Application: plasmashell (5.12.6)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-39-generic x86_64
Distribution: Ubuntu 18.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I had recently plugged in a Logitech C920 webcam, which comes with a microphone. The microphone was not working, and someone said in their case, the microphone was muted. I clicked on the volume control in my taskbar (all of this is while the webcam is attached via USB) and then the taskbar and my desktop disappeared. However, I was still able to use ALT+F2 to use the konsole, open programs, reboot, etc.
- Unusual behavior I noticed:
My taskbar and desktop disappeared. When I say the taskbar disappeared, I mean it was simply no longer present. Programs appeared like they were in fullscreen.
When I say the desktop disappeared, I mean that the desktop was suddenly a blank gray screen with no folders/widgets/etc. Programs (e.g., Chrome) were still functioning, however.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Bus error
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f75d7e55f00 (LWP 2151))]

Thread 15 (Thread 0x7f74c7bff700 (LWP 9056)):
#0  0x00007f75d0cb79f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5586c007f2c4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586c007f270, cond=0x5586c007f298) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586c007f298, mutex=0x5586c007f270) at pthread_cond_wait.c:655
#3  0x00007f75d1b3159b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f75d58b66a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f75d58b6b0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f75d1b3016d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f75d0cb16db in start_thread (arg=0x7f74c7bff700) at pthread_create.c:463
#8  0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f74ea4ee700 (LWP 9051)):
#0  0x00007f75d0cb79f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5586bf319500) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586bf3194b0, cond=0x5586bf3194d8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586bf3194d8, mutex=0x5586bf3194b0) at pthread_cond_wait.c:655
#3  0x00007f75d1b3159b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f75d58b66a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f75d58b6b0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f75d1b3016d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f75d0cb16db in start_thread (arg=0x7f74ea4ee700) at pthread_create.c:463
#8  0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f74e93fc700 (LWP 2589)):
#0  0x00007f75d0cb79f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5586befa0ec4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586befa0e70, cond=0x5586befa0e98) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586befa0e98, mutex=0x5586befa0e70) at pthread_cond_wait.c:655
#3  0x00007f75d1b3159b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f75d58b66a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f75d58b6b0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f75d1b3016d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f75d0cb16db in start_thread (arg=0x7f74e93fc700) at pthread_create.c:463
#8  0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f74e9ced700 (LWP 2564)):
#0  0x00007f75d0cb79f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5586bef5c194) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586bef5c140, cond=0x5586bef5c168) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586bef5c168, mutex=0x5586bef5c140) at pthread_cond_wait.c:655
#3  0x00007f75d1b3159b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f75d58b66a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f75d58b6b0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f75d1b3016d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f75d0cb16db in start_thread (arg=0x7f74e9ced700) at pthread_create.c:463
#8  0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f74eaeef700 (LWP 2305)):
#0  0x00007f75d0cb79f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5586beed8b74) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586beed8b20, cond=0x5586beed8b48) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586beed8b48, mutex=0x5586beed8b20) at pthread_cond_wait.c:655
#3  0x00007f75d1b3159b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f75d58b66a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f75d58b6b0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f75d1b3016d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f75d0cb16db in start_thread (arg=0x7f74eaeef700) at pthread_create.c:463
#8  0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f74eb8f0700 (LWP 2296)):
#0  0x00007f75d0cb79f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5586bf476cd4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586bf476c80, cond=0x5586bf476ca8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586bf476ca8, mutex=0x5586bf476c80) at pthread_cond_wait.c:655
#3  0x00007f75d1b3159b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f75d58b66a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f75d58b6b0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f75d1b3016d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f75d0cb16db in start_thread (arg=0x7f74eb8f0700) at pthread_create.c:463
#8  0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f750746c700 (LWP 2293)):
#0  0x00007f75d141a0b4 in __GI___libc_read (fd=37, buf=0x7f750746bb10, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f75c98d2f55 in ?? () from /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.340.107
#2  0x00007f75cbf0ccd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f75cbec8027 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f75cbec84e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f75cbec864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f75d1d6790b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f75d1d0c9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f75d1b2b22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f74f0eb9747 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#10 0x00007f75d1b3016d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f75d0cb16db in start_thread (arg=0x7f750746c700) at pthread_create.c:463
#12 0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f7506c6b700 (LWP 2288)):
