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Date:      Tue, 10 Jan 1995 07:40:25 -0600 (CST)
From:      Steve Bartling <bartling@ibmoto.com>
To:        bartling@ibmoto.com (Steve Bartling)
Cc:        freebsd-questions@FreeBSD.org, freebsd-hackers@FreeBSD.org
Subject:   Serial Upgrade Problems ( spontaneous reboots )
Message-ID:  <199501101340.HAA20139@bartling.ibmoto.com>
In-Reply-To: <199501091455.IAA25550@bartling.ibmoto.com> from "Steve Bartling" at Jan 9, 95 08:55:00 am

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I had two crusty on 16450 uarts ( circa 1984 ) that had been
working flawlessy. Upon upgrading FreeBSD from 1.1R to 2.0R,
I began to get occasional SIO overflows.

So ... I "upgraded" my serial port to a "Enhance" 2S 1P port
card that has an ASIC on it to provide dual "16550AFN compatibility".
It uses the StarTek chipset ( ooohhh, a NAME BRAND ! ).

I can transfer files using Procomm under MSDOG, and I can establish
connections to other machines under FreeBSD 2.0R using cu.

But ... after I slattach, I no longer receive any packets in response
to bootptest, ping, etc. 

And to make life even more interesting, If I kill the slattach process,
my machine locks up and then spontaneously reboots.

If I change the serial cards back to my old crusty favorites, this
problem goes away.

- Steve Bartling

P.S. Another friend of mine is having the exact same problems
     but with a different serial card.




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