bug#27036: 25.1; Blocking call to accept-process-output with quit inhibited!!

[Eli Zaretskii]

> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Wed, 24 May 2017 15:24:17 +0300
> 
> On 5/23/17 3:20 PM, Francesco Potortì wrote:
> > I use inferior-octave-mode, where the Octave interpreter runs in a
> > buffer, similarly to shell-mode.
> > 
> > Starting somewhere later than Emacs 22, this mode makes on-the-fly
> > syntax suggestions whenever point is at a function definition or
> > similar.
> > 
> > Apparently something goes wrong with this funcitonality, or so I
> > suspect.  I get error messages about
> > 
> >    Blocking call to accept-process-output with quit inhibited!!
> 
> I can see it here.

"See" meaning you can reproduce the hang?

> It's pretty weird, though. Neither octave.el not comint.el reference 
> inhibit-quit.

According to description, Francesco was editing while
inferior-octave-mode was doing something in the background, so it's
possible that some foreground code just happened to bind inhibit-quit
at the wrong moment.