#0  0x00007f75d141ebf9 in __GI___poll (fds=0x7f74f8024280, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f75cbec8539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f75cbec864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f75d1d6790b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f75d1d0c9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f75d1b2b22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f75d58372a6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f75d1b3016d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f75d0cb16db in start_thread (arg=0x7f7506c6b700) at pthread_create.c:463
#9  0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f7518e23700 (LWP 2284)):
#0  0x00007f75d0cb79f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5586bdce7e04) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586bdce7db0, cond=0x5586bdce7dd8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586bdce7dd8, mutex=0x5586bdce7db0) at pthread_cond_wait.c:655
#3  0x00007f75d1b3159b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f75d58b66a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f75d58b6b0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f75d1b3016d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f75d0cb16db in start_thread (arg=0x7f7518e23700) at pthread_create.c:463
#8  0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f7519624700 (LWP 2280)):
#0  0x00007f75d0cb79f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5586be180b64) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5586be180b10, cond=0x5586be180b38) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5586be180b38, mutex=0x5586be180b10) at pthread_cond_wait.c:655
#3  0x00007f75d1b3159b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f75d58b66a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f75d58b6b0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f75d1b3016d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f75d0cb16db in start_thread (arg=0x7f7519624700) at pthread_create.c:463
#8  0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f75aafbc700 (LWP 2250)):
#0  0x00007f75d0cb79f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f75d780cfb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f75d780cf68, cond=0x7f75d780cf90) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f75d780cf90, mutex=0x7f75d780cf68) at pthread_cond_wait.c:655
#3  0x00007f75d75165f4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f75d7516639 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f75d0cb16db in start_thread (arg=0x7f75aafbc700) at pthread_create.c:463
#6  0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f75b5177700 (LWP 2238)):
#0  __tls_get_addr () at ../sysdeps/x86_64/tls_get_addr.S:59
#1  0x00007f75d1b2eff6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f75d1d6780a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f75cbec7a98 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f75cbec846b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f75cbec864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f75d1d6790b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f75d1d0c9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f75d1b2b22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f75d4c9d6f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f75d1b3016d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f75d0cb16db in start_thread (arg=0x7f75b5177700) at pthread_create.c:463
#12 0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f75b71e2700 (LWP 2206)):
#0  0x00007f75d141ebf9 in __GI___poll (fds=0x7f75ac0025e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f75cbec8539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f75cbec864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f75d1d6790b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f75d1d0c9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f75d1b2b22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f75d4c9d6f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f75d1b3016d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f75d0cb16db in start_thread (arg=0x7f75b71e2700) at pthread_create.c:463
#9  0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f75bcc34700 (LWP 2186)):
#0  0x00007f75d141a0b4 in __GI___libc_read (fd=7, buf=0x7f75bcc33b20, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f75c98d2f55 in ?? () from /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.340.107
#2  0x00007f75cbf0ccd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f75cbec8027 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f75cbec84e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f75cbec864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f75d1d6790b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f75d1d0c9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f75d1b2b22a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f75d21e4d45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f75d1b3016d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f75d0cb16db in start_thread (arg=0x7f75bcc34700) at pthread_create.c:463
#12 0x00007f75d142b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f75d7e55f00 (LWP 2151)):
[KCrash Handler]
#6  __memmove_avx_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:356
#7  0x00007f75d3e374a4 in KSharedDataCache::insert(QString const&, QByteArray const&) () from /usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#8  0x00007f75d5ffc490 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Plasma.so.5
#9  0x00007f75d1d3d5b5 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f75d1d4a027 in QTimer::timeout(QTimer::QPrivateSignal) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f75d1d4a388 in QTimer::timerEvent(QTimerEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f75d1d3e0db in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f75d2d1682c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f75d2d1e0f4 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f75d1d0e9a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f75d1d66d8e in QTimerInfoList::activateTimers() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f75d1d67551 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f75cbec8387 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f75cbec85c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f75cbec864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f75d1d678ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f75d1d0c9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f75d1d15a84 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00005586bbf1fcfa in ?? ()
#25 0x00007f75d132bb97 in __libc_start_main (main=0x5586bbf1f320, argc=1, argv=0x7ffc9fb2b548, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc9fb2b538) at ../csu/libc-start.c:310
#26 0x00005586bbf2009a in _start ()

Reported using DrKonqi