Application: plasma-discover (5.12.6)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-36-generic x86_64
Distribution: Ubuntu 18.04.1 LTS

-- Information about the crash:
Selecting Plugins -> Install plugins in the Gwenview menu bar results in a Discover window appearing for about a second, and then in the KDE error message "Discover closed unexpectedly".

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f297f683800 (LWP 23482))]

Thread 12 (Thread 0x7f29367fc700 (LWP 23529)):
#0  0x00007f297757f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f29280378a0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f297757f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2928037850, cond=0x7f2928037878) at pthread_cond_wait.c:502
#2  0x00007f297757f9f3 in __pthread_cond_wait (cond=0x7f2928037878, mutex=0x7f2928037850) at pthread_cond_wait.c:655
#3  0x00007f297b36c59b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f297b364c0b in QSemaphore::acquire(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f297b5788c8 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f2978b44e1b in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007f2978bdac9d in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007f297b5785b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f2978b3af41 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007f2978b3b6f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007f297b5785b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f2978bd4a2f in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#13 0x00007f2978bd2690 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#14 0x00007f2978bd2a3a in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#15 0x00007f2978bb7381 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#16 0x00007f297b5785b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f2978b817c3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#18 0x00007f2978b81874 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#19 0x00007f2978b95721 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#20 0x00007f297d81d82c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f297d8250f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f297b5499a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f297b5a354d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f297544c287 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f297544c4c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f297544c54c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f297b5a290b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f297b5479ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f297b36622a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f297b36b16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f29775796db in start_thread (arg=0x7f29367fc700) at pthread_create.c:463
#32 0x00007f297ac6688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f29377fe700 (LWP 23528)):
#0  0x00007f297ac59bf9 in __GI___poll (fds=0x558b5d3d7620, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f297544c439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f297544c7d2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2941bbaf66 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f2975473e85 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f29775796db in start_thread (arg=0x7f29377fe700) at pthread_create.c:463
#6  0x00007f297ac6688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f2937fff700 (LWP 23527)):
#0  0x00007f297ac59bf9 in __GI___poll (fds=0x558b5d3c4fe0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f297544c439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f297544c54c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f297544c591 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2975473e85 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f29775796db in start_thread (arg=0x7f2937fff700) at pthread_create.c:463
#6  0x00007f297ac6688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f29437fe700 (LWP 23526)):
#0  0x00007f297757fed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f29437fdc40, expected=0, futex_word=0x7f293c009770) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f297757fed9 in __pthread_cond_wait_common (abstime=0x7f29437fdd00, mutex=0x7f293c009720, cond=0x7f293c009748) at pthread_cond_wait.c:533
#2  0x00007f297757fed9 in __pthread_cond_timedwait (cond=0x7f293c009748, mutex=0x7f293c009720, abstime=0x7f29437fdd00) at pthread_cond_wait.c:667
#3  0x00007f297b36c458 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f297b36852d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f297b36b16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f29775796db in start_thread (arg=0x7f29437fe700) at pthread_create.c:463
#7  0x00007f297ac6688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f2943fff700 (LWP 23525)):
#0  0x00007f297757fed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2943ffec40, expected=0, futex_word=0x7f293c006df0) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f297757fed9 in __pthread_cond_wait_common (abstime=0x7f2943ffed00, mutex=0x7f293c006da0, cond=0x7f293c006dc8) at pthread_cond_wait.c:533
#2  0x00007f297757fed9 in __pthread_cond_timedwait (cond=0x7f293c006dc8, mutex=0x7f293c006da0, abstime=0x7f2943ffed00) at pthread_cond_wait.c:667
#3  0x00007f297b36c458 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f297b36852d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f297b36b16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f29775796db in start_thread (arg=0x7f2943fff700) at pthread_create.c:463
#7  0x00007f297ac6688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f29489db700 (LWP 23524)):
#0  0x00007f297757f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f293c032af0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f297757f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f293c032aa0, cond=0x7f293c032ac8) at pthread_cond_wait.c:502
#2  0x00007f297757f9f3 in __pthread_cond_wait (cond=0x7f293c032ac8, mutex=0x7f293c032aa0) at pthread_cond_wait.c:655
