bug#22145: 25.0.50; tramp and auto-revert tests hang on OS X

[Eli Zaretskii]

> From: John Wiegley <jwiegley@gmail.com>
> Date: Wed, 06 Jan 2016 10:39:35 -0800
> Cc: 22145@debbugs.gnu.org, Anders Lindgren <andlind@gmail.com>
> 
> >>>>> Michael Albinus <michael.albinus@gmx.de> writes:
> 
> > What happens, if you call
> > # make -C test/automated tramp-tests
> 
> Pretty much identical behavior, except that it didn't even attempt to write a
> zero byte log file:

If you attach a debugger to emacs while it hangs, where do you find it
lurking?