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To: Julian Elischer <julian@elischer.org>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Tue, 27 May 2008 00:45:31 MST."
	<483BBC1B.6040905@elischer.org> 
Date: Tue, 27 May 2008 08:03:59 +0000
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Cc: Ed Schouten <ed@80386.nl>, current@FreeBSD.org, arch@FreeBSD.org,
	Robert Watson <rwatson@FreeBSD.org>,
	Ade Lovett <ade@FreeBSD.org>, net@FreeBSD.org,
	"Bruce M. Simpson" <bms@FreeBSD.org>
Subject: Re: HEAD UP: non-MPSAFE network drivers to be disabled 
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In message <483BBC1B.6040905@elischer.org>, Julian Elischer writes:

>However the line discipline was a very convenient place for netgraph 
>to hook in without leaving the kernel. If you can supply an equally
>effective way to hook into a serial device in such a way that it 
>appears to be a source/sink of bits then I don't care about
>line disciplins, but until you have a suggested replacement then leave 
>them alone. There are MANY people using mpd with the netgraph ppp 
>moduel hooked directly to the serial port via the netgraph line 
>discipline.

What exact value of "MANY" are we talking about here, and do you
have any evidence that the systems in question will be updated
to FreeBSD-8.0-RELEASE or later ?

If, contrary to my expectation, that you can show a real market
here, then we should make a better interface than linedisc for
such hooks into serial ports.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.