Le mardi 31 mai 2022 à 15:00 +0300, Eli Zaretskii a écrit :
> > Date: Tue, 31 May 2022 13:09:38 +0200
> > From:  Frédéric Giquel via "Bug reports for GNU Emacs,
> >  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> > 
> > +#if defined(GNU_LINUX) && defined(F_SETPIPE_SZ)
> > +  fcntl (inchannel, F_SETPIPE_SZ, read_process_output_max);
> > +#endif
> 
> Shouldn't this be done only for pipe connections to the subprocess?

You're right. Setting pipe size is useless for pty connection.
Here is the new patch.