Application: krunner (5.10.5)

Qt Version: 5.9.1
Frameworks Version: 5.38.0
Operating System: Linux 4.16.1 x86_64
Distribution: Ubuntu 17.10

-- Information about the crash:
- What I was doing when the application crashed:

I just aktivate krunner by keyboard shortcut, type start of the command and krunner crashed. It happen time by time

The crash can be reproduced sometimes.

-- Backtrace:
Application: krunner (krunner), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f36cabe0d80 (LWP 9051))]

Thread 14 (Thread 0x7f36727fc700 (LWP 11691)):
#0  0x00007f36c436d072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5617c7539a74) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f36c436d072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5617c7539a20, cond=0x5617c7539a48) at pthread_cond_wait.c:502
#2  0x00007f36c436d072 in __pthread_cond_wait (cond=0x5617c7539a48, mutex=0x5617c7539a20) at pthread_cond_wait.c:655
#3  0x00007f36c6a396cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f369f376995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f369f37aa18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f369f37aa72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f369f3788db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f36c6a3829d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f36c43667fc in start_thread (arg=0x7f36727fc700) at pthread_create.c:465
#12 0x00007f36c633ab5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f3672ffd700 (LWP 11690)):
#0  0x00007f36c436d072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5617c7539a74) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f36c436d072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5617c7539a20, cond=0x5617c7539a48) at pthread_cond_wait.c:502
#2  0x00007f36c436d072 in __pthread_cond_wait (cond=0x5617c7539a48, mutex=0x5617c7539a20) at pthread_cond_wait.c:655
#3  0x00007f36c6a396cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f369f376995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f369f37aa18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f369f37aa72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f369f3788db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f36c6a3829d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f36c43667fc in start_thread (arg=0x7f3672ffd700) at pthread_create.c:465
#12 0x00007f36c633ab5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f36737fe700 (LWP 11689)):
#0  0x00007f36c436d072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5617c7539a74) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f36c436d072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5617c7539a20, cond=0x5617c7539a48) at pthread_cond_wait.c:502
#2  0x00007f36c436d072 in __pthread_cond_wait (cond=0x5617c7539a48, mutex=0x5617c7539a20) at pthread_cond_wait.c:655
#3  0x00007f36c6a396cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f369f376995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f369f37aa18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f369f37aa72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f369f37aa72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f369f37aa72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f369f37aa72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f369f3788db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f36c6a3829d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f36c43667fc in start_thread (arg=0x7f36737fe700) at pthread_create.c:465
#18 0x00007f36c633ab5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f3673fff700 (LWP 11688)):
#0  0x00007f36c436d072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5617c7539a74) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f36c436d072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5617c7539a20, cond=0x5617c7539a48) at pthread_cond_wait.c:502
#2  0x00007f36c436d072 in __pthread_cond_wait (cond=0x5617c7539a48, mutex=0x5617c7539a20) at pthread_cond_wait.c:655
#3  0x00007f36c6a396cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f369f376995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f369f37aa18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f369f37aa72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f369f37aa72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f369f3788db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f36c6a3829d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f36c43667fc in start_thread (arg=0x7f3673fff700) at pthread_create.c:465
#14 0x00007f36c633ab5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f3684c7a700 (LWP 11687)):
#0  0x00007f36c436d072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5617c7539a74) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f36c436d072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5617c7539a20, cond=0x5617c7539a48) at pthread_cond_wait.c:502
#2  0x00007f36c436d072 in __pthread_cond_wait (cond=0x5617c7539a48, mutex=0x5617c7539a20) at pthread_cond_wait.c:655
#3  0x00007f36c6a396cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f369f376995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f369f37aa18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f369f37aa72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f369f37aa72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f369f3788db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f36c6a3829d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f36c43667fc in start_thread (arg=0x7f3684c7a700) at pthread_create.c:465
#14 0x00007f36c633ab5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f368547b700 (LWP 11686)):
[KCrash Handler]
#6  0x00007f36b2fac672 in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#7  0x00007f36b2facde8 in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#8  0x00007f36b2fedf19 in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#9  0x00007f36b2fee2cc in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#10 0x00007f36b2fe5954 in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#11 0x00007f36b2fe6288 in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#12 0x00007f36b2fe64b8 in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#13 0x00007f36b2fdc22f in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#14 0x00007f36b2f946b5 in Solid::Device::listFromQuery(Solid::Predicate const&, QString const&) () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#15 0x00007f36b2f94d66 in Solid::Device::listFromQuery(QString const&, QString const&) () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#16 0x00007f36904f9015 in  () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#17 0x00007f36904f91e1 in  () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#18 0x00007f36904f785b in  () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#19 0x00007f36904f4a70 in Baloo::IndexerConfig::IndexerConfig() () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#20 0x00007f369070d386 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#21 0x00007f369070e44b in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#22 0x00007f369f599830 in Plasma::AbstractRunner::performMatch(Plasma::RunnerContext&) () at /usr/lib/x86_64-linux-gnu/libKF5Runner.so.5
#23 0x00007f369f37a1d8 in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#24 0x00007f369f378e40 in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#25 0x00007f369f37899d in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#26 0x00007f36c6a3829d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f36c43667fc in start_thread (arg=0x7f368547b700) at pthread_create.c:465
#28 0x00007f36c633ab5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f3685c7c700 (LWP 11685)):
#0  0x00007f36c436d072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5617c7539a74) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f36c436d072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5617c7539a20, cond=0x5617c7539a48) at pthread_cond_wait.c:502
#2  0x00007f36c436d072 in __pthread_cond_wait (cond=0x5617c7539a48, mutex=0x5617c7539a20) at pthread_cond_wait.c:655
