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Date:      Sun,  1 Feb 98 13:16:51 +0100
From:      Ben Stuyts <benst@terminus.stuyts.nl>
To:        Bruce Evans <bde@zeta.org.au>
Cc:        freebsd-smp@FreeBSD.ORG
Subject:   Re: Trouble with high-speed sio
Message-ID:  <199802011216.NAA25533@daneel.stuyts.nl>
In-Reply-To: <199802010817.TAA03148@godzilla.zeta.org.au>
References:  <199802010817.TAA03148@godzilla.zeta.org.au>

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On Sun, 1 Feb 1998, Bruce Evans wrote:

> >sio2: 125 more interrupt-level buffer overflows (total 374)
> >
> >sio2 runs at 460 KBaud. (Kernel thinks 115 KB)
> >sio3 is unused / not-connected.
>
> 460000 bps is not supported.  There is only enough interrupt-level
> buffering for 256000 bps at best.  crtscts should reduce the flow
> to at most about 192000 bps if it works.

Thanks. I've halved the clock speed of the uart card to 230400, and I don't  
get the errors anymore.

Ben



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