https://bugs.kde.org/show_bug.cgi?id=369453

            Bug ID: 369453
           Summary: systems settings crash
           Product: systemsettings
           Version: 5.7.95
          Platform: Mageia RPMs
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: plasma-b...@kde.org
          Reporter: vpisc...@pcug.org.au

Application: systemsettings5 (5.7.95)

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.7.3-desktop-1.mga6 x86_64
Distribution: "Mageia 6"

-- Information about the crash:
- What I was doing when the application crashed: 
Systemsettings -> application style -> windows decorations (crashes when
selected) always reproducable. Nothing but desktop applications running at the
time ie. chrome / thunderbird / dolphin

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9bacb62800 (LWP 7068))]

Thread 8 (Thread 0x7f9b737ff700 (LWP 7372)):
#0  0x00007f9ba5ee7bb6 in g_source_iter_next () at /lib64/libglib-2.0.so.0
#1  0x00007f9ba5ee9fab in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f9ba5eea983 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#3  0x00007f9ba5eeab5c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#4  0x00007f9ba9b233ab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#5  0x00007f9ba9acec9a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#6  0x00007f9ba990837c in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f9ba827a805 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007f9ba990cfb9 in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#9  0x00007f9ba641866d in start_thread () at /lib64/libpthread.so.0
#10 0x00007f9ba921eded in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f9b727f8700 (LWP 7243)):
#0  0x00007f9ba5eea4a8 in g_main_context_check () at /lib64/libglib-2.0.so.0
#1  0x00007f9ba5eea9f8 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f9ba5eeab5c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f9ba9b233ab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f9ba9acec9a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f9ba990837c in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f9ba827a805 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f9ba990cfb9 in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#8  0x00007f9ba641866d in start_thread () at /lib64/libpthread.so.0
#9  0x00007f9ba921eded in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f9b7ccd0700 (LWP 7172)):
#0  0x00007f9ba9212f9d in poll () at /lib64/libc.so.6
#1  0x00007f9ba5eeaa54 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f9ba5eeab5c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f9ba9b233ab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f9ba9acec9a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f9ba990837c in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f9ba827a805 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f9ba990cfb9 in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#8  0x00007f9ba641866d in start_thread () at /lib64/libpthread.so.0
#9  0x00007f9ba921eded in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f9b84dbf700 (LWP 7143)):
#0  0x00007f9ba91e679d in nanosleep () at /lib64/libc.so.6
#1  0x00007f9ba9215604 in usleep () at /lib64/libc.so.6
#2  0x00007f9b8b231f20 in  () at /usr/lib/x86_64-linux-gnu/dri/amdgpu_dri.so
#3  0x00007f9b8a982f22 in  () at /usr/lib/x86_64-linux-gnu/dri/amdgpu_dri.so
#4  0x00007f9b8a982f75 in  () at /usr/lib/x86_64-linux-gnu/dri/amdgpu_dri.so
#5  0x00007f9ba641866d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f9ba921eded in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f9b87290700 (LWP 7142)):
#0  0x00007f9ba9212f9d in poll () at /lib64/libc.so.6