#3  0x00007f297b36c59b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f297b364c0b in QSemaphore::acquire(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f297b5788c8 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f2978b44e1b in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007f2978bdac9d in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007f297b5785b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f2978b3af41 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007f2978b3b6f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007f297b5785b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f2978bd4a2f in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#13 0x00007f2978bd2690 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#14 0x00007f2978bd2a3a in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#15 0x00007f2978bb7381 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#16 0x00007f297b5785b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f2978b817c3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#18 0x00007f2978b81874 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#19 0x00007f2978b95721 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#20 0x00007f297d81d82c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f297d8250f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f297b5499a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f297b5a354d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f297544c287 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f297544c4c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f297544c54c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f297b5a290b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f297b5479ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f297b36622a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f297b36b16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f29775796db in start_thread (arg=0x7f29489db700) at pthread_create.c:463
#32 0x00007f297ac6688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f2949f5c700 (LWP 23523)):
#0  0x00007f297ac59bf9 in __GI___poll (fds=0x7f2944004e10, nfds=1, timeout=1127) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f297544c439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f297544c54c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f297b5a290b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f297b5479ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f297b36622a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f297b36b16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f29775796db in start_thread (arg=0x7f2949f5c700) at pthread_create.c:463
#8  0x00007f297ac6688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f2953d71700 (LWP 23522)):
#0  0x00007f297f4cfa1b in __tls_get_addr () at ../sysdeps/x86_64/tls_get_addr.S:49
#1  0x00007f297b369ff6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f297b5a2d01 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f297544be51 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f297544c3e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f297544c54c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f297b5a290b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f297b5479ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f297b36622a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f297e7462a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f297b36b16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f29775796db in start_thread (arg=0x7f2953d71700) at pthread_create.c:463
#12 0x00007f297ac6688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f2962ab9700 (LWP 23494)):
#0  0x00007f297ac550b4 in __GI___libc_read (fd=9, buf=0x7f2962ab8b70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f2975490a00 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f297544bf27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f297544c3e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f297544c54c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f297b5a290b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f297b5479ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f297b36622a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f297bf7c6f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f297b36b16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f29775796db in start_thread (arg=0x7f2962ab9700) at pthread_create.c:463
#11 0x00007f297ac6688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f2963cca700 (LWP 23484)):
#0  0x00007f297b369fd2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f297b5a2d01 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f297544be51 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f297544c3e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f297544c54c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f297b5a290b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f297b5479ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f297b36622a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f297c757d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f297b36b16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f29775796db in start_thread (arg=0x7f2963cca700) at pthread_create.c:463
#11 0x00007f297ac6688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f296d04d700 (LWP 23483)):
#0  0x00007f297ac59bf9 in __GI___poll (fds=0x7f296d04cca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f29751e3747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f29751e536a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f296fdfa2a9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f297b36b16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f29775796db in start_thread (arg=0x7f296d04d700) at pthread_create.c:463
#6  0x00007f297ac6688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f297f683800 (LWP 23482)):
[KCrash Handler]
#6  0x00007f297ab83e97 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007f297ab85801 in __GI_abort () at abort.c:79
#8  0x00007f297b355fa7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f297e7a92a7 in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f297e7aa275 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f297e7aae9a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f297d06d375 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007f297e81f6c5 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f297d81d82c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f297d8250f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f297b5499a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f297d06243f in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#18 0x00007f297d06307d in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#19 0x00007f297d03a2eb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007f296fe5d1c0 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#21 0x00007f297544c287 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f297544c4c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f297544c54c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f297b5a28ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f297b5479ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f297b550a84 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x0000558b5c4660e8 in  ()
#28 0x00007f297ab66b97 in __libc_start_main (main=0x558b5c465810, argc=2, argv=0x7ffe895a2648, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe895a2638) at ../csu/libc-start.c:310
#29 0x0000558b5c46636a in _start ()

Reported using DrKonqi