Application: plasma-discover (5.10.5)

Qt Version: 5.9.1
Frameworks Version: 5.38.0
Operating System: Linux 4.13.0-36-lowlatency x86_64
Distribution: Ubuntu 17.10

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

I was attempting to use the left panel scrollbar of Discovers Plasma Add On section.
It never shows usable scrollbars.

- Unusual behavior I noticed:
No scroll bar and buggy behavior when I attempted to summon one by placing the mouse over ther rightmost area of the pannel.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f29243275c0 (LWP 20400))]

Thread 18 (Thread 0x7f28ae91b700 (LWP 20426)):
#0  0x00007f291c2e0072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562a93e8182c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f291c2e0072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562a93e817d8, cond=0x562a93e81800) at pthread_cond_wait.c:502
#2  0x00007f291c2e0072 in __pthread_cond_wait (cond=0x562a93e81800, mutex=0x562a93e817d8) at pthread_cond_wait.c:655
#3  0x00007f28febc5b8b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x0000000000000000 in  ()

Thread 17 (Thread 0x7f28ae11a700 (LWP 20424)):
#0  0x00007f291a45f5d4 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f291a419949 in g_main_context_query () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f291a41a0e7 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f291a41a27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f29203a449b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f2920349e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f29201693ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f292016e29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f291c2d97fc in start_thread (arg=0x7f28ae11a700) at pthread_create.c:465
#9  0x00007f291fa70b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f28bf155700 (LWP 20419)):
#0  0x00007f291a419880 in g_main_context_query () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f291a41a0e7 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f291a41a27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f29203a449b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2920349e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f29201693ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f292016e29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f291c2d97fc in start_thread (arg=0x7f28bf155700) at pthread_create.c:465
#8  0x00007f291fa70b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f28bffff700 (LWP 20418)):
#0  0x00007f291c2e18e3 in __GI___pthread_getspecific (key=3) at pthread_getspecific.c:30
#1  0x00007f291a441b30 in g_thread_self () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f291a41a26d in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f29203a449b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2920349e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f29201693ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f292016e29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f291c2d97fc in start_thread (arg=0x7f28bffff700) at pthread_create.c:465
#8  0x00007f291fa70b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f28c6e7e700 (LWP 20415)):
#0  0x00007f291a45f5b9 in g_mutex_lock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f291a41999e in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f291a41a110 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f291a41a502 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f28c55b5b26 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f291a441645 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f291c2d97fc in start_thread (arg=0x7f28c6e7e700) at pthread_create.c:465
#7  0x00007f291fa70b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f28d2397700 (LWP 20414)):
#0  0x00007f291fa64951 in __GI___poll (fds=0x562a9107cfa0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f291a41a169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f291a41a27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f291a41a2c1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f291a441645 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f291c2d97fc in start_thread (arg=0x7f28d2397700) at pthread_create.c:465
#6  0x00007f291fa70b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f28edffb700 (LWP 20412)):
#0  0x00007f291fa64951 in __GI___poll (fds=0x7f28cc004f00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f291a41a169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f291a41a27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f29203a449b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2920349e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f29201693ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f29235f3846 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f292016e29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f291c2d97fc in start_thread (arg=0x7f28edffb700) at pthread_create.c:465
#9  0x00007f291fa70b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f28ee7fc700 (LWP 20410)):
#0  0x00007f291c2e0072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562a90c3d2f0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f291c2e0072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562a90c3d2a0, cond=0x562a90c3d2c8) at pthread_cond_wait.c:502
#2  0x00007f291c2e0072 in __pthread_cond_wait (cond=0x562a90c3d2c8, mutex=0x562a90c3d2a0) at pthread_cond_wait.c:655
#3  0x00007f28febc5b8b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x0000000000000000 in  ()

Thread 10 (Thread 0x7f28eeffd700 (LWP 20409)):
#0  0x00007f291c2e0072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562a90c3d2f4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f291c2e0072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562a90c3d2a0, cond=0x562a90c3d2c8) at pthread_cond_wait.c:502
#2  0x00007f291c2e0072 in __pthread_cond_wait (cond=0x562a90c3d2c8, mutex=0x562a90c3d2a0) at pthread_cond_wait.c:655
#3  0x00007f28febc5b8b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x0000000000000000 in  ()

Thread 9 (Thread 0x7f28ef7fe700 (LWP 20408)):
#0  0x00007f291c2e0072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562a90c3d208) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f291c2e0072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562a90c3d1b8, cond=0x562a90c3d1e0) at pthread_cond_wait.c:502
#2  0x00007f291c2e0072 in __pthread_cond_wait (cond=0x562a90c3d1e0, mutex=0x562a90c3d1b8) at pthread_cond_wait.c:655
#3  0x00007f28febc5b8b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x0000000000000000 in  ()

