From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Greg Freemyer" Subject: Re: [git patches] libata fixes Date: Fri, 31 Oct 2008 09:20:36 -0400 Message-ID: <87f94c370810310620u77f2b31r85b196d7261ef75f@mail.gmail.com> References: <20081031054949.GA10474@havoc.gtf.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from yw-out-2324.google.com ([74.125.46.29]:18911 "EHLO yw-out-2324.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750869AbYJaNUh (ORCPT ); Fri, 31 Oct 2008 09:20:37 -0400 In-Reply-To: <20081031054949.GA10474@havoc.gtf.org> Content-Disposition: inline Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jeff Garzik Cc: Andrew Morton , Linus Torvalds , linux-ide@vger.kernel.org, LKML On Fri, Oct 31, 2008 at 1:49 AM, Jeff Garzik wrote: > > Notes: > > 1) 1.5TB drive fix from Roland > > 2) Tejun's sata_via brings a non-working via configuration thanks to a > new facility also being used in recent (ICH9/10) ata_piix. > > Change is longer than one might like, but it accurately describes the > hardware now, the previous stuff wasn't working, and the newly added > support code shouldn't touch non-broken VIA controllers. > > > > Please pull from 'upstream-linus' branch of > master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git upstream-linus > > to receive the following updates: > > drivers/ata/ata_piix.c | 1 - > drivers/ata/libata-core.c | 11 +++- > drivers/ata/sata_via.c | 155 +++++++++++++++++++++++++++++++++++++++++---- > include/linux/libata.h | 1 + > 4 files changed, 152 insertions(+), 16 deletions(-) > > Jens Axboe (1): > libata: add whitelist for devices with known good pata-sata bridges > > Randy Dunlap (1): > ATA: remove excess kernel-doc notation > > Roland Dreier (1): > libata: Avoid overflow in ata_tf_to_lba48() when tf->hba_lbal > 127 > > Tejun Heo (1): > sata_via: fix support for 5287 > diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c > index 2ff633c..82af701 100644 > --- a/drivers/ata/libata-core.c > +++ b/drivers/ata/libata-core.c > @@ -1268,7 +1268,7 @@ u64 ata_tf_to_lba48(const struct ata_taskfile *tf) > > sectors |= ((u64)(tf->hob_lbah & 0xff)) << 40; > sectors |= ((u64)(tf->hob_lbam & 0xff)) << 32; > - sectors |= (tf->hob_lbal & 0xff) << 24; > + sectors |= ((u64)(tf->hob_lbal & 0xff)) << 24; > sectors |= (tf->lbah & 0xff) << 16; > sectors |= (tf->lbam & 0xff) << 8; > sectors |= (tf->lbal & 0xff); That looks really serious. What happens with all previous / stable kernels when connecting up a 1.5TB drive and the user tries to use the last portion of the drive? Greg -- Greg Freemyer Litigation Triage Solutions Specialist http://www.linkedin.com/in/gregfreemyer First 99 Days Litigation White Paper - http://www.norcrossgroup.com/forms/whitepapers/99%20Days%20whitepaper.pdf The Norcross Group The Intersection of Evidence & Technology http://www.norcrossgroup.com