From owner-freebsd-hackers Fri Mar 5 11: 3: 9 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from iquest3.iquest.net (iquest3.iquest.net [209.43.20.203]) by hub.freebsd.org (Postfix) with SMTP id F35F8151BB for ; Fri, 5 Mar 1999 11:03:07 -0800 (PST) (envelope-from toor@y.dyson.net) Received: (qmail 4897 invoked from network); 5 Mar 1999 19:02:47 -0000 Received: from dyson.iquest.net (HELO y.dyson.net) (198.70.144.127) by iquest3.iquest.net with SMTP; 5 Mar 1999 19:02:47 -0000 Received: (from toor@localhost) by y.dyson.net (8.9.1/8.9.1) id OAA00724; Fri, 5 Mar 1999 14:02:36 -0500 (EST) Message-Id: <199903051902.OAA00724@y.dyson.net> Subject: Re: lockf and kernel threads In-Reply-To: <199903051841.KAA49799@apollo.backplane.com> from Matthew Dillon at "Mar 5, 99 10:41:07 am" To: dillon@apollo.backplane.com (Matthew Dillon) Date: Fri, 5 Mar 1999 14:02:36 -0500 (EST) Cc: hasty@rah.star-gate.com, tlambert@primenet.com, dyson@iquest.net, dick@tar.com, jplevyak@inktomi.com, hackers@FreeBSD.ORG From: "John S. Dyson" Reply-To: dyson@iquest.net X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Matthew Dillon said: > : > :Thats probably true however for delivery of an AST I don't thing that we > :need priviliged instructions --- I could be wrong. > : > : Amancio > > Little things like, ohhhhh disabling interrupts. Accessing the MMU > registers, flushing the TLB, etc..... believe me, ring 1 and ring 2 > is utterly useless for anything FreeBSD wants to run in supervisor mode. > AST's could be simulated, but it is just more hair added to an already sufficient set of hair. -- John | Never try to teach a pig to sing, dyson@iquest.net | it makes one look stupid jdyson@nc.com | and it irritates the pig. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message