From owner-freebsd-hackers Fri Mar 5 12: 5: 6 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from apollo.backplane.com (apollo.backplane.com [209.157.86.2]) by hub.freebsd.org (Postfix) with ESMTP id B93BC15299 for ; Fri, 5 Mar 1999 12:04:51 -0800 (PST) (envelope-from dillon@apollo.backplane.com) Received: (from dillon@localhost) by apollo.backplane.com (8.9.3/8.9.1) id MAA52547; Fri, 5 Mar 1999 12:04:33 -0800 (PST) (envelope-from dillon) Date: Fri, 5 Mar 1999 12:04:33 -0800 (PST) From: Matthew Dillon Message-Id: <199903052004.MAA52547@apollo.backplane.com> To: Amancio Hasty Cc: Terry Lambert , dyson@iquest.net, dick@tar.com, jplevyak@inktomi.com, hackers@FreeBSD.ORG, hasty@rah.star-gate.com Subject: Re: lockf and kernel threads References: <199903051959.LAA82525@rah.star-gate.com> Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG : :> Little things like, ohhhhh disabling interrupts. Accessing the MMU : :And I supposed that we can not provide a mechanism or layer to deliver :AST which does not require disabling interrupts, etc... : : Amancio Not unless you want to rewrite the kernel. But it's actually more the inability to access the MMU, cache control, and other priv instructions that pretty much trashes the usefullness of ring 1 & 2. -Matt Matthew Dillon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message