclarative/src/quickwidgets/qquickwidget.cpp:208
#13 0x00007f0732722e30 in QScopedPointerDeleter<QObjectData>::cleanup (pointer=<optimized out>) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/tools/qscopedpointer.h:52
#14 QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::~QScopedPointer (this=0x55da5f88a5f8, __in_chrg=<optimized out>) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/tools/qscopedpointer.h:107
#15 QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qobject.cpp:891
#16 0x00007f0733226a30 in QWidget::~QWidget (this=0x55da5f88a5f0, __in_chrg=<optimized out>) at /home/david/projects/qt5/qtbase/src/widgets/kernel/qwidget.cpp:1725
#17 0x00007f0731ee1dd7 in QQuickWidget::~QQuickWidget (this=0x55da5f88a5f0, __in_chrg=<optimized out>) at /home/david/projects/qt5-build/qtbase/include/QtCore/../../../../qt5/qtbase/src/corelib/tools/qsharedpointer_impl.h:167
#18 0x00007f0731ee1e51 in QQuickWidget::~QQuickWidget (this=0x55da5f88a5f0, __in_chrg=<optimized out>) at /home/david/projects/qt5/qtdeclarative/src/quickwidgets/qquickwidget.cpp:547
#19 0x00007f0732721a64 in QObjectPrivate::deleteChildren (this=this@entry=0x55da5fa011e0) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qobject.cpp:2010
#20 0x00007f0733226acf in QWidget::~QWidget (this=0x55da5f9a23c0, __in_chrg=<optimized out>) at /home/david/projects/qt5/qtbase/src/widgets/kernel/qwidget.cpp:1703
#21 0x00007f07218615f5 in FocusHackWidget::~FocusHackWidget (this=0x55da5f9a23c0) at /home/david/projects/kde5/src/kde/workspace/systemsettings/sidebar/SidebarMode.cpp:70
#22 0x00007f0721861639 in FocusHackWidget::~FocusHackWidget (this=0x55da5f9a23c0) at /home/david/projects/kde5/src/kde/workspace/systemsettings/sidebar/SidebarMode.cpp:70
#23 0x00007f0732721a64 in QObjectPrivate::deleteChildren (this=this@entry=0x55da5f87fdb0) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qobject.cpp:2010
#24 0x00007f0733226acf in QWidget::~QWidget (this=0x55da5f86f560, __in_chrg=<optimized out>) at /home/david/projects/qt5/qtbase/src/widgets/kernel/qwidget.cpp:1703
#25 0x00007f07332e4fa0 in QFrame::~QFrame (this=<optimized out>, __in_chrg=<optimized out>) at /home/david/projects/qt5/qtbase/src/widgets/widgets/qframe.cpp:262
#26 0x00007f07333b74ee in QStackedWidget::~QStackedWidget (this=<optimized out>, __in_chrg=<optimized out>) at /home/david/projects/qt5/qtbase/src/widgets/widgets/qstackedwidget.cpp:145
#27 0x00007f07333b7503 in QStackedWidget::~QStackedWidget (this=0x55da5f86f560, __in_chrg=<optimized out>) at /home/david/projects/qt5/qtbase/src/widgets/widgets/qstackedwidget.cpp:145
#28 0x00007f0732721a64 in QObjectPrivate::deleteChildren (this=this@entry=0x55da5f874cf0) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qobject.cpp:2010
#29 0x00007f0733226acf in QWidget::~QWidget (this=0x55da5f811bd0, __in_chrg=<optimized out>) at /home/david/projects/qt5/qtbase/src/widgets/kernel/qwidget.cpp:1703
#30 0x00007f0733352bce in QMainWindow::~QMainWindow (this=<optimized out>, __in_chrg=<optimized out>) at /home/david/projects/qt5/qtbase/src/widgets/widgets/qmainwindow.cpp:377
#31 0x00007f073528bec0 in KMainWindow::~KMainWindow (this=0x55da5f811bd0) at /home/david/projects/kde5/src/frameworks/kxmlgui/src/kmainwindow.cpp:406
#32 0x00007f07352e5c8e in KXmlGuiWindow::~KXmlGuiWindow (this=0x55da5f811bd0, vtt=0x55da5e2e6608 <VTT for SettingsBase+8>) at /home/david/projects/kde5/src/frameworks/kxmlgui/src/kxmlguiwindow.cpp:121
#33 0x000055da5e2c9e0d in SettingsBase::~SettingsBase (this=0x55da5f811bd0, vtt=0x55da5e2e6600 <VTT for SettingsBase>) at /home/david/projects/kde5/src/kde/workspace/systemsettings/app/SettingsBase.cpp:77
#34 0x000055da5e2c9e40 in SettingsBase::~SettingsBase (this=0x55da5f811bd0) at /home/david/projects/kde5/src/kde/workspace/systemsettings/app/SettingsBase.cpp:75
