Application: krunner (5.12.5)

Qt Version: 5.10.1
Frameworks Version: 5.46.0
Operating System: Linux 4.16.14-300.fc28.x86_64 x86_64
Distribution: "Fedora release 28 (Twenty Eight)"

-- Information about the crash:
- What I was doing when the application crashed:
Just started my computer, logged in and started krunner with ALT+F2. Start typing, by about the third character it crash. Today i was searching for Firefox, but this has happened many times before with other searches and when the system has been running (and krunner used) for many hours.
I've not changed any thing regarding krunner, it is in my understanding that it is "stock". 
Im using Fedora in KDE flavor, so all of KDE was shipped with the installation of Fedora.

The crash can be reproduced sometimes.

-- Backtrace:
Application: krunner (krunner), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fbf0e5d9940 (LWP 1628))]

Thread 23 (Thread 0x7fbe777fe700 (LWP 2210)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7fbe77fff700 (LWP 2209)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7fbe94ff9700 (LWP 2208)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7fbe957fa700 (LWP 2207)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7fbe95ffb700 (LWP 2206)):
[KCrash Handler]
#6  0x00007fbeb9c7767a in walkExpr () at /lib64/libsqlite3.so.0
#7  0x00007fbeb9c77694 in walkExpr () at /lib64/libsqlite3.so.0
#8  0x00007fbeb9c77694 in walkExpr () at /lib64/libsqlite3.so.0
#9  0x00007fbeb9c77535 in sqlite3WalkSelect.part.193 () at /lib64/libsqlite3.so.0
#10 0x00007fbeb9c79116 in sqlite3SelectPrep () at /lib64/libsqlite3.so.0
#11 0x00007fbeb9cc7f28 in sqlite3Select () at /lib64/libsqlite3.so.0
#12 0x00007fbeb9cfb356 in sqlite3RunParser () at /lib64/libsqlite3.so.0
#13 0x00007fbeb9cffd40 in sqlite3Prepare () at /lib64/libsqlite3.so.0
#14 0x00007fbeb9d00286 in sqlite3LockAndPrepare () at /lib64/libsqlite3.so.0
#15 0x00007fbeb9d012d6 in sqlite3Prepare16 () at /lib64/libsqlite3.so.0
#16 0x00007fbed27ad4fb in QSQLiteResult::prepare(QString const&) () at /usr/lib64/qt5/plugins/sqldrivers/libqsqlite.so
#17 0x00007fbf0e68e958 in QSqlResult::savePrepare(QString const&) () at /lib64/libQt5Sql.so.5
#18 0x00007fbf0e67ee20 in QSqlQuery::prepare(QString const&) () at /lib64/libQt5Sql.so.5
#19 0x00007fbeb98374a6 in  () at /usr/lib64/qt5/plugins/krunner_bookmarksrunner.so
#20 0x00007fbeb984085d in  () at /usr/lib64/qt5/plugins/krunner_bookmarksrunner.so
#21 0x00007fbeb983e5eb in  () at /usr/lib64/qt5/plugins/krunner_bookmarksrunner.so
#22 0x00007fbedce13598 in Plasma::AbstractRunner::performMatch(Plasma::RunnerContext&) (this=0x55688e950600, localContext=...) at /usr/include/qt5/QtCore/qstring.h:1119
#23 0x00007fbedcbedf4c in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /lib64/libKF5ThreadWeaver.so.5
#24 0x00007fbedcbecd74 in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /lib64/libKF5ThreadWeaver.so.5
#25 0x00007fbedcbec813 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#26 0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#27 0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#28 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7fbe967fc700 (LWP 2205)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7fbe96ffd700 (LWP 2204)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7fbe977fe700 (LWP 2203)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7fbe97fff700 (LWP 2202)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7fbeb4f2c700 (LWP 2201)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7fbeb572d700 (LWP 2200)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7fbeb5f2e700 (LWP 2199)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7fbeb672f700 (LWP 2198)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7fbeb6f30700 (LWP 2197)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7fbeb7731700 (LWP 2196)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7fbeb7f32700 (LWP 2195)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbedcbea740 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fbedcbee87c in  () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fbedcbee8da in  () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fbedcbe97d1 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fbedcbec761 in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7fbecb3bc700 (LWP 2191)):
#0  0x00007fbf09e0a589 in poll () at /lib64/libc.so.6
#1  0x00007fbf01ad2be6 in  () at /lib64/libglib-2.0.so.0
#2  0x00007fbf01ad2fa2 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#3  0x00007fbed0e3c6ba in  () at /lib64/libgio-2.0.so.0
#4  0x00007fbf01afaf2a in  () at /lib64/libglib-2.0.so.0
#5  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7fbecbbbd700 (LWP 2190)):
#0  0x00007fbf09e05ff4 in read () at /lib64/libc.so.6
#1  0x00007fbf01b18070 in  () at /lib64/libglib-2.0.so.0
#2  0x00007fbf01ad26db in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007fbf01ad2b90 in  () at /lib64/libglib-2.0.so.0
#4  0x00007fbf01ad2d10 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007fbf01ad2d61 in  () at /lib64/libglib-2.0.so.0
#6  0x00007fbf01afaf2a in  () at /lib64/libglib-2.0.so.0
