GNU bug report logs - #45898
27.1; wedged in redisplay again

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Message #62 received at 45898 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Emacs-hacker2018 <at> jovi.net, 45898 <at> debbugs.gnu.org
Subject: Re: bug#45898: 27.1; wedged in redisplay again
Date: Sun, 12 Jun 2022 12:48:50 +0300

> From: Lars Ingebrigtsen <larsi <at> gnus.org>
> Date: Fri, 10 Jun 2022 11:02:06 +0200
> Cc: Emacs-hacker2018 <at> jovi.net, 45898 <at> debbugs.gnu.org
> 
> Eli Zaretskii <eliz <at> gnu.org> writes:
> 
> > I don't think it's a very good idea to switch buffers behind user's
> > back.  It is better to tell the user there's a problem and let them do
> > whatever is right for them.
> >
> > But yes, we could also consider something like that -- if we find a
> > safe way of doing it.
> 
> The scenario here is that the user is hitting `C-g' repeatedly while in
> redisplay, so it's not exactly behind the user's back...

I prefer a solution whereby Emacs discovers the problem automatically,
leaving C-g for "other circumstances".  After all, how hard can it be
to figure out that some buffer or window takes too long to redisplay?

> Finding a safe way to interrupt redisplay is the problem, though.

I have an idea and will work on it soon.

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