Application: plasma-discover (5.14.5)

Qt Version: 5.11.3
Frameworks Version: 5.54.0
Operating System: Linux 4.19.0-5-amd64 x86_64
Distribution: PureOS

-- Information about the crash:
- What I was doing when the application crashed:I opened Discover from the application laucher in Plasma,typed "KDE" into search bar, the Discover shows me the expected results first, then I randomly clicked on the apps or scrolled(I did this to try to reproduce the crash and succeeded) the list to the bottom.Then all the "software" related results disappeared, remaining are the "themes","iconpacks".etc. Then I moved back to the initial "app recommend(I guess)"page,only to find the only app remains there is "Blender"with out it`s own icon. Looking into the "applications" category, I find all the apps are gone.When I restarted Discover,everything backs to normal.Such occation happens almost everytime when I type in some words like KDE,root,plasma,etc.

-Additional comment by Parabola(Xeon):I have to go to a boarding school for months,you can email me but don`t expect reply before the end of the month.Sorry for my broken English. :)

The crash can be reproduced every time.

-- Backtrace:
Application: 发现者 (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7febd8ca1d80 (LWP 15238))]

Thread 12 (Thread 0x7feba133c700 (LWP 15419)):
#0  0x00007febdb864e84 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007febdb81a65c in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007febdb81b06b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007febdb81b25c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007febdd2f687b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007febdd2a427b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007febdd0f3ec6 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007febdd0fdaa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007febdc296fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007febdcded4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7feba29c5700 (LWP 15272)):
#0  0x00007febdcde2819 in __GI___poll (fds=0x7feb9400a0f0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007febdb81b136 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007febdb81b25c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007febdd2f687b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007febdd2a427b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007febdd0f3ec6 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007febdd0fdaa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007febdc296fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007febdcded4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7feba338f700 (LWP 15252)):
#0  0x00007febdcde2819 in __GI___poll (fds=0x5618902ce2c0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007febdb81b136 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007febdb81b4c2 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007febb3e820d6 in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007febdb843415 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007febdc296fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007febdcded4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7feba3b90700 (LWP 15251)):
#0  0x00007febdcde27d7 in __GI___poll (fds=0x5618902b3180, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007febdb81b136 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007febdb81b25c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007febdb81b2a1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007febdb843415 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007febdc296fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007febdcded4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7febb1f01700 (LWP 15248)):
#0  0x00007febdcde2819 in __GI___poll (fds=0x7feba40934b0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007febdb81b136 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007febdb81b25c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007febdd2f687b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007febdd2a427b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007febdd0f3ec6 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007febdd0fdaa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007febdc296fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007febdcded4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7febb2b18700 (LWP 15247)):
#0  0x00007febdb818065 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007febdb81a5a3 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007febdb81b06b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007febdb81b25c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007febdd2f687b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007febdd2a427b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007febdd0f3ec6 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007febdd0fdaa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007febdc296fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007febdcded4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7febb9d6a700 (LWP 15246)):
#0  0x00007febdcdde494 in __GI___libc_read (nbytes=16, buf=0x7febb9d69a40, fd=17) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007febdcdde494 in __GI___libc_read (fd=17, buf=0x7febb9d69a40, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007febdb860aa0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007febdb81ac0f in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007febdb81b0e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007febdb81b25c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007febdd2f687b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007febdd2a427b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007febdd0f3ec6 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007febdeb2a476 in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007febdd0fdaa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007febdc296fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#12 0x00007febdcded4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7febcd3a5700 (LWP 15243)):
#0  0x00007febdc29d00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x56188f9f3df8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007febdc29d00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x56188f9f3da8, cond=0x56188f9f3dd0) at pthread_cond_wait.c:502
#2  0x00007febdc29d00c in __pthread_cond_wait (cond=0x56188f9f3dd0, mutex=0x56188f9f3da8) at pthread_cond_wait.c:655
#3  0x00007febcdd3d353 in  () at /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#4  0x00007febcdd3d0a7 in  () at /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#5  0x00007febdc296fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007febdcded4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7febcffff700 (LWP 15242)):
#0  0x00007febdb864e84 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007febdb81b266 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007febdd2f687b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007febdd2a427b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007febdd0f3ec6 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007febdd881c65 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007febdd0fdaa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007febdc296fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007febdcded4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7febd5994700 (LWP 15241)):
#0  0x00007febdcdfa76f in __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:56
#1  0x00007febdcde2806 in __GI___poll (fds=0x7febc801a480, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007febdb81b136 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007febdb81b25c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007febdd2f687b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007febdd2a427b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007febdd0f3ec6 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007febde5c9545 in  () at /lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007febdd0fdaa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007febdc296fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007febdcded4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7febd7794700 (LWP 15240)):
