From owner-svn-src-all@FreeBSD.ORG Tue Dec 7 21:54:22 2010 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 79AF51065674; Tue, 7 Dec 2010 21:54:22 +0000 (UTC) (envelope-from avg@freebsd.org) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 2DFC98FC1D; Tue, 7 Dec 2010 21:54:20 +0000 (UTC) Received: from porto.topspin.kiev.ua (porto-e.starpoint.kiev.ua [212.40.38.100]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id XAA09414; Tue, 07 Dec 2010 23:54:19 +0200 (EET) (envelope-from avg@freebsd.org) Received: from localhost.topspin.kiev.ua ([127.0.0.1]) by porto.topspin.kiev.ua with esmtp (Exim 4.34 (FreeBSD)) id 1PQ5UJ-000Hk9-5Z; Tue, 07 Dec 2010 23:54:19 +0200 Message-ID: <4CFEAD09.30904@freebsd.org> Date: Tue, 07 Dec 2010 23:54:17 +0200 From: Andriy Gapon User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.12) Gecko/20101029 Lightning/1.0b2 Thunderbird/3.1.6 MIME-Version: 1.0 To: Bruce Cran References: <201012072046.oB7KkB4L079555@svn.freebsd.org> In-Reply-To: <201012072046.oB7KkB4L079555@svn.freebsd.org> X-Enigmail-Version: 1.1.2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r216269 - head/sys/geom/part X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 07 Dec 2010 21:54:22 -0000 on 07/12/2010 22:46 Bruce Cran said the following: > Don't warn if a partition appears not to be aligned on a track boundary. > Modern disks use LBA and create a fake CHS geometry that doesn't have any > relation to the on-disk layout of data. You repeated that statement, so I am picking on you :-) Can someone show me how/where exactly modern drives fakes CHS geometry? Let me specifically ask that question about modern (S)ATA drives directly connected to a system (controller). My impression is at least since ATA-7 there is no mentioning of anything CHS-related in the specification. The fact that we keep reading and interpreting some historically defined bytes that are now marked as unused/reserved doesn't mean that those bytes actually mean anything. -- Andriy Gapon