Application: plasma-discover (5.12.5)

Qt Version: 5.10.1
Frameworks Version: 5.44.0
Operating System: Linux 4.16.7-300.fc28.x86_64 x86_64
Distribution: "Fedora release 28 (Twenty Eight)"

-- Information about the crash:
- What I was doing when the application crashed: First time it crashed while installing kdenlive, now it crashes every time.

- Unusual behavior I noticed: It'll crash as soon as I click "Installed, applications, etc. but not settings"

- Custom settings of the application:

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe5f50b1e00 (LWP 4932))]

Thread 8 (Thread 0x7fe5b1973700 (LWP 4941)):
#0  0x00007fe5fea68929 in poll () from /lib64/libc.so.6
#1  0x00007fe5f84dab06 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007fe5f84dac30 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fe5ff934c2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007fe5ff8e312b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007fe5ff7319c6 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007fe5ff73611d in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#7  0x00007fe5fcde1564 in start_thread () from /lib64/libpthread.so.0
#8  0x00007fe5fea7331f in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7fe5c58ab700 (LWP 4938)):
#0  0x00007fe5f84da443 in g_main_context_check () from /lib64/libglib-2.0.so.0
#1  0x00007fe5f84daab0 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007fe5f84dac30 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fe5ff934c2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007fe5ff8e312b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007fe5ff7319c6 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007fe5ff73611d in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#7  0x00007fe5fcde1564 in start_thread () from /lib64/libpthread.so.0
#8  0x00007fe5fea7331f in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fe5c60ac700 (LWP 4937)):
#0  0x00007fe5fea64374 in read () from /lib64/libc.so.6
#1  0x00007fe5f851fdd0 in g_wakeup_acknowledge () from /lib64/libglib-2.0.so.0
#2  0x00007fe5f84da5fb in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007fe5f84daab0 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#4  0x00007fe5f84dac30 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007fe5ff934c2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007fe5ff8e312b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#7  0x00007fe5ff7319c6 in QThread::exec() () from /lib64/libQt5Core.so.5
#8  0x00007fe5ff73611d in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#9  0x00007fe5fcde1564 in start_thread () from /lib64/libpthread.so.0
#10 0x00007fe5fea7331f in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fe5cea95700 (LWP 4936)):
#0  0x00007fe5f84d9f8c in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#1  0x00007fe5f84daa3b in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007fe5f84dac30 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fe5ff934c2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007fe5ff8e312b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007fe5ff7319c6 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007fe6032e9a1a in QQuickPixmapReader::run() () from /lib64/libQt5Quick.so.5
#7  0x00007fe5ff73611d in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007fe5fcde1564 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fe5fea7331f in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fe5d7fff700 (LWP 4935)):
#0  0x00007fe5f8521218 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x00007fe5f84da519 in g_main_context_check () from /lib64/libglib-2.0.so.0
#2  0x00007fe5f84daab0 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007fe5f84dac30 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007fe5ff934c2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007fe5ff8e312b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007fe5ff7319c6 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007fe6002ac339 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007fe5ff73611d in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#9  0x00007fe5fcde1564 in start_thread () from /lib64/libpthread.so.0
#10 0x00007fe5fea7331f in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fe5dd3a3700 (LWP 4934)):
#0  0x00007fe5fea64374 in read () from /lib64/libc.so.6
