From owner-freebsd-hackers Mon Sep 20 8:49:40 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from sasami.jurai.net (sasami.jurai.net [63.67.141.99]) by hub.freebsd.org (Postfix) with ESMTP id CFD7A14CA6 for ; Mon, 20 Sep 1999 08:49:38 -0700 (PDT) (envelope-from winter@jurai.net) Received: from localhost (winter@localhost) by sasami.jurai.net (8.8.8/8.8.7) with ESMTP id LAA01869; Mon, 20 Sep 1999 11:49:21 -0400 (EDT) Date: Mon, 20 Sep 1999 11:49:20 -0400 (EDT) From: "Matthew N. Dodd" To: Warner Losh Cc: Matthew Dillon , Chuck Robey , Julian Elischer , Wayne Cuddy , FreeBSD Hackers List Subject: Re: what is devfs? In-Reply-To: <199909200802.CAA16206@harmony.village.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG 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 | To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message