Bug 469204

Summary: systemsettings crashes immediately after selecting Appearance -> Window Decorations.
Product: [Applications] systemsettings Reporter: Olexiy <tigre_olexiy>
Component: generalAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED DOWNSTREAM    
Severity: crash CC: laethenglish
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.27.3   
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description Olexiy 2023-04-30 19:47:48 UTC 
Application: systemsettings (5.27.3)

Qt Version: 5.15.9
Frameworks Version: 5.105.0
Operating System: Linux 6.2.12-1-default x86_64
Windowing System: X11
Distribution: "openSUSE Tumbleweed"
DrKonqi: 5.27.4 [KCrashBackend]

-- Information about the crash:
The item  'Window Decorations' presented two times, selection any of them evoke the application crash. 
Also, after the last upgrade, all applications are located in all virtual desktops, it is impossible to select the virtual desktop for any applications. 
Each item in the fllowing list, 'Window behaviour', 'Task switcher', 'Kwin scripts', appears twice.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault

[KCrash Handler]
#4  0x00007f1a45c3b34b in Chameleon::updateTheme() (this=this@entry=0x55ae0f074db0) at /usr/src/debug/deepin-kwin-5.25.0/src/plugins/kdecorations/deepin-chameleon/chameleon.cpp:463
#5  0x00007f1a45c3dfc1 in Chameleon::init() (this=0x55ae0f074db0) at /usr/src/debug/deepin-kwin-5.25.0/src/plugins/kdecorations/deepin-chameleon/chameleon.cpp:66
#6  0x00007f1a465dbd56 in KDecoration2::Preview::PreviewItem::componentComplete() (this=0x55ae0f06b770) at /usr/src/debug/kwin-5.27.4/src/kcms/decoration/declarative-plugin/previewitem.cpp:57
#7  KDecoration2::Preview::PreviewItem::componentComplete() (this=0x55ae0f06b770) at /usr/src/debug/kwin-5.27.4/src/kcms/decoration/declarative-plugin/previewitem.cpp:51
#8  0x00007f1a8c110f03 in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) (this=0x55ae0f929070, interrupt=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.9+kde23/src/qml/qml/qqmlobjectcreator.cpp:1413
#9  0x00007f1a8c0a6e72 in QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) (this=0x55ae0f88ec80, i=<optimized out>) at /usr/include/qt5/QtCore/qscopedpointer.h:116
#10 0x00007f1a8c0a72ed in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) (this=0x55ae0d9f72f0, i=<optimized out>, forContext=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.9+kde23/src/qml/qml/qqmlincubator.cpp:89
#11 0x00007f1a8b3c29cf in QQmlDelegateModelPrivate::object(QQmlListCompositor::Group, int, QQmlIncubator::IncubationMode) (this=0x55ae0de58f70, group=QQmlListCompositor::Default, index=1, incubationMode=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.9+kde23/src/qmlmodels/qqmldelegatemodel.cpp:1324
#12 0x00007f1a8c744b54 in QQuickItemViewPrivate::createItem(int, QQmlIncubator::IncubationMode) (this=this@entry=0x55ae0ed2d9f0, modelIndex=modelIndex@entry=1, incubationMode=incubationMode@entry=QQmlIncubator::AsynchronousIfNested) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.9+kde23/src/quick/items/qquickitemview.cpp:2351
#13 0x00007f1a8c73756d in QQuickGridViewPrivate::addVisibleItems(double, double, double, double, bool) (this=0x55ae0ed2d9f0, fillFrom=-0, fillTo=508, bufferFrom=<optimized out>, bufferTo=<optimized out>, doBuffer=false) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.9+kde23/src/quick/items/qquickgridview.cpp:520
#14 0x00007f1a8c745b2b in QQuickItemViewPrivate::refill(double, double) (this=0x55ae0ed2d9f0, from=-0, to=508) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.9+kde23/src/quick/items/qquickitemview.cpp:1801
#15 0x00007f1a8c748d59 in QQuickItemViewPrivate::regenerate(bool) (this=0x55ae0ed2d9f0, orientationChanged=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.9+kde23/src/quick/items/qquickitemview.cpp:1848
#16 0x00007f1a8c74908a in QQuickItemViewPrivate::regenerate(bool) (orientationChanged=false, this=0x55ae0ed2d9f0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.9+kde23/src/quick/items/qquickitemview.cpp:1271
#17 QQuickItemView::modelUpdated(QQmlChangeSet const&, bool) (this=0x55ae0ddd8600, changeSet=<optimized out>, reset=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.9+kde23/src/quick/items/qquickitemview.cpp:1247
#18 0x00007f1a8e5251d3 in doActivate<false>(QObject*, int, void**) (sender=0x55ae0d726620, signal_index=4, argv=0x7ffce53912e0) at kernel/qobject.cpp:3935
#19 0x00007f1a8e51de2f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=<optimized out>, m=m@entry=0x7f1a8b3f6c60 <QQmlInstanceModel::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffce53912e0) at kernel/qobject.cpp:3983
#20 0x00007f1a8b3966b6 in QQmlInstanceModel::modelUpdated(QQmlChangeSet const&, bool) (this=<optimized out>, _t1=<optimized out>, _t2=<optimized out>) at .moc/moc_qqmlobjectmodel_p.cpp:263
#21 0x00007f1a8b3b66e8 in non-virtual thunk to QQmlDelegateModelPrivate::emitModelUpdated(QQmlChangeSet const&, bool) () at /usr/src/debug/qtdeclarative-everywhere-src-5.15.9+kde23/src/qmlmodels/qqmldelegatemodel_p_p.h:333
#22 0x00007f1a8b3bd3da in QQmlDelegateModelGroupPrivate::emitModelUpdated(bool) (this=0x55ae0dfe3d10, reset=reset@entry=true) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.9+kde23/src/qmlmodels/qqmldelegatemodel.cpp:2770
#23 0x00007f1a8b3bd7f8 in QQmlDelegateModelPrivate::emitChanges() (this=0x55ae0de58f70) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.9+kde23/src/qmlmodels/qqmldelegatemodel.cpp:1884
#24 0x00007f1a8b3c84b2 in QQmlDelegateModel::_q_modelReset() (this=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.9+kde23/src/qmlmodels/qqmldelegatemodel.cpp:1939
#25 0x00007f1a8b3c90a3 in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) (this=0x55ae0d726620, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0x7ffce5392570) at .moc/moc_qqmldelegatemodel_p.cpp:371
#26 0x00007f1a8e525124 in doActivate<false>(QObject*, int, void**) (sender=0x55ae0f9325e0, signal_index=21, argv=0x7ffce5392570) at kernel/qobject.cpp:3949
#27 0x00007f1a8e51de2f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x55ae0f9325e0, m=m@entry=0x7f1a8e7c4d40 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=18, argv=argv@entry=0x7ffce5392570) at kernel/qobject.cpp:3983
#28 0x00007f1a8e485c0d in QAbstractItemModel::modelReset(QAbstractItemModel::QPrivateSignal) (this=this@entry=0x55ae0f9325e0, _t1=...) at .moc/moc_qabstractitemmodel.cpp:648
#29 0x00007f1a8e487e8b in QAbstractItemModel::endResetModel() (this=this@entry=0x55ae0f9325e0) at itemmodels/qabstractitemmodel.cpp:3302
#30 0x00007f1a8e4bf726 in QSortFilterProxyModelPrivate::_q_sourceReset() (this=0x55ae0dd36060) at itemmodels/qsortfilterproxymodel.cpp:1607
#31 0x00007f1a8e5251d3 in doActivate<false>(QObject*, int, void**) (sender=0x55ae0f910040, signal_index=21, argv=0x7ffce53926d0) at kernel/qobject.cpp:3935
#32 0x00007f1a8e51de2f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x55ae0f910040, m=m@entry=0x7f1a8e7c4d40 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=18, argv=argv@entry=0x7ffce53926d0) at kernel/qobject.cpp:3983
#33 0x00007f1a8e485c0d in QAbstractItemModel::modelReset(QAbstractItemModel::QPrivateSignal) (this=this@entry=0x55ae0f910040, _t1=...) at .moc/moc_qabstractitemmodel.cpp:648
#34 0x00007f1a8e487e8b in QAbstractItemModel::endResetModel() (this=this@entry=0x55ae0f910040) at itemmodels/qabstractitemmodel.cpp:3302
#35 0x00007f1a66e1bed1 in KDecoration2::Configuration::DecorationsModel::init() (this=0x55ae0f910040) at /usr/src/debug/deepin-kwin-5.25.0/src/kcmkwin/kwindecoration/decorationmodel.cpp:155
#36 0x00007f1a8e518c50 in QObject::event(QEvent*) (this=0x55ae0f910040, e=0x55ae0d93fc50) at kernel/qobject.cpp:1347
#37 0x00007f1a8f1a51ae in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x55ae0f910040, e=0x55ae0d93fc50) at kernel/qapplication.cpp:3640
#38 0x00007f1a8e4ec978 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55ae0f910040, event=0x55ae0d93fc50) at kernel/qcoreapplication.cpp:1064
#39 0x00007f1a8e4eff71 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=0x0, event_type=0, data=0x55ae0d201690) at kernel/qcoreapplication.cpp:1821
#40 0x00007f1a8e546713 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x55ae0d2dddc0) at kernel/qeventdispatcher_glib.cpp:277
#41 0x00007f1a8cb168d8 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#42 0x00007f1a8cb16ce8 in  () at /lib64/libglib-2.0.so.0
#43 0x00007f1a8cb16d7c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#44 0x00007f1a8e545f26 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55ae0d2ebc70, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#45 0x00007f1a8e4eb40b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffce5392c90, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#46 0x00007f1a8e4f38a0 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#47 0x000055ae0b1e205c in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/systemsettings-5.27.4/app/main.cpp:188
[Inferior 1 (process 14945) detached]

