bug#38035: 27.0.50; Trivial errors in process filters can render Emacs unusable

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: 38035@debbugs.gnu.org
> Date: Sat, 02 Nov 2019 19:38:22 +0100
> 
> > I'd suggest to count the number of times a process filter errors out,
> > and disable it after some configurable number.  Doing that on the
> > first error sounds too drastic: it could be a one-time spurious error.
> 
> Good idea.  Perhaps something time-based -- if it errors out at a rate
> that would make Emacs unusable (so more than, say, ten errors per
> minute (configurable), would disable the filter)?

Works for me, thanks.