From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757864AbYABGTd (ORCPT ); Wed, 2 Jan 2008 01:19:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755556AbYABGTY (ORCPT ); Wed, 2 Jan 2008 01:19:24 -0500 Received: from srv5.dvmed.net ([207.36.208.214]:52122 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755095AbYABGTX (ORCPT ); Wed, 2 Jan 2008 01:19:23 -0500 Message-ID: <477B2CE4.8070602@garzik.org> Date: Wed, 02 Jan 2008 01:19:16 -0500 From: Jeff Garzik User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: Tejun Heo CC: Robert Hancock , Gabor Gombas , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, kluo@nvidia.com, AMartin@nvidia.com, pchen@nvidia.com Subject: Re: sata_nv + ADMA + Samsung disk problem References: <20070808120804.GB5257@boogie.lpds.sztaki.hu> <20080101164416.GA29574@boogie.lpds.sztaki.hu> <477B0429.7040909@gmail.com> <477B0CFD.1030603@shaw.ca> <477B10F2.9000107@shaw.ca> <477B1233.3090706@gmail.com> In-Reply-To: <477B1233.3090706@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.4 (----) X-Spam-Report: SpamAssassin version 3.2.3 on srv5.dvmed.net summary: Content analysis details: (-4.4 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Tejun Heo wrote: > Thanks a lot for the detailed explanation. Nvidia ppl, any ideas? > FLUSH is used regularly. We really need to fix this. I reiterate my opinion :) ... We should remove ADMA support from sata_nv. It's only in a few chips, it's not appearing in any new chips, and nasty problems have lingered since ADMA support was introduced. Definitely sounds like we should disable ADMA by default for 2.6.24-rc, too. Jeff