From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH #upstream-fixes 2/2] libata: implement ATAPI_HORKAGE_NOPIO and apply it to GGW-H10N Date: Sun, 15 Nov 2009 17:16:45 +0900 Message-ID: <4AFFB8ED.9050404@kernel.org> References: <4857313A.1000405@kernel.org> <48573174.9050103@kernel.org> <20080617094354.338e186b@lxorguk.ukuu.org.uk> <48578080.5030605@kernel.org> <20080617095439.GA9359@lukeross.name> <20080617110450.668f37e2@lxorguk.ukuu.org.uk> <4857ADC3.3040106@kernel.org> <20080618114828.GB19903@lukeross.name> <4858F894.6030409@garzik.org> <4AFDF5A8.1050005@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:41167 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752004AbZKOIQI (ORCPT ); Sun, 15 Nov 2009 03:16:08 -0500 In-Reply-To: <4AFDF5A8.1050005@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Robert Hancock Cc: Jeff Garzik , Luke Ross , Alan Cox , IDE/ATA development list Hello, 11/14/2009 09:11 AM, Robert Hancock wrote: > Luke/Tejun, do you have some error output from those wodim or growisofs > errors? It would be useful to know what commands those were that failed > and whether they were also an unusual data size. I don't have anything. For some reason, ahci works fine on the setups here. :-( I'm waiting for Dan's further report. I still am not sure whether we're actually seeing a lot of ahci ATAPI failures or it's just that a lot of reports are on ahci because it's the most often used driver now. I don't think anything fundamental is broken. The reports are too infrequent for that to be true. It might have something to do with the buffer padding / draining we do or how the controller and driver react. Thanks. -- tejun