bug#9800: Incomplete truncated file buffers from the /proc filesystem

[Eli Zaretskii]

> From: Juri Linkov <juri@jurta.org>
> Date: Fri, 04 Nov 2011 11:36:01 +0200
> Cc: Paul Eggert <eggert@cs.ucla.edu>, 9800@debbugs.gnu.org
> 
> >> It strikes me that regular files can go as you read them, too,
> >> and that Emacs is not doing this properly.  That is, Emacs should
> >> be fixed so that it continues to read from a growing regular file
> >> until a proper EOF is reached (i.e., until read returns 0).
> >
> > Sounds like a good idea, but remember to bail out some time before
> > reading the infinitely big files to the very end.  :-)
> 
> Maybe limit the reading by the value of `large-file-warning-threshold'.

IMO, that value is ridiculously low for such use.  Maybe multiply it
by some large factor.