bug#25247: 26.0.50; Concurrency crashes with XLib

[Eli Zaretskii]

> From: Tino Calancha <tino.calancha@gmail.com>
> Cc: tino.calancha@gmail.com, Elias Mårtenson
>  <lokedhs@gmail.com>, raeburn@raeburn.org, 25247@debbugs.gnu.org
> Date: Fri, 30 Dec 2016 22:45:56 +0900
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> Date: Fri, 30 Dec 2016 10:37:12 +0200
> >> From: Eli Zaretskii <eliz@gnu.org>
> >> Cc: tino.calancha@gmail.com, 25247@debbugs.gnu.org
> >> 
> >> I will try to push a change that moves global lock acquiring into
> >> xgselect.c later today.
> >
> > Done.  Tino, could you please try the latest master?
> It looks stable after your patch.  I have tried my test even with
> 5000 threads and it works fine.

Great, thanks.

> Before Eli's patch i tried Ken's patch: it became more stable; it takes
> more time to make it fail but i got 2 crashes (with 5000 and 500
> threads); i also got Emacs freeze with a 500 threads test.
> I have saved the full backtraces of both crashes.
> If you need them let me know.

I think we need both of these patches.