Reported using DrKonqi
Comment 1 Antonio Rojas 2023-04-30 21:47:43 UTC 
The crash is in the Deepin plugin, please report this to deepin
Comment 2 laethenglish 2023-10-17 22:55:12 UTC 
Created attachment 162388 [details]
New crash information added by DrKonqi

systemsettings (5.27.8) using Qt 5.15.11

Problem:
System Settings crashes when navigating to Appearance -> Window Decorations

Steps to Reproduce:
- Open System Settings
- Navigate to "Appearance"
- Navigate to "Window Decorations"
- System Settings crashes

Expected Behavior:
System Settings does not crash.

-- Backtrace (Reduced):
#7  0x00007fbdfb4a4901 in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at /usr/lib/libQt5Qml.so.5
#8  0x00007fbdfb450667 in QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) () at /usr/lib/libQt5Qml.so.5
#9  0x00007fbdfb451016 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /usr/lib/libQt5Qml.so.5
[...]
#15 0x00007fbdfbaf90b2 in QQuickItemView::modelUpdated(QQmlChangeSet const&, bool) () at /usr/lib/libQt5Quick.so.5
[...]
#17 0x00007fbdf8858a9b in QQmlInstanceModel::modelUpdated(QQmlChangeSet const&, bool) () at /usr/lib/libQt5QmlModels.so.5