Application: systemsettings5 (5.13.0)

Qt Version: 5.11.0
Frameworks Version: 5.47.0
Operating System: Linux 4.17.1-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
when I open system setting and click on fonts  it crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7b289a2840 (LWP 1328))]

Thread 19 (Thread 0x7f7abb7fe700 (LWP 1374)):
#0  0x00007f7b1f8d6ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7b0ab990a4 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f7b0ab98d98 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f7ab99e4700 (LWP 1350)):
#0  0x00007f7b23fe7ea9 in poll () at /usr/lib/libc.so.6
#1  0x00007f7b1d272523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7b1d27263e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7b24903e64 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f7b248af85c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7b246f8ac9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f7b223f1559 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f7b24702b95 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f7abbfff700 (LWP 1346)):
#0  0x00007f7b23fe7ea9 in poll () at /usr/lib/libc.so.6
#1  0x00007f7b1d272523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7b1d27263e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7b24903e64 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f7b248af85c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7b246f8ac9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f7b24702b95 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f7acd1bb700 (LWP 1345)):
#0  0x00007fff2acb1a57 in  ()
#1  0x00007fff2acb1c5d in clock_gettime ()
#2  0x00007f7b23ffffb6 in clock_gettime () at /usr/lib/libc.so.6
#3  0x00007f7b24903772 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f7b24901f5a in QTimerInfoList::updateCurrentTime() () at /usr/lib/libQt5Core.so.5
#5  0x00007f7b24902556 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/libQt5Core.so.5
#6  0x00007f7b24903bcf in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f7b1d271a49 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#8  0x00007f7b1d27244e in  () at /usr/lib/libglib-2.0.so.0
#9  0x00007f7b1d27263e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#10 0x00007f7b24903e64 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#11 0x00007f7b248af85c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#12 0x00007f7b246f8ac9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#13 0x00007f7b24702b95 in  () at /usr/lib/libQt5Core.so.5
#14 0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#15 0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f7ace385700 (LWP 1343)):
#0  0x00007f7b1f8d6ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7b0ab990a4 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f7b0ab98d98 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f7acefd7700 (LWP 1342)):
#0  0x00007f7b1f8d6ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7b0ab990a4 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f7b0ab98d98 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f7ae4b60700 (LWP 1341)):
#0  0x00007f7b1f8d6ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7b0ab990a4 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f7b0ab98d98 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f7ae5361700 (LWP 1340)):
#0  0x00007f7b1f8d6ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7b0ab990a4 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f7b0ab98d98 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f7ae6f1d700 (LWP 1339)):
#0  0x00007f7b23fe3934 in read () at /usr/lib/libc.so.6
#1  0x00007f7b1d2b7ed1 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7b1d271ff8 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7b1d2724c6 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f7b1d27263e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f7b24903e64 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f7b248af85c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f7b246f8ac9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f7b223f1559 in  () at /usr/lib/libQt5Qml.so.5
#9  0x00007f7b24702b95 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f7af6db2700 (LWP 1337)):
#0  0x00007f7b23fe7ea9 in poll () at /usr/lib/libc.so.6
#1  0x00007f7b1d272523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7b1d27263e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7b24903e64 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f7b248af85c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7b246f8ac9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f7b223f1559 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f7b24702b95 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f7afdffb700 (LWP 1336)):
#0  0x00007f7b1f8d6ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7b0ab990a4 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f7b0ab98d98 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f7afe7fc700 (LWP 1335)):
#0  0x00007f7b1f8d6ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7b0ab990a4 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f7b0ab98d98 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f7afeffd700 (LWP 1334)):
#0  0x00007f7b1f8d6ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7b0ab990a4 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f7b0ab98d98 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f7aff7fe700 (LWP 1333)):