#3  0x00007f36c6a396cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f369f376995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f369f37aa18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f369f37aa72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f369f3788db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f36c6a3829d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f36c43667fc in start_thread (arg=0x7f3685c7c700) at pthread_create.c:465
#12 0x00007f36c633ab5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f368647d700 (LWP 11684)):
#0  0x00007f36c436d072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5617c7539a74) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f36c436d072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5617c7539a20, cond=0x5617c7539a48) at pthread_cond_wait.c:502
#2  0x00007f36c436d072 in __pthread_cond_wait (cond=0x5617c7539a48, mutex=0x5617c7539a20) at pthread_cond_wait.c:655
#3  0x00007f36c6a396cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f369f376995 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f369f37aa18 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f369f37aa72 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f369f375b5d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f369f3788db in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f36c6a3829d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f36c43667fc in start_thread (arg=0x7f368647d700) at pthread_create.c:465
#12 0x00007f36c633ab5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f368d66e700 (LWP 11683)):
#0  0x00007f36c20b05d4 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f36c206b01d in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f36c206b502 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f368ecb9b26 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f36c2092645 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f36c43667fc in start_thread (arg=0x7f368d66e700) at pthread_create.c:465
#6  0x00007f36c633ab5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f368de6f700 (LWP 11682)):
#0  0x00007f36c632a06d in __GI___libc_read (fd=20, buf=0x7f368de6ebe0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f36c20af280 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f36c206ac4b in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f36c206b110 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f36c206b27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f36c206b2c1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f36c2092645 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f36c43667fc in start_thread (arg=0x7f368de6f700) at pthread_create.c:465
#8  0x00007f36c633ab5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f36b08e7700 (LWP 9054)):
#0  0x00007f36c632e951 in __GI___poll (fds=0x7f36a00029e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f36c206b169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f36c206b27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f36c6c6e49b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f36c6c13e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f36c6a333ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f36c95c7f45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f36c6a3829d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f36c43667fc in start_thread (arg=0x7f36b08e7700) at pthread_create.c:465
#9  0x00007f36c633ab5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f36b26aa700 (LWP 9053)):
#0  0x00007f36c632a06d in __GI___libc_read (fd=7, buf=0x7f36b26a9a60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f36c20af280 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f36c206ac4b in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f36c206b110 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f36c206b27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f36c6c6e49b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f36c6c13e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f36c6a333ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f36c8571e45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f36c6a3829d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f36c43667fc in start_thread (arg=0x7f36b26aa700) at pthread_create.c:465
#11 0x00007f36c633ab5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f36b47ee700 (LWP 9052)):
#0  0x00007f36c632e951 in __GI___poll (fds=0x7f36b47edbb8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f36c5a14747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f36c5a1653a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f36b6b44f09 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f36c6a3829d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f36c43667fc in start_thread (arg=0x7f36b47ee700) at pthread_create.c:465
#6  0x00007f36c633ab5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f36cabe0d80 (LWP 9051)):
#0  0x00007f36c436d072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7ffe738d2a38) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f36c436d072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5617c70cbca8, cond=0x7ffe738d2a10) at pthread_cond_wait.c:502
#2  0x00007f36c436d072 in __pthread_cond_wait (cond=0x7ffe738d2a10, mutex=0x5617c70cbca8) at pthread_cond_wait.c:655
#3  0x00007f36c5a14952 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007f36c5a1623f in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#5  0x00007f36c5a163bf in xcb_wait_for_reply64 () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#6  0x00007f36c5c6da78 in _XReply () at /usr/lib/x86_64-linux-gnu/libX11.so.6
#7  0x00007f36c368a441 in  () at /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#8  0x00007f36c368a7d7 in  () at /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#9  0x00007f36b17eee20 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#10 0x00007f36b17ef3a1 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#11 0x00007f36b17eaea5 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#12 0x00007f36c9a48378 in QSGBatchRenderer::Renderer::renderBatches() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007f36c9a4dcac in QSGBatchRenderer::Renderer::render() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f36c9a3e66d in QSGRenderer::renderScene(QSGBindable const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f36c9a3eb2b in QSGRenderer::renderScene(unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f36c9a78f50 in QSGDefaultRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007f36c9ad59b8 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007f36c9a6b399 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007f36c9adfd66 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007f36ca817cd3 in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#21 0x00005617c60faa83 in  ()
#22 0x00007f36c7c2046c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f36c7c27d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f36c6c15de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f36c71e0b01 in QWindowPrivate::deliverUpdateRequest() () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#26 0x00007f36c71e1019 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#27 0x00007f36c9adfd05 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#28 0x00007f36ca817cd3 in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#29 0x00005617c60faa83 in  ()
#30 0x00007f36c7c2046c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007f36c7c27d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007f36c6c15de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f36c6c6d91e in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f36c6c6e119 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007f36c206afb7 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f36c206b1f0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f36c206b27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f36c6c6e49b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007f36c6c13e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x00007f36c6c1cda4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00005617c60f8061 in  ()
#42 0x00007f36c62471c1 in __libc_start_main (main=0x5617c60f7c40, argc=1, argv=0x7ffe738d3f28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe738d3f18) at ../csu/libc-start.c:308
#43 0x00005617c60f80ea in _start ()

Reported using DrKonqi