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Date:      Mon, 20 Sep 1999 11:49:20 -0400 (EDT)
From:      "Matthew N. Dodd" <winter@jurai.net>
To:        Warner Losh <imp@village.org>
Cc:        Matthew Dillon <dillon@apollo.backplane.com>, Chuck Robey <chuckr@mat.net>, Julian Elischer <julian@whistle.com>, Wayne Cuddy <wayne@crb-web.com>, FreeBSD Hackers List <freebsd-hackers@FreeBSD.ORG>
Subject:   Re: what is devfs? 
Message-ID:  <Pine.BSF.4.10.9909201147520.20959-100000@sasami.jurai.net>
In-Reply-To: <199909200802.CAA16206@harmony.village.org>

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On Mon, 20 Sep 1999, Warner Losh wrote:
> I wrote about 50% of a devd that would sit and watch a /devfs mounted
> tree, recording changes to it and would then replay those changes when
> it was started again.  I ran into some interesting problems making it
> fast, but this work predates jdp's work on having a tree watching
> interface.  rc.local is a religious war and a security nightmare
> waiting to happen :-).

Well, with devd or devfsd its still going to read the persistant store
when started by the system on reboot; I'd imagine you'd be able to
make checkpoint intervals tunable and tell it which permission updates you
wanted to ignore and use the defaults; tty devices come to mind.

-- 
| Matthew N. Dodd  | '78 Datsun 280Z | '75 Volvo 164E | FreeBSD/NetBSD  |
| winter@jurai.net |       2 x '84 Volvo 245DL        | ix86,sparc,pmax |
| http://www.jurai.net/~winter | This Space For Rent  | ISO8802.5 4ever |



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