#35 0x000055da5e2c9ed9 in SettingsBase::~SettingsBase (this=0x55da5f811bd0) at /home/david/projects/kde5/src/kde/workspace/systemsettings/app/SettingsBase.cpp:75
#36 0x00007f073271a2b9 in qDeleteInEventHandler (o=o@entry=0x55da5f811bd0) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qobject.cpp:4647
#37 0x00007f073271c080 in QObject::event (this=this@entry=0x55da5f811bd0, e=e@entry=0x55da5fcfee50) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qobject.cpp:1251
#38 0x00007f073322bf5c in QWidget::event (this=this@entry=0x55da5f811bd0, event=event@entry=0x55da5fcfee50) at /home/david/projects/qt5/qtbase/src/widgets/kernel/qwidget.cpp:9380
#39 0x00007f0733354772 in QMainWindow::event (this=0x55da5f811bd0, event=0x55da5fcfee50) at /home/david/projects/qt5/qtbase/src/widgets/widgets/qmainwindow.cpp:1339
#40 0x00007f073528e706 in KMainWindow::event (this=0x55da5f811bd0, ev=0x55da5fcfee50) at /home/david/projects/kde5/src/frameworks/kxmlgui/src/kmainwindow.cpp:877
#41 0x00007f07352e5e0f in KXmlGuiWindow::event (this=0x55da5f811bd0, ev=0x55da5fcfee50) at /home/david/projects/kde5/src/frameworks/kxmlgui/src/kxmlguiwindow.cpp:125
#42 0x00007f07331e1ead in QApplicationPrivate::notify_helper (this=this@entry=0x55da5f788b80, receiver=receiver@entry=0x55da5f811bd0, e=e@entry=0x55da5fcfee50) at /home/david/projects/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3736
#43 0x00007f07331eb88b in QApplication::notify (this=0x7ffca3349c40, receiver=0x55da5f811bd0, e=0x55da5fcfee50) at /home/david/projects/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3687
#44 0x00007f07326e8a67 in QCoreApplication::notifyInternal2 (receiver=0x55da5f811bd0, event=0x55da5fcfee50) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1060
#45 0x00007f07326e8cc2 in QCoreApplication::sendEvent (receiver=receiver@entry=0x55da5f811bd0, event=event@entry=0x55da5fcfee50) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1450
#46 0x00007f07326ee793 in QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55da5f77f660) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1799
#47 0x00007f07326eee18 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1653
#48 0x00007f073274c824 in postEventSourceDispatch (s=0x55da5f7de3b0) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:276
#49 0x00007f072e39ba2f in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#50 0x00007f072e39d5e9 in ?? () from /usr/lib/libglib-2.0.so.0
#51 0x00007f072e39d62e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#52 0x00007f073274c12e in QEventDispatcherGlib::processEvents (this=0x55da5f7ef4c0, flags=...) at /home/david/projects/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:422
#53 0x00007f072cc3390a in QXcbGlibEventDispatcher::processEvents (this=<optimized out>, flags=...) at /home/david/projects/qt5/qtbase/src/plugins/platforms/xcb/qxcbeventdispatcher.cpp:143
#54 0x00007f07326e6913 in QEventLoop::processEvents (this=this@entry=0x7ffca33499f0, flags=..., flags@entry=...) at /usr/include/c++/8.2.1/bits/atomic_base.h:707
#55 0x00007f07326e6d6b in QEventLoop::exec (this=this@entry=0x7ffca33499f0, flags=flags@entry=...) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:122
#56 0x00007f07326f0ec4 in QCoreApplication::exec () at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:120
#57 0x00007f0732b9d6ec in QGuiApplication::exec () at /home/david/projects/qt5/qtbase/src/gui/kernel/qguiapplication.cpp:1779
#58 0x00007f07331e1e1b in QApplication::exec () at /home/david/projects/qt5/qtbase/src/widgets/kernel/qapplication.cpp:2893
#59 0x000055da5e2d8ae5 in main (argc=1, argv=0x7ffca3349d68) at /home/david/projects/kde5/src/kde/workspace/systemsettings/app/main.cpp:71
[Inferior 1 (process 6443) detached]

Possible duplicates by query: bug 387444.

Reported using DrKonqi