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Date: Tue, 23 May 2006 09:55:54 -0400
To: "Daniel O'Connor" <doconnor@gsoft.com.au>
From: Mike Tancsa <mike@sentex.net>
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Cc: freebsd-stable@freebsd.org
Subject: Re: Odd RS232 problem
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At 05:53 AM 23/05/2006, Daniel O'Connor wrote:
>On Saturday 13 May 2006 22:00, Holger Kipp wrote:
>
> > If you encounter silo overflows, you might need to increase
> > cp4ticks in sio.c, eg
> > - cp4ticks = speed / 10 / hz * 4;
> > + cp4ticks = speed / 10 / hz * 40;
> > and/or you might want to change hz from 1000 back to 100.
>
>OK, I'll try it.

This fixes the overflows for me as well. I have a number of boxes out 
in the field running with this local modification (40 vs 4). Without 
it, I have problems running a PCI modem at speeds better than 9600 
without causing overflows.

         ---Mike