From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Martin K. Petersen" Subject: Re: ATA 4 KiB sector issues. Date: Mon, 08 Mar 2010 15:01:06 -0500 Message-ID: References: <4B947393.2050002@kernel.org> <4B954224.6010208@zytor.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from rcsinet11.oracle.com ([148.87.113.123]:37106 "EHLO rcsinet11.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755598Ab0CHUDS (ORCPT ); Mon, 8 Mar 2010 15:03:18 -0500 In-Reply-To: <4B954224.6010208@zytor.com> (H. Peter Anvin's message of "Mon, 08 Mar 2010 10:29:56 -0800") Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: "H. Peter Anvin" Cc: "Martin K. Petersen" , Tejun Heo , "linux-ide@vger.kernel.org" , lkml , Daniel Taylor , Jeff Garzik , Mark Lord , tytso@mit.edu, hirofumi@mail.parknet.co.jp, Andrew Morton , Alan Cox , irtiger@gmail.com, Matthew Wilcox , aschnell@suse.de, knikanth@suse.de, jdelvare@suse.de, Karel Zak , Jim Meyering >>>>> "hpa" == H Peter Anvin writes: >> Huh, what? My homedir is on a 4KiB LBS/PBS drive and has been for ~2 >> years. hpa> For > 2 TiB drives with 4 KiB logical sectors and MS-DOS partition hpa> tables, it is. Ah, that. Already fixed, I believe. >> With regards to XP compatibility I don't think we should go too much >> out of our way to accommodate it. XP has been disowned by its master >> and I think virtualization will take care of the rest. hpa> I think that's is wildly optimistic, I don't expect XP to go away any time soon. But do I think that the number of fresh XP installs in combination with Linux will be fairly limited. And general lack of hardware enablement will eventually kill off XP on raw metal. I think it's ok that we have stop-gap solutions in place for interoperability. But I wouldn't want to waste all our resources on designing for the past. I'm much more interested in making sure that single-boot Linux is doing the right thing. >> FWIW, recent fdisk has a command line flag that will enable/disable >> DOS compatible layout. hpa> Yes, unfortunately it is still on by default. I agree that this is a don't-be-broken option and I would prefer it the other way around (I know that's the plan for the next release. I just hope the distributions get things right). -- Martin K. Petersen Oracle Linux Engineering From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755616Ab0CHUDZ (ORCPT ); Mon, 8 Mar 2010 15:03:25 -0500 Received: from rcsinet11.oracle.com ([148.87.113.123]:37106 "EHLO rcsinet11.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755598Ab0CHUDS (ORCPT ); Mon, 8 Mar 2010 15:03:18 -0500 To: "H. Peter Anvin" Cc: "Martin K. Petersen" , Tejun Heo , "linux-ide\@vger.kernel.org" , lkml , Daniel Taylor , Jeff Garzik , Mark Lord , tytso@mit.edu, hirofumi@mail.parknet.co.jp, Andrew Morton , Alan Cox , irtiger@gmail.com, Matthew Wilcox , aschnell@suse.de, knikanth@suse.de, jdelvare@suse.de, Karel Zak , Jim Meyering Subject: Re: ATA 4 KiB sector issues. From: "Martin K. Petersen" Organization: Oracle References: <4B947393.2050002@kernel.org> <4B954224.6010208@zytor.com> Date: Mon, 08 Mar 2010 15:01:06 -0500 In-Reply-To: <4B954224.6010208@zytor.com> (H. Peter Anvin's message of "Mon, 08 Mar 2010 10:29:56 -0800") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Source-IP: acsmt354.oracle.com [141.146.40.154] X-Auth-Type: Internal IP X-CT-RefId: str=0001.0A090209.4B9557AC.010F:SCFMA4539814,ss=1,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>>>> "hpa" == H Peter Anvin writes: >> Huh, what? My homedir is on a 4KiB LBS/PBS drive and has been for ~2 >> years. hpa> For > 2 TiB drives with 4 KiB logical sectors and MS-DOS partition hpa> tables, it is. Ah, that. Already fixed, I believe. >> With regards to XP compatibility I don't think we should go too much >> out of our way to accommodate it. XP has been disowned by its master >> and I think virtualization will take care of the rest. hpa> I think that's is wildly optimistic, I don't expect XP to go away any time soon. But do I think that the number of fresh XP installs in combination with Linux will be fairly limited. And general lack of hardware enablement will eventually kill off XP on raw metal. I think it's ok that we have stop-gap solutions in place for interoperability. But I wouldn't want to waste all our resources on designing for the past. I'm much more interested in making sure that single-boot Linux is doing the right thing. >> FWIW, recent fdisk has a command line flag that will enable/disable >> DOS compatible layout. hpa> Yes, unfortunately it is still on by default. I agree that this is a don't-be-broken option and I would prefer it the other way around (I know that's the plan for the next release. I just hope the distributions get things right). -- Martin K. Petersen Oracle Linux Engineering