Thread 8 (Thread 0x7f28effff700 (LWP 20407)):
#0  0x00007f291c2e0072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562a90c3d20c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f291c2e0072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562a90c3d1b8, cond=0x562a90c3d1e0) at pthread_cond_wait.c:502
#2  0x00007f291c2e0072 in __pthread_cond_wait (cond=0x562a90c3d1e0, mutex=0x562a90c3d1b8) at pthread_cond_wait.c:655
#3  0x00007f28febc5b8b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x0000000000000000 in  ()

Thread 7 (Thread 0x7f28f49f7700 (LWP 20406)):
#0  0x00007f291c2e0072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562a90c3d20c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f291c2e0072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562a90c3d1b8, cond=0x562a90c3d1e0) at pthread_cond_wait.c:502
#2  0x00007f291c2e0072 in __pthread_cond_wait (cond=0x562a90c3d1e0, mutex=0x562a90c3d1b8) at pthread_cond_wait.c:655
#3  0x00007f28febc5b8b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x0000000000000000 in  ()

Thread 6 (Thread 0x7f28fcbc4700 (LWP 20405)):
#0  0x00007f291c2e0072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562a90c3f1e4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f291c2e0072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562a90c3f190, cond=0x562a90c3f1b8) at pthread_cond_wait.c:502
#2  0x00007f291c2e0072 in __pthread_cond_wait (cond=0x562a90c3f1b8, mutex=0x562a90c3f190) at pthread_cond_wait.c:655
#3  0x00007f28febc5b8b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x0000000000000000 in  ()

Thread 5 (Thread 0x7f28fd9ec700 (LWP 20404)):
#0  0x00007f291c2e0072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562a90c3c0c0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f291c2e0072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x562a90c3c070, cond=0x562a90c3c098) at pthread_cond_wait.c:502
#2  0x00007f291c2e0072 in __pthread_cond_wait (cond=0x562a90c3c098, mutex=0x562a90c3c070) at pthread_cond_wait.c:655
#3  0x00007f28febc5b8b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x0000000000000000 in  ()

Thread 4 (Thread 0x7f290701e700 (LWP 20403)):
#0  0x00007ffcdf98a979 in  ()
#1  0x00007ffcdf98ac30 in clock_gettime ()
#2  0x00007f291fa7f996 in __GI___clock_gettime (clock_id=1, tp=0x7f290701da00) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f29203a3db1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f29203a25e9 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f29203a2bc5 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f29203a420e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f291a4196a8 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f291a41a09b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f291a41a27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f29203a449b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f2920349e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f29201693ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f2920d74f45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007f292016e29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f291c2d97fc in start_thread (arg=0x7f290701e700) at pthread_create.c:465
#16 0x00007f291fa70b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f290822f700 (LWP 20402)):
#0  0x00007f291a45f5d4 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f291a419698 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f291a41a09b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f291a41a27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f29203a449b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f2920349e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f29201693ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f29224f8e45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f292016e29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f291c2d97fc in start_thread (arg=0x7f290822f700) at pthread_create.c:465
#10 0x00007f291fa70b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f2910c8a700 (LWP 20401)):
#0  0x00007f291fa64951 in __GI___poll (fds=0x7f2910c89bb8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f291a1b3747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f291a1b553a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f29131e4f09 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f292016e29d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f291c2d97fc in start_thread (arg=0x7f2910c8a700) at pthread_create.c:465
#6  0x00007f291fa70b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f29243275c0 (LWP 20400)):
[KCrash Handler]
#6  0x00007f29236a7134 in QQuickItem::isVisible() const () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f29236a7599 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f29236b307b in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f29236b32c5 in QQuickItem::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f292194a46c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f2921951d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f292034bde8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f29236a75b5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f29236b307b in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f29236b32c5 in QQuickItem::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f292194a46c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f2921951d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f292034bde8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f29236a75b5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007f29236b307b in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f29236b32c5 in QQuickItem::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f292194a46c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f2921951d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f292034bde8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f29236a75b5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#26 0x00007f29236b307b in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#27 0x00007f29236b32c5 in QQuickItem::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#28 0x00007f292194a46c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f2921951d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f292034bde8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f29236c45a8 in QQuickWindow::sendEvent(QQuickItem*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#32 0x00007f29236c47bf in QQuickWindow::keyPressEvent(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#33 0x00007f292119ad35 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#34 0x00007f29236cbd05 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#35 0x00007f292194a46c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007f2921951d34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007f292034bde8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007f292118bab0 in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#39 0x00007f2921190a05 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#40 0x00007f2921168cab in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#41 0x00007f29132475a0 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#42 0x00007f291a419fb7 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f291a41a1f0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f291a41a27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f29203a447f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#46 0x00007f2920349e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#47 0x00007f2920352da4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#48 0x0000562a8ecaafa8 in  ()
#49 0x00007f291f97d1c1 in __libc_start_main (main=0x562a8ecaa6d0, argc=3, argv=0x7ffcdf8aace8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffcdf8aacd8) at ../csu/libc-start.c:308
#50 0x0000562a8ecab22a in _start ()

Reported using DrKonqi