Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752805AbYKPJMF (ORCPT ); Sun, 16 Nov 2008 04:12:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751665AbYKPJLo (ORCPT ); Sun, 16 Nov 2008 04:11:44 -0500 Received: from lucidpixels.com ([75.144.35.66]:42500 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751572AbYKPJLm (ORCPT ); Sun, 16 Nov 2008 04:11:42 -0500 Date: Sun, 16 Nov 2008 04:11:40 -0500 (EST) From: Justin Piszcz To: Tejun Heo cc: Alan Cox , Robert Hancock , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, linux-raid@vger.kernel.org Subject: Re: 2.6.27.6 question: ata_sff_hsm_move: ata15 (why always ata15)? In-Reply-To: <491FBA29.3000803@kernel.org> Message-ID: References: <491E4092.5030804@shaw.ca> <20081115103424.34f01370@lxorguk.ukuu.org.uk> <491FBA29.3000803@kernel.org> User-Agent: Alpine 1.10 (DEB 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1277 Lines: 32 On Sun, 16 Nov 2008, Tejun Heo wrote: > Alan Cox wrote: >> On Fri, 14 Nov 2008 21:22:58 -0600 >> Robert Hancock wrote: >> >>> Justin Piszcz wrote: >>>> I am trying to find out what the root cause of this error/problem is: >>>> https://bugzilla.redhat.com/show_bug.cgi?id=462425 >>> The problem is that people assume that timeouts with DRDY like that bug >>> refers to must be the same problem when it is often not >> >> The first stopping point is to apply the DRQ drain patch I sent to the >> list some time ago and is hopefully lined up for 2.6.29. After that point >> you can begin to look at the remaining cases, until then its hardly worth >> it. > > Is it really? For many SATA controllers, DRQ draining isn't really > necessary. PATA might be a completely different story tho. I have been running with the patch for almost 24 hours and running extensive disk tests, so far nothing but sometimes it takes a few days or more to repeat, I am continuing to test to see if the problem recurs.. Justin. -- 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/