#0  0x00007f7b1f8d6ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7b0ab990a4 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f7b0ab98d98 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f7af77fe700 (LWP 1332)):
#0  0x00007f7b1f8d6ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7b0ab990a4 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f7b0ab98d98 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f7afffff700 (LWP 1331)):
#0  0x00007f7b1f8d6ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7b0ab990a4 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f7b0ab98d98 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f7b05254700 (LWP 1330)):
#0  0x00007f7b1f8d6ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7b0ab990a4 in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007f7b0ab98d98 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f7b1275f700 (LWP 1329)):
#0  0x00007f7b23fe7ea9 in poll () at /usr/lib/libc.so.6
#1  0x00007f7b1d272523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7b1d27263e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7b24903e64 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f7b248af85c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7b246f8ac9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f7b24d53976 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f7b24702b95 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f7b1f8d1075 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f7b23ff253f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f7b289a2840 (LWP 1328)):
[KCrash Handler]
#6  0x00007f7b230061d3 in XAddExtension () at /usr/lib/libX11.so.6
#7  0x00007f7a89d2812f in  () at /usr/lib/libXft.so.2
#8  0x00007f7a89d2863e in XftDefaultHasRender () at /usr/lib/libXft.so.2
#9  0x00007f7a89d28a79 in XftDefaultSubstitute () at /usr/lib/libXft.so.2
#10 0x00007f7a89d2b50f in XftFontMatch () at /usr/lib/libXft.so.2
#11 0x00007f7a89d2b6c5 in XftFontOpen () at /usr/lib/libXft.so.2
#12 0x00007f7a8a5f0042 in KFI::CFcEngine::getFont(int) () at /usr/lib/qt/plugins/kcms/kcm_fonts.so
#13 0x00007f7a8a5f0523 in KFI::CFcEngine::queryFont() () at /usr/lib/qt/plugins/kcms/kcm_fonts.so
#14 0x00007f7a8a5f0d09 in KFI::CFcEngine::getSizes() () at /usr/lib/qt/plugins/kcms/kcm_fonts.so
#15 0x00007f7a8a5f1e02 in KFI::CFcEngine::draw(QString const&, unsigned int, int, QColor const&, QColor const&, int, QString const&) () at /usr/lib/qt/plugins/kcms/kcm_fonts.so
#16 0x00007f7a8a5e956c in  () at /usr/lib/qt/plugins/kcms/kcm_fonts.so
#17 0x00007f7a8a5e9bf0 in  () at /usr/lib/qt/plugins/kcms/kcm_fonts.so
#18 0x00007f7b228702de in QQuickPixmap::load(QQmlEngine*, QUrl const&, QSize const&, QFlags<QQuickPixmap::Option>, QQuickImageProviderOptions const&) () at /usr/lib/libQt5Quick.so.5
#19 0x00007f7b229bf870 in QQuickImageBase::load() () at /usr/lib/libQt5Quick.so.5
#20 0x00007f7b223e467f in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at /usr/lib/libQt5Qml.so.5
#21 0x00007f7b2235cc2b in  () at /usr/lib/libQt5Qml.so.5
#22 0x00007f7b2235d237 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /usr/lib/libQt5Qml.so.5
#23 0x00007f7b22434d07 in  () at /usr/lib/libQt5Qml.so.5
#24 0x00007f7b22434e42 in QQmlDelegateModel::object(int, QQmlIncubator::IncubationMode) () at /usr/lib/libQt5Qml.so.5
#25 0x00007f7b1575aee1 in QQuickComboBox::textAt(int) const () at /usr/lib/libQt5QuickTemplates2.so.5
#26 0x00007f7b1575b09f in  () at /usr/lib/libQt5QuickTemplates2.so.5
#27 0x00007f7b1575b4b0 in  () at /usr/lib/libQt5QuickTemplates2.so.5
#28 0x00007f7b157ae8c6 in  () at /usr/lib/libQt5QuickTemplates2.so.5
#29 0x00007f7b223da226 in  () at /usr/lib/libQt5Qml.so.5
#30 0x00007f7b223daefc in  () at /usr/lib/libQt5Qml.so.5
#31 0x00007f7b223d73fb in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#32 0x00007f7b223ad913 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/libQt5Qml.so.5
#33 0x00007f7b22344104 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib/libQt5Qml.so.5
#34 0x00007f7b248da32f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#35 0x00007f7a8a5ec2f8 in  () at /usr/lib/qt/plugins/kcms/kcm_fonts.so
#36 0x00007f7a8a5ecb96 in  () at /usr/lib/qt/plugins/kcms/kcm_fonts.so
#37 0x00007f7b248db2e2 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#38 0x00007f7b258f050c in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#39 0x00007f7b258b0984 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#40 0x00007f7b258b825b in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#41 0x00007f7b248b0bc9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#42 0x00007f7b248b3c5c in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#43 0x00007f7b24904864 in  () at /usr/lib/libQt5Core.so.5
#44 0x00007f7b1d272368 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#45 0x00007f7b1d2725b1 in  () at /usr/lib/libglib-2.0.so.0
#46 0x00007f7b1d27263e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#47 0x00007f7b24903e49 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#48 0x00007f7b17954f72 in  () at /usr/lib/libQt5WaylandClient.so.5
#49 0x00007f7b248af85c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#50 0x00007f7b248b7b56 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#51 0x0000560598498e5f in  ()
#52 0x00007f7b23f1d06b in __libc_start_main () at /usr/lib/libc.so.6
#53 0x0000560598498eea in _start ()

Reported using DrKonqi