From owner-freebsd-hackers@FreeBSD.ORG Wed Oct 22 15:41:45 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B7E3D16A4B3 for ; Wed, 22 Oct 2003 15:41:45 -0700 (PDT) Received: from priv-edtnes51.telusplanet.net (defout.telus.net [199.185.220.240]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9E34A44011 for ; Wed, 22 Oct 2003 15:40:45 -0700 (PDT) (envelope-from sh@bel.bc.ca) Received: from antalus ([207.81.9.161]) by priv-edtnes51.telusplanet.net (InterMail vM.5.01.06.05 201-253-122-130-105-20030824) with SMTP id <20031022224043.NQRN23657.priv-edtnes51.telusplanet.net@antalus> for ; Wed, 22 Oct 2003 16:40:43 -0600 Message-ID: <005b01c398ed$87070080$0300000a@antalus> From: "Sean Hamilton" To: Date: Wed, 22 Oct 2003 15:40:43 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Subject: Passthrough block device X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Oct 2003 22:41:46 -0000 Does FreeBSD support a device that will allow for the passing of all reads and writes on it to a userland application? I wish to handle swapping myself, preferably without any kernel hacking. What would happen if the kernel decided to swap out such a process?