#1  0x00007f9ba5eeaa54 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f9ba5eeab5c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f9ba9b233ab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f9ba9acec9a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f9ba990837c in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f9ba827a805 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f9ba990cfb9 in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#8  0x00007f9ba641866d in start_thread () at /lib64/libpthread.so.0
#9  0x00007f9ba921eded in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f9b93460700 (LWP 7070)):
#0  0x00007ffd88bbbb16 in clock_gettime ()
#1  0x00007f9ba922c996 in clock_gettime () at /lib64/libc.so.6
#2  0x00007f9ba99b4346 in qt_gettime() () at /lib64/libQt5Core.so.5
#3  0x00007f9ba9b21019 in QTimerInfoList::updateCurrentTime() () at
/lib64/libQt5Core.so.5
#4  0x00007f9ba9b21565 in QTimerInfoList::timerWait(timespec&) () at
/lib64/libQt5Core.so.5
#5  0x00007f9ba9b228de in timerSourcePrepare(_GSource*, int*) () at
/lib64/libQt5Core.so.5
#6  0x00007f9ba5eea00d in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#7  0x00007f9ba5eea983 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#8  0x00007f9ba5eeab5c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#9  0x00007f9ba9b233ab in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#10 0x00007f9ba9acec9a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#11 0x00007f9ba990837c in QThread::exec() () at /lib64/libQt5Core.so.5
#12 0x00007f9baccce615 in QDBusConnectionManager::run() () at
/lib64/libQt5DBus.so.5
#13 0x00007f9ba990cfb9 in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#14 0x00007f9ba641866d in start_thread () at /lib64/libpthread.so.0
#15 0x00007f9ba921eded in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f9b9b9c0700 (LWP 7069)):
#0  0x00007f9ba9212f9d in poll () at /lib64/libc.so.6
#1  0x00007f9ba6ca5902 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f9ba6ca7657 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f9b9df2a2b9 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f9ba990cfb9 in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#5  0x00007f9ba641866d in start_thread () at /lib64/libpthread.so.0
#6  0x00007f9ba921eded in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f9bacb62800 (LWP 7068)):
[KCrash Handler]
#6  0x00007f9ba915c828 in raise () at /lib64/libc.so.6
#7  0x00007f9ba915df3a in abort () at /lib64/libc.so.6
#8  0x00007f9ba919b3ea in  () at /lib64/libc.so.6
#9  0x00007f9ba91a5f1e in _int_malloc () at /lib64/libc.so.6
#10 0x00007f9ba91a7a19 in malloc () at /lib64/libc.so.6
#11 0x00007f9ba956eeb8 in operator new(unsigned long) () at
/lib64/libstdc++.so.6
#12 0x00007f9ba9b03502 in QObject::QObject(QObject*) () at
/lib64/libQt5Core.so.5
#13 0x00007f9ba9ff5694 in KCoreConfigSkeleton::KCoreConfigSkeleton(QString
const&, QObject*) () at /lib64/libKF5ConfigCore.so.5
#14 0x00007f9bab8b6db9 in KConfigSkeleton::KConfigSkeleton(QString const&,
QObject*) () at /lib64/libKF5ConfigGui.so.5
#15 0x00007f9b714fe955 in Oxygen::InternalSettings::InternalSettings() () at
/usr/lib64/qt5/plugins/org.kde.kdecoration2/oxygendecoration.so
#16 0x00007f9b714fc65d in Oxygen::SettingsProvider::reconfigure() () at
/usr/lib64/qt5/plugins/org.kde.kdecoration2/oxygendecoration.so
#17 0x00007f9b714fc7ed in Oxygen::SettingsProvider::SettingsProvider() () at
/usr/lib64/qt5/plugins/org.kde.kdecoration2/oxygendecoration.so
#18 0x00007f9b714fc846 in Oxygen::SettingsProvider::self() () at
/usr/lib64/qt5/plugins/org.kde.kdecoration2/oxygendecoration.so
#19 0x00007f9b714f68e5 in Oxygen::Decoration::reconfigure() () at
/usr/lib64/qt5/plugins/org.kde.kdecoration2/oxygendecoration.so
#20 0x00007f9b714f81e4 in Oxygen::Decoration::init() () at
/usr/lib64/qt5/plugins/org.kde.kdecoration2/oxygendecoration.so
#21 0x00007f9b7f3191c5 in
KDecoration2::Preview::PreviewItem::componentComplete() () at
/usr/lib64/qt5/qml/org/kde/kwin/private/kdecoration/libkdecorationprivatedeclarative.so
#22 0x00007f9ba8271092 in
QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at
/lib64/libQt5Qml.so.5
