*BSD News Article 70508


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From: brian@awfulhak.demon.co.uk (Brian Somers)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Buffer overruns on sio1 serial device?
Date: 9 Jun 1996 01:22:54 +0100
Organization: Coverform Ltd.
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Paul Retherford (paulr@infocom.com) wrote:
: I am trying to set up a FreeBSD 2.1 server to receive incoming data
: using the high speed serial device.  The data arrives through a satellite
: feed at 115k bps.  The kernel recognizes the 16550A on sio1 at boot time, but
: I receive buffer overruns when trying to use /dev/cuaa1 or /dev/ttyd1?

: What further configuration of the device needs to happen and which is the
: correct device for incoming high speed traffic?

: Thanks,
: Paul

This shouldn't really happen unless you've got a really bad IDE
controller that's stealing the interrupt priority.  Try configuring
your serial port at IRQ 2 (if you can) and see if it makes it better.

--
Brian <brian@awfulhak.demon.co.uk>
Don't _EVER_ lose your sense of humour....