[kstars] [Bug 447753] Kstars crashes connecting to Ekos on MacOS

[Rob]

https://bugs.kde.org/show_bug.cgi?id=447753

--- Comment #11 from Rob <rlancaste at gmail.com> ---
Sorry I haven't been able to help you much with this so far.  I have been super
busy trying to make all the changes in my script and fix any issues that
creates that I haven't been able to look at this yet.  Also, I have a bunch of
grading that I need to do.  If it helps, one way that can really help to
investigate the cause is to open it up in QT Creator or in Xcode and run the
program with debugging turned on, then you get more information about what is
going on when the crash occurs.  I usually use my other repo for that,
KStars-INDI-Mac-Dev, rather than kstars-on-osx-craft, because I like to keep
the one repo for distribution and the other for development.  The
KStars-INDI-Mac-Dev can be a little tricky however, plus I will probably have
to redo some of it after I get done with what I am doing to
kstars-on-osx-craft.  But, I do have a QT Creator project all set up right now
with the latest KStars and INDI code using the KStars-INDI-Mac-Dev if I can do
a debugging run or two to help you.  Let me know what you want me to try.

Also, It does look like you might be on to something.  I don't have time right
now to try to solve it, but I can run some tests.  Also If it helps, I remember
I was tracking down an intermittent bug a couple of months ago, I think it was
in INDI Guide Simulator that might be similar to what you are checking out now,
if I remember right, for some reason when INDI was starting up and properties
were coming in, INDIListener received a property that either basically null or
had inaccessible or bad data in it, which caused KStars to crash because it
tried to access the bad data.  I might have some of the screenshots of the
debugging runs I did if it helps.

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