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Date:      Wed, 02 May 2001 10:51:35 +1000
From:      Peter Jeremy <peter.jeremy@alcatel.com.au>
To:        John Merryweather Cooper <jmcoopr@webmail.bmi.net>
Cc:        FreeBSD-STABLE Mailing List <freebsd-stable@FreeBSD.ORG>
Subject:   Re: problem with plip stealing clock
Message-ID:  <20010502105135.O59150@gsmx07.alcatel.com.au>
In-Reply-To: <3AEF32C5.F36D2EE3@webmail.bmi.net>; from jmcoopr@webmail.bmi.net on Tue, May 01, 2001 at 03:03:49PM -0700
References:  <3AED84DB.8D241BCF@webmail.bmi.net> <20010501171807.M59150@gsmx07.alcatel.com.au> <3AEED69E.F6EC1EAD@webmail.bmi.net> <20010502072950.N59150@gsmx07.alcatel.com.au> <3AEF32C5.F36D2EE3@webmail.bmi.net>

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On 2001-May-01 15:03:49 -0700, John Merryweather Cooper <jmcoopr@webmail.bmi.net> wrote:
>I'm going to try to slash the MTU way down from 1500 first.  If that
>doesn't do it, I'll be interested in enabling the "interrrupt per
>nibble" approach.

Note that the code to do this doesn't exist - you'll need to re-write
/sys/dev/ppbus/if_plip.c:lp_intr() and remove the splhigh() from
/sys/dev/ppbus/if_plip.c:lpoutput()

>Hmm, I'll have to take a look at that code--didn't realize plip and slip
>shared code (seems logical though).

They don't directly share code.  They both share a reliance on both
the TTY and NET subsystems.

Peter

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