From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754795Ab1JKNmc (ORCPT ); Tue, 11 Oct 2011 09:42:32 -0400 Received: from mail-qy0-f174.google.com ([209.85.216.174]:37914 "EHLO mail-qy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752266Ab1JKNma (ORCPT ); Tue, 11 Oct 2011 09:42:30 -0400 Message-ID: <4E9447C2.20707@garzik.org> Date: Tue, 11 Oct 2011 09:42:26 -0400 From: Jeff Garzik User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:6.0.2) Gecko/20110906 Thunderbird/6.0.2 MIME-Version: 1.0 To: Hannes Reinecke CC: Amit Sahrawat , James Bottomley , Alan Stern , Douglas Gilbert , linux-usb@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig , NamJae Jeon Subject: Re: [Patch] SCSI: Retrieve Cache Mode Using SG_ATA_16 if normal routine fails References: <4E941D5E.6060101@suse.de> In-Reply-To: <4E941D5E.6060101@suse.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/11/2011 06:41 AM, Hannes Reinecke wrote: > ATA_16 is a rather recent command, and most older drives simply can't > cope with this. Instead they just kick the error handler and go offline > eventually. I tend to agree... there are a great many USB drives out there, and this has not really been tested with a large test selection, has it? Jeff