bug#30364: 26.0.91; thread crash on macos

[Eli Zaretskii]

> From: Aaron Jensen <aaronjensen@gmail.com>
> Date: Sat, 17 Feb 2018 17:58:28 -0800
> Cc: Noam Postavsky <npostavs@gmail.com>, 30364@debbugs.gnu.org, 
>       Noam Postavsky <npostavs@users.sourceforge.net>, Alan Third 
> <alan@idiocy.org>
> 
> > If we are to believe to the backtrace, the thread that crashed was the
> > main thread, and it crashed inside pthread_mutex_lock.  Which probably
> > means some snafu with pthreads synchronization functions.  But the NS
> > port has some complicated architecture wrt threads, so maybe that's
> > why it crashes.
> 
> Is there anything else I can do to provide more information?

A Lisp backtrace from the crashing thread would be nice.  Also, the
C-level backtrace from that thread seems truncated, so it would be
good to see all of it.

Thanks.