Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263227AbTEMGbx (ORCPT ); Tue, 13 May 2003 02:31:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263228AbTEMGbx (ORCPT ); Tue, 13 May 2003 02:31:53 -0400 Received: from ns.virtualhost.dk ([195.184.98.160]:19154 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S263227AbTEMGbt (ORCPT ); Tue, 13 May 2003 02:31:49 -0400 Date: Tue, 13 May 2003 08:44:31 +0200 From: Jens Axboe To: Alan Cox , Bartlomiej Zolnierkiewicz , Linus Torvalds , Linux Kernel Mailing List Subject: Re: [PATCH] 2.5 ide 48-bit usage Message-ID: <20030513064431.GN17033@suse.de> References: <20030507175033.GR823@suse.de> <20030507201949.GW823@suse.de> <20030508075609.GJ823@suse.de> <1052391717.10037.5.camel@dhcp22.swansea.linux.org.uk> <20030508120145.GR823@suse.de> <20030512214123.GA3849@matchmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030512214123.GA3849@matchmail.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1477 Lines: 33 On Mon, May 12 2003, Mike Fedyk wrote: > On Thu, May 08, 2003 at 02:01:45PM +0200, Jens Axboe wrote: > > On Thu, May 08 2003, Alan Cox wrote: > > > On Iau, 2003-05-08 at 08:56, Jens Axboe wrote: > > > > That part is added, I still kept it at 65535 though akin to how we don't > > > > use that last sector in 28-bit commands either. For 48-bit commands this > > > > is totally irelevant, 32MiB or 32MiB-512b doesn't matter either way. > > > > > > Actually I changed the LBA28 code to use the last sector a while ago. It > > > has (unsuprisingly) caused zero problems because other OS's also > > > generate such requests. > > > > That's great, if you remember that was my requirement for usage of the > > last sector, that the Other OS used it. If it does, it can't be buggy. > > Yes, there is documentation in ntfs-tools about the kernel not being able to > address the last sector like the Other OS does, and recommending to run > chkdsk immediately after creating a new ntfs volume under Linux... Completely different thing :-) In my mail, 'the last sector' means issuing ata commands with 255 or 256 (the last one) sectors. 256 is special because it requires 0 for number of sectors, since it's a byte value. -- Jens Axboe - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/