From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932202AbVLLXVU (ORCPT ); Mon, 12 Dec 2005 18:21:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932224AbVLLXVU (ORCPT ); Mon, 12 Dec 2005 18:21:20 -0500 Received: from smtpq1.groni1.gr.home.nl ([213.51.130.200]:23206 "EHLO smtpq1.groni1.gr.home.nl") by vger.kernel.org with ESMTP id S932202AbVLLXVT (ORCPT ); Mon, 12 Dec 2005 18:21:19 -0500 Message-ID: <439E06C3.7000304@keyaccess.nl> Date: Tue, 13 Dec 2005 00:24:51 +0100 From: Rene Herman User-Agent: Mozilla Thunderbird 1.0.7 (X11/20050923) X-Accept-Language: en-us, en MIME-Version: 1.0 To: David Brownell CC: linux-kernel@vger.kernel.org Subject: Re: External USB2 HDD affects speed hda References: <429BA001.2030405@keyaccess.nl> <200506011643.42073.david-b@pacbell.net> <200506011917.14678.david-b@pacbell.net> <429F075F.7030804@keyaccess.nl> <42F3E95B.4050704@keyaccess.nl> <20050917023639.B49481FF9E@adsl-69-107-32-110.dsl.pltn13.pacbell.net> <432C2BF1.1040100@keyaccess.nl> In-Reply-To: <432C2BF1.1040100@keyaccess.nl> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-AtHome-MailScanner-Information: Neem contact op met support@home.nl voor meer informatie X-AtHome-MailScanner: Found to be clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Rene Herman wrote: (thread at http://marc.theaimsgroup.com/?t=111749614000002&r=1&w=2) > David Brownell wrote: >> - if (!head->qh_next.qh) { >> + if (!head->qh_next.qh && !ehci->reclaim) { > > > Thanks, but unfortunately no change. That is, still have that "Async" > status flag toggling on and off in /sys/class/usb_host/usb?/registers > (and the ~ 8MB/s drop in IDE throughput). Maybe useful informateion: no problems when the disk is accessed through uhci-hcd at the same port. Only using it through ehci-hcd triggers the problem ("async" status flag toggling on/off, drop in IDE throughput). Rene.