Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759515AbYAFWru (ORCPT ); Sun, 6 Jan 2008 17:47:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758169AbYAFWrl (ORCPT ); Sun, 6 Jan 2008 17:47:41 -0500 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:38639 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1755686AbYAFWrk (ORCPT ); Sun, 6 Jan 2008 17:47:40 -0500 Date: Sun, 6 Jan 2008 22:43:40 +0000 From: Alan Cox To: Linda Walsh Cc: Robert Hancock , LKML , linux-ide@vger.kernel.org Subject: Re: SATA kernel-buffered read VERY slow (not raid, Promise TX300 card); 2.6.23.1(vanilla) Message-ID: <20080106224340.3aff293c@lxorguk.ukuu.org.uk> In-Reply-To: <47813926.6010908@tlinx.org> References: <477D9B6E.7060000@shaw.ca> <477D9D66.3080502@tlinx.org> <477DA05F.4080503@shaw.ca> <47813926.6010908@tlinx.org> X-Mailer: Claws Mail 3.2.0 (GTK+ 2.12.3; x86_64-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 946 Lines: 27 On Sun, 06 Jan 2008 12:25:10 -0800 Linda Walsh wrote: > Robert Hancock wrote: > > > > If this is a Seagate, I believe that they don't have AAM enabled on > > any of their newer drives (something about a lawsuit for patent > > infringement on that feature, or something). Quite likely they don't > > support that power management command, either. > -- > Do you have a source for this -- haven't heard of such a conflict -- There were patent questions around AAM. There are some discussions on the t13 archive then it goes silent and nothing is ever said again, which I imagine is when it got lawyered. > besides, doesn't > ATA-7 require some of those functions? No. Alan -- 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/