Done. The bug is reported as bug ID 25172
<https://debbugs.gnu.org/cgi/bugreport.cgi?bug=25172>

Regards,
Elias

On 12 December 2016 at 00:16, Eli Zaretskii <eliz@gnu.org> wrote:

> > From: Simon Leinen <simon.leinen@gmail.com>
> > Date: Sun, 11 Dec 2016 10:08:41 +0100
> > Cc: emacs-devel <emacs-devel@gnu.org>
> >
> > On Sun, Dec 11, 2016 at 8:12 AM, Elias Mårtenson <lokedhs@gmail.com>
> wrote:
> > >     (make-thread (lambda ()
> > >         (sit-for 5)
> > >         (with-current-buffer "z"
> > >             (insert "foo"))))
> >
> > Ouch! I'm more or less able to reproduce the problem: When I call this
> > twice (the second time with the "z" buffer open in a separate frame),
> > this ends badly.  Emacs didn't crash, but became unresponsive.  None
> > of kill{, -1, -15} helped, only kill -9 killed it.  Unfortunately I'm
> > running under Mac OS X (GNU Emacs 26.0.50.3
> > (x86_64-apple-darwin15.6.0, X toolkit, Xaw3d scroll bars) of
> > 2016-12-10 - sorry, that's all my employer tolerates), so I'm not
> > really able to help debug this.  If help is needed I can try under
> > GNU/Linux in a VM.
>
> Thanks, but please report these as bugs to the bug tracker.
>