Application: plasmashell (5.10.5)

Qt Version: 5.9.4
Frameworks Version: 5.44.0
Operating System: Linux 4.15.17-200.fc26.x86_64 x86_64
Distribution: "Fedora release 26 (Twenty Six)"

-- Information about the crash:
- What I was doing when the application crashed:
I was typing in the search area of "Avviatore delle applicazioni" (applications launcher), but the some things happens even if I start typing in the KRunner window

- Unusual behavior I noticed:
The compleete desktop becomes black but the applications' windows survive. After few seconds the tesktop is restored. If I repeate the typing the time to restore the desktop after its desappearance encreeses.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa17e855940 (LWP 1777))]

Thread 18 (Thread 0x7fa0919e1700 (LWP 23277)):
#0  0x00007fa1896fa97b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa18afdd62b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fa0cc079215 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fa0cc07d268 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fa0cc07b1ab in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#10 0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7fa0921e2700 (LWP 23276)):
#0  0x00007fa1896fa97b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa18afdd62b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fa0cc079215 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fa0cc07d268 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fa0cc07b1ab in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#10 0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7fa0929e3700 (LWP 23275)):
#0  0x00007fa1896fa97b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa18afdd62b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fa0cc079215 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fa0cc07d268 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#10 0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#11 0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#12 0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#13 0x00007fa0cc07b1ab in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#14 0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#15 0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#16 0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7fa0931e4700 (LWP 23274)):
#0  0x00007fa1896fa97b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa18afdd62b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fa0cc079215 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fa0cc07d268 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#10 0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#11 0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#12 0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#13 0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#14 0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#15 0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#16 0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#17 0x00007fa0cc07b1ab in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#18 0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#19 0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#20 0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7fa095a2d700 (LWP 23273)):
#0  0x00007fa1896fa97b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa18afdd62b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fa0cc079215 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fa0cc07d268 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fa0cc07b1ab in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#10 0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7fa094e2c700 (LWP 23272)):
#0  0x00007fa1896fa97b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa18afdd62b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fa0cc079215 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fa0cc07d268 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fa0cc07b1ab in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#10 0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7fa096a2f700 (LWP 23271)):
#0  0x00007fa1896fa97b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa18afdd62b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#2  0x00007fa0cc079215 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib64/libKF5ThreadWeaver.so.5
#3  0x00007fa0cc07d268 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#4  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#5  0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#6  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#7  0x00007fa0cc07d2c2 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#8  0x00007fa0cc0783cd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib64/libKF5ThreadWeaver.so.5
#9  0x00007fa0cc07b1ab in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#10 0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#11 0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#12 0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7fa09462b700 (LWP 23270)):
[KCrash Handler]
#6  0x00007fa18a345291 in __memmove_sse2_unaligned_erms () at /lib64/libc.so.6
#7  0x00007fa18afdf2f0 in QByteArray::QByteArray(char const*, int) () at /lib64/libQt5Core.so.5
#8  0x00007fa09601902f in DBPostingIterator::DBPostingIterator(void*, unsigned int) () at /lib64/libKF5BalooEngine.so.5
#9  0x00007fa0960193a9 in Baloo::PostingDB::prefixIter(QByteArray const&) () at /lib64/libKF5BalooEngine.so.5
#10 0x00007fa09601f1b0 in Baloo::Transaction::postingIterator(Baloo::EngineQuery const&) const () at /lib64/libKF5BalooEngine.so.5
#11 0x00007fa096e1c54e in Baloo::SearchStore::constructQuery(Baloo::Transaction*, Baloo::Term const&) () at /lib64/libKF5Baloo.so.5
#12 0x00007fa096e1b7b8 in Baloo::SearchStore::constructQuery(Baloo::Transaction*, Baloo::Term const&) () at /lib64/libKF5Baloo.so.5
#13 0x00007fa096e1c885 in Baloo::SearchStore::exec(Baloo::Term const&, unsigned int, int, bool) () at /lib64/libKF5Baloo.so.5
#14 0x00007fa096e088b0 in Baloo::Query::exec() () at /lib64/libKF5Baloo.so.5
#15 0x00007fa09702c2b9 in SearchRunner::match(Plasma::RunnerContext&, QString const&, QString const&) () at /usr/lib64/qt5/plugins/krunner_baloosearchrunner.so
#16 0x00007fa09702d189 in SearchRunner::match(Plasma::RunnerContext&) () at /usr/lib64/qt5/plugins/krunner_baloosearchrunner.so
#17 0x00007fa0cc971890 in Plasma::AbstractRunner::performMatch(Plasma::RunnerContext&) () at /lib64/libKF5Runner.so.5
#18 0x00007fa0cc07ca28 in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /lib64/libKF5ThreadWeaver.so.5
#19 0x00007fa0cc07b7a0 in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /lib64/libKF5ThreadWeaver.so.5
#20 0x00007fa0cc07b26d in ThreadWeaver::Thread::run() () at /lib64/libKF5ThreadWeaver.so.5
#21 0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#22 0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#23 0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7fa08f230700 (LWP 9518)):
#0  0x00007fa1832d1489 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x00007fa18328c480 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fa18328c68c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fa18328c6d1 in glib_worker_main () at /lib64/libglib-2.0.so.0
