In article <67501@ut-emx.uucp> ifai645@ccwf.cc.utexas.edu (Paul C. Janzen) writes:
quoted text
>I am used to using ^S / ^Q for "flow control" on a terminal; that is, 
>if something is scrolling by, and I want to see it, my fingers hit 
>the ^S key to stop it. Well, this didn't work at first in Linux, so 
>I got stty and did a 
>       stty ixon
>which should have done the trick, I thought.
>
>So I typed 
>       cat huge_file
>and about two pages into it I hit ^S. Great! It stopped! ^Q -restarted
>it. Ohmighod, I thought I had it made.
>
>BZZZZT. Thank you for playing.
> [ deleted ]

Yes, XON/XOFF isn't quite ready in 0.12 - this in one more of the fixes
for 0.13. The problem is simply that ^Q doesn't correctly wake up the
writing process, so only the buffer already written will be output, and
then the process just sleeps away... Nothing bad happens, it's just not
noticing that it can start writing again.

In my version (and thus 0.13) this is corrected, and ^S/^Q work all
right. There are some other rewrites in there too: tty-io has been
cleaned up a bit.

                Linus