Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758062AbXI3Pnv (ORCPT ); Sun, 30 Sep 2007 11:43:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756527AbXI3Pnm (ORCPT ); Sun, 30 Sep 2007 11:43:42 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:52339 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753807AbXI3Pnm (ORCPT ); Sun, 30 Sep 2007 11:43:42 -0400 Message-ID: <46FFC42A.9080300@garzik.org> Date: Sun, 30 Sep 2007 11:43:38 -0400 From: Jeff Garzik User-Agent: Thunderbird 2.0.0.5 (X11/20070727) MIME-Version: 1.0 To: Paolo Ornati CC: Alan Cox , Tejun Heo , Linux Kernel Mailing List , linux-ide@vger.kernel.org Subject: Re: [PATCH] blacklist NCQ on Seagate Barracuda ST380817AS References: <20070930160548.235be972@localhost> <20070930152908.1f58d39d@the-village.bc.nu> <20070930164610.20818867@localhost> <46FFBB2D.6060004@garzik.org> <20070930172859.7fd44eab@localhost> In-Reply-To: <20070930172859.7fd44eab@localhost> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.4 (----) X-Spam-Report: SpamAssassin version 3.1.9 on srv5.dvmed.net summary: Content analysis details: (-4.4 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 905 Lines: 29 Paolo Ornati wrote: > On Sun, 30 Sep 2007 11:05:17 -0400 > Jeff Garzik wrote: > >>> I have this problem only with XFS, and even with XFS it goes away >>> mounting with "nobarrier"... >> This last is an interesting datapoint. >> >> I wonder if libata has a generic problem with NCQ + FLUSH CACHE. >> >> What happens if you enable the 'fua' module parameter? (libata.fua on >> kernel command line, if built in) > > it isn't supported here: > sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA Did you actually try my suggestion? That message is normal, because libata defaults to FUA==off. Jeff - 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/