Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262794AbUDAJJW (ORCPT ); Thu, 1 Apr 2004 04:09:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262807AbUDAJIT (ORCPT ); Thu, 1 Apr 2004 04:08:19 -0500 Received: from witte.sonytel.be ([80.88.33.193]:65434 "EHLO witte.sonytel.be") by vger.kernel.org with ESMTP id S262794AbUDAJHU (ORCPT ); Thu, 1 Apr 2004 04:07:20 -0500 Date: Thu, 1 Apr 2004 11:06:40 +0200 (MEST) From: Geert Uytterhoeven To: Jeff Garzik cc: Andries Brouwer , Andre Hedrick , Bartlomiej Zolnierkiewicz , Lionel Bergeret , JunHyeok Heo , Linux Kernel Development , linux-ide@vger.kernel.org Subject: Re: [PATCH] Bogus LBA48 drives In-Reply-To: <406B14C1.8000708@pobox.com> Message-ID: References: <20040331183410.GA3796@pclin040.win.tue.nl> <406B14C1.8000708@pobox.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1384 Lines: 35 On Wed, 31 Mar 2004, Jeff Garzik wrote: > Andries Brouwer wrote: > > Hmm. I read in my copy of ATA7: > > > > 6.16.55 Words (103:100): Maximum user LBA for 48-bit Address feature set > > Words (103:100) contain a value that is one greater than the maximum LBA > > in user accessable space when the 48-bit Addressing feature set is supported. > > The maximum value that shall be placed in this field is 0000FFFFFFFFFFFFh. > > Support of these words is mandatory if the 48-bit Address feature set is supported. > > > > Do you read differently? > > The errata is, one needs to check that field for zero, and use the other > one if so... Which is not sufficient for `my' drives, since I get disk errors if I just use the other capacity field and don't disable LBA48 completely. I'll check the ATA specs myself, if I find some time... Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds - 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/