#4  0x00007fa1832b3516 in g_thread_proxy () at /lib64/libglib-2.0.so.0
#5  0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#6  0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7fa0bb124700 (LWP 2426)):
#0  0x00007fa18328952d in g_source_iter_next () at /lib64/libglib-2.0.so.0
#1  0x00007fa18328beb1 in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x00007fa18328c520 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007fa18328c68c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007fa18b1d9d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fa18b187aaa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fa18afd89aa in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007fa0bda9a497 in KCupsConnection::run() () at /lib64/libkcupslib.so
#8  0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#10 0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7fa0cf17f700 (LWP 2227)):
#0  0x00007fa18a3ad0ed in read () at /lib64/libc.so.6
#1  0x00007fa1832d0150 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007fa18328c088 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007fa18328c520 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007fa18328c68c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007fa18b1d9d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fa18b187aaa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007fa18afd89aa in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007fa18ec7e0b6 in QQuickPixmapReader::run() () at /lib64/libQt5Quick.so.5
#9  0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#11 0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7fa15d32f700 (LWP 2164)):
#0  0x00007fa1896fa97b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa190db1854 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007fa190db1899 in  () at /lib64/libQt5Script.so.5
#3  0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#4  0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7fa15dd4a700 (LWP 2136)):
#0  0x00007fa1832d14a4 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007fa18328bfa1 in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x00007fa18328c520 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007fa18328c68c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007fa18b1d9d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fa18b187aaa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fa18afd89aa in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#9  0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fa16cd85700 (LWP 2117)):
#0  0x00007fa18a3b1a5d in poll () at /lib64/libc.so.6
#1  0x00007fa18328c579 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fa18328c68c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fa18b1d9d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fa18b187aaa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fa18afd89aa in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fa18e2d98b5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#9  0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7fa16ebe9700 (LWP 1998)):
#0  0x00007fa18a3ad0ed in read () at /lib64/libc.so.6
#1  0x00007fa1832d0150 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007fa18328c088 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007fa18328c520 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007fa18328c68c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007fa18b1d9d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fa18b187aaa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007fa18afd89aa in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007fa18e2d98b5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#9  0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#11 0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fa16ffff700 (LWP 1875)):
#0  0x00007fa18a3b1a5d in poll () at /lib64/libc.so.6
#1  0x00007fa18328c579 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fa18328c68c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fa18b1d9d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fa18b187aaa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fa18afd89aa in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fa18b3f7659 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#7  0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#9  0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fa175f32700 (LWP 1806)):
#0  0x00007fa18a3b1a5d in poll () at /lib64/libc.so.6
#1  0x00007fa18f696c97 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007fa18f698a8a in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007fa177c83549 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007fa18afdcec2 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007fa1896f436d in start_thread () at /lib64/libpthread.so.0
#6  0x00007fa18a3bdb4f in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fa17e855940 (LWP 1777)):
#0  0x00007fa1896fa97b in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa18f696d12 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007fa18f69878f in wait_for_reply () at /lib64/libxcb.so.1
#3  0x00007fa18f69890f in xcb_wait_for_reply64 () at /lib64/libxcb.so.1
#4  0x00007fa18fb077a8 in _XReply () at /lib64/libX11.so.6
#5  0x00007fa18f8bcf6a in XSyncQueryCounter () at /lib64/libXext.so.6
#6  0x00007fa0bf56f0f4 in XSyncBasedPoller::poll() () at /usr/lib64/qt5/plugins/kf5/org.kde.kidletime.platforms/KF5IdleTimeXcbPlugin0.so
#7  0x00007fa0bfdfec0c in PowermanagementEngine::updateSourceEvent(QString const&) () at /usr/lib64/qt5/plugins/plasma/dataengine/plasma_engine_powermanagement.so
#8  0x00007fa18f20c82c in Plasma::DataEnginePrivate::internalUpdateSource(Plasma::DataContainer*) () at /lib64/libKF5Plasma.so.5
#9  0x00007fa18b1b1653 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#10 0x00007fa18f2073d2 in Plasma::DataContainer::updateRequested(Plasma::DataContainer*) () at /lib64/libKF5Plasma.so.5
#11 0x00007fa18f21f098 in Plasma::SignalRelay::timerEvent(QTimerEvent*) () at /lib64/libKF5Plasma.so.5
#12 0x00007fa18b1b235b in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#13 0x00007fa18bacef2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#14 0x00007fa18bad6774 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#15 0x00007fa18b188d27 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#16 0x00007fa18b1d909b in QTimerInfoList::activateTimers() () at /lib64/libQt5Core.so.5
#17 0x00007fa18b1d9931 in timerSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#18 0x00007fa18328c257 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#19 0x00007fa18328c5f8 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#20 0x00007fa18328c68c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#21 0x00007fa18b1d9d6f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#22 0x00007fa18b187aaa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#23 0x00007fa18b1901d4 in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#24 0x000055fe876c1312 in main ()

Reported using DrKonqi