From owner-freebsd-hackers Tue Mar 26 21:21:22 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from pintail.mail.pas.earthlink.net (pintail.mail.pas.earthlink.net [207.217.120.122]) by hub.freebsd.org (Postfix) with ESMTP id 47B9D37B416 for ; Tue, 26 Mar 2002 21:21:18 -0800 (PST) Received: from pool0547.cvx21-bradley.dialup.earthlink.net ([209.179.194.37] helo=mindspring.com) by pintail.mail.pas.earthlink.net with esmtp (Exim 3.33 #1) id 16q5r9-00076Q-00; Tue, 26 Mar 2002 21:20:19 -0800 Message-ID: <3CA1567A.8972441A@mindspring.com> Date: Tue, 26 Mar 2002 21:19:54 -0800 From: Terry Lambert X-Mailer: Mozilla 4.7 [en]C-CCK-MCD {Sony} (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Andrew Cc: Dan Nelson , Volker Stolz , Ian , hackers@FreeBSD.ORG Subject: Re: idprio References: <20020327092520.V24232-100000@starbug.ugh.net.au> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Andrew wrote: > On Tue, 26 Mar 2002, Terry Lambert wrote: > > > Sure it can, if the idprio process has locked a vnode trying to update > > But if system calls aren't preempted under what circumstances can a > process hold a vnode lock and then be usurped for processor? I didn't say that. But yes, locking in FreeBSD is a mess right now. Live with it: priority inversion won't be fixed until priority lending is supported. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message