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