From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760042AbXEVDXS (ORCPT ); Mon, 21 May 2007 23:23:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755359AbXEVDXJ (ORCPT ); Mon, 21 May 2007 23:23:09 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:48086 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755116AbXEVDXH (ORCPT ); Mon, 21 May 2007 23:23:07 -0400 Message-ID: <46526216.2040000@garzik.org> Date: Mon, 21 May 2007 23:23:02 -0400 From: Jeff Garzik User-Agent: Thunderbird 1.5.0.10 (X11/20070302) MIME-Version: 1.0 To: "George T. Joseph (development)" CC: linux-ide@vger.kernel.org, LKML Subject: Re: [PATCH] ahci: add Marvell support (WIP) References: <20070519054704.GA352@havoc.gtf.org> <22E26940476D1E48AA6F292B5316C9C33823@bes1.peakin.com> In-Reply-To: <22E26940476D1E48AA6F292B5316C9C33823@bes1.peakin.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.3 (----) X-Spam-Report: SpamAssassin version 3.1.8 on srv5.dvmed.net summary: Content analysis details: (-4.3 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org George T. Joseph (development) wrote: > Hi Jeff, > > Two issues with the patch... > > msi has to be disabled for the Marvell or the driver load will throw a > "nobody cared" message and eventually hang before discovering all the > drives. > > Light I/O works fine but heavy I/O generates > "exception Emask 0x0 Sact 0xb Serr 0x0 action 0x2 frozen" > Then softreset and identify failures. > Adding AHCI_FLAG_NO_NCQ to the flags fixes this. > > I've been running with both these changes over your original patch for a > few months now with no problems. This is on a very heavily used 4 drive > mdraid10 array. I poked Marvell about this, we'll see what they say. If I don't hear anything useful, I'll push the no-MSI, no-NCQ version upstream. Jeff