Application: kstars (3.6.0 Stable)

Qt Version: 5.12.8
Frameworks Version: 5.68.0
Operating System: Linux 5.4.0-125-generic x86_64
Windowing system: X11
Distribution: Ubuntu 20.04.5 LTS

-- Information about the crash:
- What I was doing when the application crashed:
doing test 3 bias with FLI CCD and CFW with storing locally and remotely. Connection with VPN (the camera is inside a University campus)

- Unusual behavior I noticed:
After first bias in the INDI controller the CCD tab closed, reopen and  in the message window it starts to write that debug was enable/disable without stopping

- Custom settings of the application:
locally: default
the camera is connected to a raspberry with astroberry (Package: kstars  Version: 5:3.0.0-1; Package: indi-fli  Version: 1.5-13)

The crash can be reproduced every time.

-- Backtrace:
Application: KStars (kstars), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f44f6b35680 (LWP 30115))]

Thread 5 (Thread 0x7f44c1c97700 (LWP 30320)):
#0  __libc_read (nbytes=10, buf=0x7f44c1c968de, fd=49) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __libc_read (fd=49, buf=0x7f44c1c968de, nbytes=10) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f44f7c63975 in pa_read () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.99.so
#3  0x00007f44f9e6c416 in pa_mainloop_prepare () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f44f9e6ceb4 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f44f9e6cf70 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f44f9e7b11d in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#7  0x00007f44f7c9272c in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.99.so
#8  0x00007f44fd3c5609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f44fb312133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f44e1ffc700 (LWP 30121)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:56
#1  0x00007f44fb305987 in __GI___poll (fds=0x7f44cc0025e0, nfds=1, timeout=4409) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007f44facdf36e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f44facdf4a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f44fbc67453 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f44fbc0e3ab in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f44fba46785 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f44fba479d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f44fd3c5609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f44fb312133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f44f4b5f700 (LWP 30117)):
#0  __libc_read (nbytes=16, buf=0x7f44f4b5e860, fd=6) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __libc_read (fd=6, buf=0x7f44f4b5e860, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f44fad27b2f in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f44facdeebe in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f44facdf312 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f44facdf4a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f44fbc67453 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f44fbc0e3ab in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f44fba46785 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f44fd3f7efa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f44fba479d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f44fd3c5609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f44fb312133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f44f5968700 (LWP 30116)):
#0  0x00007f44fb30599f in __GI___poll (fds=0x7f44f59679a8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f44f9f50c1a in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f44f9f5290a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f44f6143298 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f44fba479d2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f44fd3c5609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f44fb312133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f44f6b35680 (LWP 30115)):
[KCrash Handler]
#6  0x00007f44fbc3abc8 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f44fbc3b893 in QObject::destroyed(QObject*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f44fc667bc3 in QWidget::~QWidget() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007f44fc667e1d in QWidget::~QWidget() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f44fbc38eee in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f44fc667c29 in QWidget::~QWidget() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x0000561d90b835c1 in INDI_P::~INDI_P (this=0x561d949bca90, __in_chrg=<optimized out>) at /usr/include/c++/9/bits/atomic_base.h:326
#13 INDI_P::~INDI_P (this=0x561d949bca90, __in_chrg=<optimized out>) at ./kstars/indi/indiproperty.h:45
#14 0x00007f44fbc38eee in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f44fc667c29 in QWidget::~QWidget() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f44fc7194dd in QFrame::~QFrame() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f44fbc38eee in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f44fc667c29 in QWidget::~QWidget() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f44fc667e1d in QWidget::~QWidget() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f44fbc38eee in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f44fc667c29 in QWidget::~QWidget() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x0000561d90bf64dc in INDI_G::~INDI_G (this=0x561d97d76150, __in_chrg=<optimized out>) at /usr/include/c++/9/bits/atomic_base.h:326
#23 INDI_G::~INDI_G (this=0x561d97d76150, __in_chrg=<optimized out>) at ./kstars/indi/indigroup.h:30
#24 0x00007f44fbc38eee in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f44fc667c29 in QWidget::~QWidget() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f44fc7de05d in QStackedWidget::~QStackedWidget() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f44fbc38eee in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f44fc667c29 in QWidget::~QWidget() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f44fc7ffcad in QTabWidget::~QTabWidget() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f44fbc38eee in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f44fc667c29 in QWidget::~QWidget() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007f44fc7dd20d in QSplitter::~QSplitter() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007f44fbc38eee in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f44fc667c29 in QWidget::~QWidget() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#35 0x0000561d90b85bd2 in INDI_D::~INDI_D (this=0x561d95ac0b50, __in_chrg=<optimized out>) at /usr/include/c++/9/bits/atomic_base.h:326
#36 INDI_D::~INDI_D (this=0x561d95ac0b50, __in_chrg=<optimized out>) at ./kstars/indi/indidevice.h:34
#37 0x00007f44fbc3ba44 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007f44fc66c25d in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#39 0x00007f44fc629a66 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#40 0x00007f44fc6330f0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#41 0x00007f44fbc0f80a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#42 0x00007f44fbc12488 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#43 0x00007f44fbc67e37 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007f44facdf17d in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f44facdf400 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f44facdf4a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f44fbc67435 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#48 0x00007f44fbc0e3ab in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#49 0x00007f44fbc16116 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#50 0x0000561d908e3aa4 in main (argc=<optimized out>, argv=<optimized out>) at ./kstars/main.cpp:382
[Inferior 1 (process 30115) detached]

Possible duplicates by query: bug 452962, bug 450559, bug 444766, bug 444002, bug 443935.

Reported using DrKonqi