From owner-freebsd-arch Thu Dec 14 15:16:41 2000 From owner-freebsd-arch@FreeBSD.ORG Thu Dec 14 15:16:37 2000 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from hand.dotat.at (sfo-gw.covalent.net [207.44.198.62]) by hub.freebsd.org (Postfix) with ESMTP id 74DAE37B400; Thu, 14 Dec 2000 15:16:37 -0800 (PST) Received: from fanf by hand.dotat.at with local (Exim 3.15 #3) id 146hbx-0005Rn-00; Thu, 14 Dec 2000 23:16:29 +0000 Date: Thu, 14 Dec 2000 23:16:29 +0000 From: Tony Finch To: Terry Lambert Cc: Alfred Perlstein , Matt Dillon , Kirk McKusick , arch@FreeBSD.ORG, net@FreeBSD.ORG Subject: Re: patch to cleanup inflight desciptor handling. Message-ID: <20001214231629.K92196@hand.dotat.at> References: <20001213141917.Q16205@fw.wintelcom.net> <200012142308.QAA15345@usr08.primenet.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: <200012142308.QAA15345@usr08.primenet.com> Organization: Covalent Technologies, Inc Sender: fanf@dotat.at Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Terry Lambert wrote: > >SVR4 and Solaris avoid the problem entirely by ensuring that >each reference to a vnode pointer counts as an "open", and >the vnode can not be discarded until a 1->0 reference count >change (grep for VHOLD/VRELE/VREF in the Solaris headers). FreeBSD does this too. It doesn't solve the circular reference problem, though (hence the AI Koan). Tony. -- f.a.n.finch fanf@covalent.net dot@dotat.at "Then they attacked a town. A small town, I'll admit. But nevertheless a town of people. People who died." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message