Re: »No more PTYs« message

[Samuel Thibault]

Samuel Thibault, le Fri 25 May 2012 11:39:53 +0200, a écrit :
> Thomas Schwinge, le Fri 25 May 2012 11:34:45 +0200, a écrit :
> > We've been seeing this on darnassus several times: try to allocate a PTY
> > (log in via SSH, or start screen, etc.), and get a »No more PTYs«
> > message.  Now the same happend on flubber: I could log in via SSH, but
> > starting screen failed.  I did a »ls -l /dev/tty* /dev/pty*« (which will
> > start all translators due to »stat«ing the nodes) -- and then I was able
> > to start screen.  Strange?
> 
> Usually I've seen that *not* because term translators are not started,
> but because they are all somehow busy, and openpty doesn't want to use
> them for some reason. I would kill them and then it'd be ok again. ls
> might have another side effect resulting to curing the issue too. I
> haven't had time to investigate further.

Also, it only happens on some boxes, on buildds and my hurd box, I don't
have the issue. It's very simple to test actually: log off from the
machine, log on again, and check whether ssh was able to reuse the tty
you had.

Samuel