#7  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#8  0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fbed3982700 (LWP 2187)):
#0  0x00007fbf09e0fa19 in syscall () at /lib64/libc.so.6
#1  0x00007fbee6949295 in  () at /lib64/libGLX_nvidia.so.0
#2  0x00007fbee6948f23 in  () at /lib64/libGLX_nvidia.so.0
#3  0x00007fbee57cd81d in  () at /lib64/libnvidia-glcore.so.396.24
#4  0x00007fbee577aa4c in  () at /lib64/libnvidia-glcore.so.396.24
#5  0x00007fbee569b9ce in  () at /lib64/libnvidia-glcore.so.396.24
#6  0x00007fbee6947c0e in  () at /lib64/libGLX_nvidia.so.0
#7  0x00007fbf0e7cb07a in QGLXContext::swapBuffers(QPlatformSurface*) () at /usr/lib64/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#8  0x00007fbf0b039e88 in QOpenGLContext::swapBuffers(QSurface*) () at /lib64/libQt5Gui.so.5
#9  0x00007fbf0d4b0905 in QSGRenderThread::syncAndRender() () at /lib64/libQt5Quick.so.5
#10 0x00007fbf0d4b5910 in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#11 0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#12 0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#13 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7fbedf5ef700 (LWP 1880)):
#0  0x00007fbf09e05ff4 in read () at /lib64/libc.so.6
#1  0x00007fbf01b18070 in  () at /lib64/libglib-2.0.so.0
#2  0x00007fbf01ad26db in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007fbf01ad2b90 in  () at /lib64/libglib-2.0.so.0
#4  0x00007fbf01ad2d10 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007fbf0acd6c2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fbf0ac8512b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007fbf0aad39c6 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007fbf0d1c3339 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#9  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fbee7413700 (LWP 1773)):
#0  0x00007fbf01b194b8 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007fbf01ad2d1a in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#2  0x00007fbf0acd6c2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#3  0x00007fbf0ac8512b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fbf0aad39c6 in QThread::exec() () at /lib64/libQt5Core.so.5
#5  0x00007fbf0e723299 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#6  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#7  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#8  0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fbeed2ed700 (LWP 1662)):
#0  0x00007fbf09e0a589 in poll () at /lib64/libc.so.6
#1  0x00007fbf08e7804f in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007fbf08e79caa in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007fbeef2604d9 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007fbf0aad811d in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007fbf067d3594 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fbf09e1500f in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fbf0e5d9940 (LWP 1628)):
#0  0x00007fbf067d952c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fbf0aad883b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fbf0d4b1b47 in QSGThreadedRenderLoop::polishAndSync(QSGThreadedRenderLoop::Window*, bool) () at /lib64/libQt5Quick.so.5
#3  0x00007fbf0d4b29d2 in QSGThreadedRenderLoop::handleUpdateRequest(QQuickWindow*) () at /lib64/libQt5Quick.so.5
#4  0x00007fbf0d517986 in QQuickWindow::event(QEvent*) () at /lib64/libQt5Quick.so.5
#5  0x00007fbf0e37f84b in PlasmaQuick::Dialog::event(QEvent*) () at /lib64/libKF5PlasmaQuick.so.5
#6  0x000055688d7fe173 in  ()
#7  0x00007fbf0b7e8e95 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#8  0x00007fbf0b7f083a in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#9  0x00007fbf0ac86376 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#10 0x00007fbf0b00e965 in QWindowPrivate::deliverUpdateRequest() () at /lib64/libQt5Gui.so.5
#11 0x00007fbf0b00ee99 in QWindow::event(QEvent*) () at /lib64/libQt5Gui.so.5
#12 0x00007fbf0d5178df in QQuickWindow::event(QEvent*) () at /lib64/libQt5Quick.so.5
#13 0x00007fbf0e37f84b in PlasmaQuick::Dialog::event(QEvent*) () at /lib64/libKF5PlasmaQuick.so.5
#14 0x000055688d7fe173 in  ()
#15 0x00007fbf0b7e8e95 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#16 0x00007fbf0b7f083a in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#17 0x00007fbf0ac86376 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#18 0x00007fbf0acd5f19 in QTimerInfoList::activateTimers() () at /lib64/libQt5Core.so.5
#19 0x00007fbf0acd6804 in idleTimerSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#20 0x00007fbf01ad28ad in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#21 0x00007fbf01ad2c78 in  () at /lib64/libglib-2.0.so.0
#22 0x00007fbf01ad2d10 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#23 0x00007fbf0acd6c2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#24 0x00007fbeef2ee065 in QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5XcbQpa.so.5
#25 0x00007fbf0ac8512b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#26 0x00007fbf0ac8d5b6 in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#27 0x000055688d7fb9c0 in  ()
#28 0x00007fbf09d3e18b in __libc_start_main () at /lib64/libc.so.6
#29 0x000055688d7fba4a in _start ()

Reported using DrKonqi