bug#24581: 25.1 crash in ns_scroll_run after closing a frame

[Win Treese <treese@acm.org>]

> On Aug 12, 2020, at 6:22 AM, David Reitter <david.reitter@gmail.com> wrote:
> 
> +Win Treese 
> 
> On Wed, Aug 12, 2020 at 3:17 AM Stefan Kangas <stefan@marxist.se> wrote:
> David Reitter <david.reitter@gmail.com> writes:
> 
> > On Oct 1, 2016, at 4:35 PM, Alan Third <alan@idiocy.org> wrote:
> >
> >> Is it possible to recompile with NSTRACE turned on so we can see the
> >> sequence of NS functions up to a crash?
> >
> > I think we should do that.
> 
> That was almost 4 years ago.  Are you still seeing this issue?  Did you
> ever have the chance to recompile with NSTRACE turned on as suggested by
> Alan Third?  Thanks.

I have taken over maintenance of Aquamacs from David.

By coincidence, I was noticing this problem in looking through a
collection of crash reports from the past several months.

It’s still happening out there, and I haven’t yet figured out a way
to reproduce it. I did recompile a version with NSTRACE enabled,
but without being able to generate the crash to see what’s going on.

Any suggestions about what to look for there would be great. I’m
pretty comfortable with hacking on the code, but I don’t yet know
enough about what’s going on inside Emacs at that level to have a
good mental model of what’s going on.

Thanks,

Win