From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 14 Jan 2003 02:03:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 14 Jan 2003 02:03:47 -0500 Received: from [195.141.26.14] ([195.141.26.14]:60429 "EHLO mars.planet.ch") by vger.kernel.org with ESMTP id ; Tue, 14 Jan 2003 02:03:46 -0500 Message-ID: <3E23B857.30209@pstaehli.ch> Date: Tue, 14 Jan 2003 08:12:23 +0100 From: Patrik Staehli MIME-Version: 1.0 To: Pete Zaitcev CC: linux-kernel@vger.kernel.org Subject: Re: usb-ohci mouse lockups on National Geode system References: <200301131911.h0DJBJV16371@devserv.devel.redhat.com> In-Reply-To: <200301131911.h0DJBJV16371@devserv.devel.redhat.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >>We are experiencing usb mouse freezing with different 2.4.x kernels >>(tested: 2.4.1, 2.4.17 and 2.4.20). In 2.4.20 it's actually much more >>frequent than in the older ones. >>The freezing lockups only happen when the ide disk is active and the >>mouse is being moved during that time. > > Sounds like a bug in ohci, but it may be hard to track down. > In the meantime, use "hdparm -u 1 /dev/hda" in your boot scripts > as a workaround. I tried it, but there are no noticeable improvements. This maybe indicates that it's a general interrupt timing problem with the ohci driver? /Patrik