Subject: Re: fifo overruns
To: Scott Reynolds <scottr@og.org>
From: Bill Studenmund <wrstuden@loki.stanford.edu>
List: port-mac68k
Date: 07/30/1997 10:30:05
>
> On Tue, 29 Jul 1997, Colin Wood wrote:
>
> > I recently upgraded to recent -current. With a kernel compiled
> > from July 26th sources and binaries from the next day, I get the
> > following message:
[overruns]
> Do you have any flow control enabled? I don't see this on my GV Platinum
> (28.8Kbps), at all, and I run my port at 57600. I use the `crtscts'
> option to pppd to enable inbound flow control.
?? The in-tree driver doesn't support inbound flow control yet. Just
outbound (us hushing when the other side asks).
When I fired up the inbound flow control mode on the new driver, I
didn't get any overruns at all. Even at 57600 baud, nearly saturated,
with compression fired up (so I got 12 kB/s transmission).
I suspect that the act of reporting an overrun can delay things enough
to generate another. :-)
Take care,
Bill