bug#60220: 29.0.60; macOS 13.1 crash shortly after starting Emacs

[Eli Zaretskii]

> From: Aaron Jensen <aaronjensen@gmail.com>
> Date: Thu, 29 Dec 2022 19:03:47 -0500
> Cc: Eli Zaretskii <eliz@gnu.org>, gerd.moellmann@gmail.com, 
> 60220@debbugs.gnu.org
> 
> > > Could it by that the dynamic linker is being invoked recursively? That
> > > is, while something is being dynamically linked, a SIGALRM or equivalent
> > > arrives, some idle timer code is run, and the dynamic linker is invoked
> > > before the outer linker finishes? I imagine that might put some dynamic
> > > linkers into a tizzy.
> >
> >
> > I have no idea, would we see that in the trace at all? Here are two
> > more crashes: 
> > https://gist.github.com/aaronjensen/f7c46857ea93c858f46a639d8880f290
> >
> > I have been able to reproduce it just now pretty easily, but I still
> > can't reproduce it with the debugger attached.
> 
> Would it make sense to use block_atimers while loading native lisp? If
> that's a workable thing and you can send me a patch I can try it out.

Andrea, can you suggest a patch along these lines for Aaron to try?

Thanks.