*BSD News Article 12814


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Newsgroups: comp.os.386bsd.questions
Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!agate!howland.reston.ans.net!wupost!cs.utexas.edu!hellgate.utah.edu!fcom.cc.utah.edu!cs.weber.edu!terry
From: terry@cs.weber.edu (A Wizard of Earth C)
Subject: Re: smc elite+16 problem
Message-ID: <1993Mar10.202708.1051@fcom.cc.utah.edu>
Sender: news@fcom.cc.utah.edu
Organization: Weber State University  (Ogden, UT)
References: <1n3c36$aav@Germany.EU.net>
Date: Wed, 10 Mar 93 20:27:08 GMT
Lines: 37

In article <1n3c36$aav@Germany.EU.net> <bs@Germany.EU.net> "Bernard Steiner" writes:
>There's these two PCs, one of them an oldisch 386 and the other a newish 486.
>Both have this SMC ELite plus 16 installed; the jumper settings such that
>irq 10 with i/o address 0x300 and ram area at 0xcc000 are used.
>
>Both of the machines recognize the cards on boot, it is possible to
>ifconfig them up and indeed ping a few packets to and fro. Alas, after
>telnetting from the 486 into the 386 and getting about half a screen full
>of output, the connection hangs and the 486 box tells us "rejected 65531".
>Okay, so I found the appropriate printf in if_we.c, but it doesn't mean
>anything to me :-( /* hey, when's that book due ? */
>
>The 386 box does not show these symptoms.
[ ... ]
>Any clues ? Please ?

Turn off the cache on the 486.  Any areas that are DMAed to by cards can't
be cached and continue to work.  The idea of caching is predicated on the
cache being invalidated correctly, something which is probably not done
by card-initiated DMA.

>BTW what's the latest version of the FAQ ? We tend to mirror both agate and
>gatekeeper but the latest version we have is August 1992. Hmm.

That's the latest.  Other people are working on an updated version.


					Terry Lambert
					terry@icarus.weber.edu
---
Any opinions in this posting are my own and not those of my present
or previous employers.
-- 
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