#23 0x00007f9ba82065aa in
QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) () at
/lib64/libQt5Qml.so.5
#24 0x00007f9ba8207075 in QQmlEnginePrivate::incubate(QQmlIncubator&,
QQmlContextData*) () at /lib64/libQt5Qml.so.5
#25 0x00007f9ba82a127f in
QQmlDelegateModelPrivate::object(QQmlListCompositor::Group, int, bool) () at
/lib64/libQt5Qml.so.5
#26 0x00007f9ba82a1575 in QQmlDelegateModel::object(int, bool) () at
/lib64/libQt5Qml.so.5
#27 0x00007f9ba8614b0f in QQuickItemViewPrivate::createItem(int, bool) () at
/lib64/libQt5Quick.so.5
#28 0x00007f9ba85d1cfa in QQuickGridViewPrivate::addVisibleItems(double,
double, double, double, bool) () at /lib64/libQt5Quick.so.5
#29 0x00007f9ba8613519 in QQuickItemViewPrivate::refill(double, double) () at
/lib64/libQt5Quick.so.5
#30 0x00007f9ba86179b4 in QQuickItemViewPrivate::regenerate(bool) () at
/lib64/libQt5Quick.so.5
#31 0x00007f9ba8617a94 in QQuickItemView::modelUpdated(QQmlChangeSet const&,
bool) () at /lib64/libQt5Quick.so.5
#32 0x00007f9ba86909c0 in QQuickItemView::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**) () at /lib64/libQt5Quick.so.5
#33 0x00007f9ba9afc069 in QMetaObject::activate(QObject*, int, int, void**) ()
at /lib64/libQt5Core.so.5
#34 0x00007f9ba82c5ec6 in QQmlInstanceModel::modelUpdated(QQmlChangeSet const&,
bool) () at /lib64/libQt5Qml.so.5
#35 0x00007f9ba82968e8 in
QQmlDelegateModelPrivate::emitModelUpdated(QQmlChangeSet const&, bool) () at
/lib64/libQt5Qml.so.5
#36 0x00007f9ba8298515 in QQmlDelegateModelGroupPrivate::emitModelUpdated(bool)
() at /lib64/libQt5Qml.so.5
#37 0x00007f9ba829af40 in QQmlDelegateModelPrivate::emitChanges() () at
/lib64/libQt5Qml.so.5
#38 0x00007f9ba82a07b6 in QQmlDelegateModel::_q_modelReset() () at
/lib64/libQt5Qml.so.5
#39 0x00007f9ba82c2a05 in QQmlDelegateModel::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**) () at /lib64/libQt5Qml.so.5
#40 0x00007f9ba82c3148 in QQmlDelegateModel::qt_metacall(QMetaObject::Call,
int, void**) () at /lib64/libQt5Qml.so.5
#41 0x00007f9ba9afbda0 in QMetaObject::activate(QObject*, int, int, void**) ()
at /lib64/libQt5Core.so.5
#42 0x00007f9ba9a764ac in QAbstractItemModel::endResetModel() () at
/lib64/libQt5Core.so.5
#43 0x00007f9ba9a9d4dd in QSortFilterProxyModelPrivate::_q_sourceReset() () at
/lib64/libQt5Core.so.5
#44 0x00007f9ba9aa1371 in QSortFilterProxyModel::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**) () at /lib64/libQt5Core.so.5
#45 0x00007f9ba9afc069 in QMetaObject::activate(QObject*, int, int, void**) ()
at /lib64/libQt5Core.so.5
#46 0x00007f9ba9a764ac in QAbstractItemModel::endResetModel() () at
/lib64/libQt5Core.so.5
#47 0x00007f9b7f97f485 in KDecoration2::Configuration::DecorationsModel::init()
() at /usr/lib64/qt5/plugins/kcm_kwindecoration.so
#48 0x00007f9ba9afcbca in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#49 0x00007f9bab04590c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib64/libQt5Widgets.so.5
#50 0x00007f9bab04aa76 in QApplication::notify(QObject*, QEvent*) () at
/lib64/libQt5Widgets.so.5
#51 0x00007f9ba9ad0e18 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib64/libQt5Core.so.5
#52 0x00007f9ba9ad2c3b in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /lib64/libQt5Core.so.5
#53 0x00007f9ba9b22f73 in postEventSourceDispatch(_GSource*, int (*)(void*),
void*) () at /lib64/libQt5Core.so.5
#54 0x00007f9ba5eea887 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#55 0x00007f9ba5eeaab8 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#56 0x00007f9ba5eeab5c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#57 0x00007f9ba9b23386 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#58 0x00007f9ba9acec9a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#59 0x00007f9ba9ad7001 in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#60 0x000000000040bf7e in main ()

Reported using DrKonqi

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