Date: Sun, 19 Sep 1999 15:52:26 -0700 (PDT) From: Julian Elischer <julian@whistle.com> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Chuck Robey <chuckr@mat.net>, Wayne Cuddy <wayne@crb-web.com>, FreeBSD Hackers List <freebsd-hackers@FreeBSD.ORG> Subject: Re: what is devfs? Message-ID: <Pine.BSF.4.05.9909191549040.19879-100000@home.elischer.org> In-Reply-To: <199909192152.OAA75273@apollo.backplane.com>
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as far as I know DEVFS itself is working just fine.. there was some problem with mfs and vn devices at some stage as they used 'dummy' vnodes that were set up to look like device nodes, but mfs and vn tried to use incestuous knowledge which was no longer true and crashed.. I believe that PHKs latest chages may have made it in-necessary for mfs and vn to do that any more.. I'll investigate and get back to you.. julian On Sun, 19 Sep 1999, Matthew Dillon wrote: > > :On Sat, 18 Sep 1999, Julian Elischer wrote: > : > :> DEVFS itself works fine however a subsystem it required to be a useful > :> abstraction was vandalised and stripped out by some people who "didn't get > :> it" and it has not yet been replaced by equivalent code. > : > :It seems more correct (to me) to state that there was a furious > :disagreement over whether or not to allow some memory of file permissions > :in devfs. Since there was never any agreement, DEVFS has smoldered. I > :think there's general agreement it would be a good thing to have, but that > :argument over how to keep user configurations must be handled. > : > :Saying it was dumped by people who "didn't get it" isn't quite correct, > :just people who didn't agree with your viewpoint on permissions. It > :wasn't only your viewpoint, I know there were many other highly qualified > :folks who agreed with you, but there wasn't much spirit of compromise > :evinced. > : > : > :---------------------------------------------------------------------------- > :Chuck Robey | Interests include C programming, Electronics, > :213 Lakeside Dr. Apt. T-1 | communications, and signal processing. > > Well, I tried using it months ago but it crashed the machine a lot :-) > Those bugs are supposedly fixed now, right? Can I go back to using it? > > It seems to me that we have to be able to change ownership/modes for > DEVFS devices to deal with tty's and pty's properly. Are people arguing > over that or are people arguing over whether the changes should be > persistent or not? Personally I don't care if they aren't persistent, > it's a simple matter to set things up in rc.local. > > I really want to be able to use DEVFS for my diskless startup code. Right > now I have to wave my hands and do some magic to make /dev work right > for diskless BOOTP startups. > > -Matt > Matthew Dillon > <dillon@backplane.com> > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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