#0  0x00007febdcde2819 in __GI___poll (fds=0x7febd7793bb8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007febdb73acf7 in  () at /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007febdb73c91a in xcb_wait_for_event () at /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007febd8537d79 in  () at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007febdd0fdaa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007febdc296fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007febdcded4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7febd8ca1d80 (LWP 15238)):
[KCrash Handler]
#6  0x00007febdd2ae7d7 in QMetaObject::cast(QObject const*) const () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007febdd8c012c in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007febdd8c7412 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007febdd8c74b2 in QQmlDelegateModel::release(QObject*) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007febdd8bbd79 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007febdd8bc206 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007febdd8bc510 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007febdd8bd745 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007febdd7ebd72 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007febdd7e9044 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyData::WriteFlag>) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007febdd869694 in QQmlBinding::slowWrite(QQmlPropertyData const&, QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyData::WriteFlag>) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007febdd86a7b0 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#18 0x00007febdd86bd7c in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#19 0x00007febdd868353 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#20 0x00007febdd83f5f3 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#21 0x00007febdd7d9a8a in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#22 0x00007febdd2ce23f in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007febdd83f5f3 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#24 0x00007febdd7d9a8a in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#25 0x00007febdd2ce23f in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007febdd86df58 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#27 0x00007febdd7b8a69 in QV4::Runtime::method_callProperty(QV4::ExecutionEngine*, QV4::Value*, int, QV4::Value*, int) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#28 0x00007febdd7ac1f2 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#29 0x00007febdd8624ff in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#30 0x00007febdd7f6527 in QQmlBoundSignalExpression::evaluate(void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#31 0x00007febdd7f76bb in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#32 0x00007febdd83f5f3 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#33 0x00007febdd7d9a8a in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#34 0x00007febdd2ce23f in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007febdd8bc096 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#36 0x00007febdd8bd4e6 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#37 0x00007febdd2ce906 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007febdd8b3b7d in QQmlInstanceModel::createdItem(int, QObject*) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#39 0x00007febdd8c7ae8 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#40 0x00007febdd7f1edf in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#41 0x00007febdd7f237f in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#42 0x00007febdd8c69f1 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#43 0x00007febdd8c6c91 in QQmlDelegateModel::object(int, QQmlIncubator::IncubationMode) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#44 0x00007febdd8bcf7a in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#45 0x00007febdd8bd504 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#46 0x00007febdd2ce906 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#47 0x00007febdd8b3b16 in QQmlInstanceModel::modelUpdated(QQmlChangeSet const&, bool) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#48 0x00007febdd8be7a8 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#49 0x00007febdd8c4485 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#50 0x00007febdd8c45f8 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#51 0x00007febdd8c55c1 in QQmlDelegateModel::_q_itemsInserted(int, int) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#52 0x00007febdd8cb575 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#53 0x00007febdd8cb9cb in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#54 0x00007febdd2ce9c7 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#55 0x00007febdd2591be in QAbstractItemModel::rowsInserted(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#56 0x00007febdd2608e5 in QAbstractItemModel::endInsertRows() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#57 0x00007febde9b297d in ResourcesProxyModel::sortedInsertion(QVector<AbstractResource*> const&) () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#58 0x00007febde9b3f12 in ResourcesProxyModel::addResources(QVector<AbstractResource*> const&) () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#59 0x00007febdd2cea43 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#60 0x00007febde9ce882 in ResultsStream::resourcesFound(QVector<AbstractResource*> const&) () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#61 0x00007febde9ac854 in AggregatedResultsStream::emitResults() () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#62 0x00007febde9ac889 in AggregatedResultsStream::clear() () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#63 0x00007febde9adf63 in AggregatedResultsStream::destruction(QObject*) () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#64 0x00007febdd2cea43 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#65 0x00007febdd2cef8f in QObject::destroyed(QObject*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#66 0x00007febdd2d567f in QObject::~QObject() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#67 0x00007febde9bd5a9 in ResultsStream::~ResultsStream() () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#68 0x00007febdd2cf1a0 in QObject::event(QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#69 0x00007febde0b94b1 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#70 0x00007febde0c0950 in QApplication::notify(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#71 0x00007febdd2a55a9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#72 0x00007febdd2a859b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#73 0x00007febdd2f7233 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#74 0x00007febdb81af2e in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#75 0x00007febdb81b1c8 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#76 0x00007febdb81b25c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#77 0x00007febdd2f6863 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#78 0x00007febd85ce3e1 in  () at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#79 0x00007febdd2a427b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#80 0x00007febdd2ac262 in QCoreApplication::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#81 0x000056188d93cb23 in  ()
#82 0x00007febdcd1809b in __libc_start_main (main=0x56188d93c550, argc=1, argv=0x7ffe6eb6aff8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe6eb6afe8) at ../csu/libc-start.c:308
#83 0x000056188d93d0ca in _start ()
[Inferior 1 (process 15238) detached]

Reported using DrKonqi