#1  0x00007fe5f851fdd0 in g_wakeup_acknowledge () from /lib64/libglib-2.0.so.0
#2  0x00007fe5f84da5fb in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007fe5f84daab0 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#4  0x00007fe5f84dac30 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007fe5ff934c2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007fe5ff8e312b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#7  0x00007fe5ff7319c6 in QThread::exec() () from /lib64/libQt5Core.so.5
#8  0x00007fe60401e299 in QDBusConnectionManager::run() () from /lib64/libQt5DBus.so.5
#9  0x00007fe5ff73611d in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#10 0x00007fe5fcde1564 in start_thread () from /lib64/libpthread.so.0
#11 0x00007fe5fea7331f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fe5e5dd9700 (LWP 4933)):
#0  0x00007fe5fea74637 in recvmsg () from /lib64/libc.so.6
#1  0x00007fe5f7e621ac in _xcb_in_read () from /lib64/libxcb.so.1
#2  0x00007fe5f7e60305 in _xcb_conn_wait () from /lib64/libxcb.so.1
#3  0x00007fe5f7e61caa in xcb_wait_for_event () from /lib64/libxcb.so.1
#4  0x00007fe5e87874d9 in QXcbEventReader::run() () from /lib64/libQt5XcbQpa.so.5
#5  0x00007fe5ff73611d in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#6  0x00007fe5fcde1564 in start_thread () from /lib64/libpthread.so.0
#7  0x00007fe5fea7331f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fe5f50b1e00 (LWP 4932)):
[KCrash Handler]
#6  0x00007fe5b7dde36d in AppStream::Component::name() const () from /lib64/libAppStreamQt.so.2
#7  0x00007fe5c426cb42 in ?? () from /usr/lib64/qt5/plugins/discover/packagekit-backend.so
#8  0x00007fe602f7fd8d in AbstractResource::nameSortKey() () from /usr/lib64/plasma-discover/libDiscoverCommon.so
#9  0x00007fe602f72cc5 in ResourcesProxyModel::lessThan(AbstractResource*, AbstractResource*) const () from /usr/lib64/plasma-discover/libDiscoverCommon.so
#10 0x00007fe602f72f35 in ?? () from /usr/lib64/plasma-discover/libDiscoverCommon.so
#11 0x00007fe602f76829 in ResourcesProxyModel::addResources(QVector<AbstractResource*> const&) () from /usr/lib64/plasma-discover/libDiscoverCommon.so
#12 0x00007fe5ff90cde3 in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#13 0x00007fe602f8f376 in ResultsStream::resourcesFound(QVector<AbstractResource*> const&) () from /usr/lib64/plasma-discover/libDiscoverCommon.so
#14 0x00007fe602f6e99c in AggregatedResultsStream::emitResults() () from /usr/lib64/plasma-discover/libDiscoverCommon.so
#15 0x00007fe602f6e9d9 in AggregatedResultsStream::clear() () from /usr/lib64/plasma-discover/libDiscoverCommon.so
#16 0x00007fe602f6fd87 in AggregatedResultsStream::destruction(QObject*) () from /usr/lib64/plasma-discover/libDiscoverCommon.so
#17 0x00007fe5ff90cde3 in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#18 0x00007fe5ff90d413 in QObject::destroyed(QObject*) () from /lib64/libQt5Core.so.5
#19 0x00007fe5ff91444f in QObject::~QObject() () from /lib64/libQt5Core.so.5
#20 0x00007fe602f7ec8d in ResultsStream::~ResultsStream() () from /usr/lib64/plasma-discover/libDiscoverCommon.so
#21 0x00007fe5ff90da48 in QObject::event(QEvent*) () from /lib64/libQt5Core.so.5
#22 0x00007fe60174ee95 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#23 0x00007fe60175683a in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#24 0x00007fe5ff8e4376 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#25 0x00007fe5ff8e709b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt5Core.so.5
#26 0x00007fe5ff934ec7 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5Core.so.5
#27 0x00007fe5f84da7cd in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#28 0x00007fe5f84dab98 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#29 0x00007fe5f84dac30 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#30 0x00007fe5ff934c13 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#31 0x00007fe5e8815065 in QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5XcbQpa.so.5
#32 0x00007fe5ff8e312b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#33 0x00007fe5ff8eb5b6 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#34 0x0000561888ed3e87 in ?? ()
#35 0x00007fe5fe99c1bb in __libc_start_main () from /lib64/libc.so.6
#36 0x0000561888ed442a in _start ()

Reported using DrKonqi