From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932263AbWIRLRG (ORCPT ); Mon, 18 Sep 2006 07:17:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932251AbWIRLRG (ORCPT ); Mon, 18 Sep 2006 07:17:06 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:6536 "EHLO ogre.sisk.pl") by vger.kernel.org with ESMTP id S932265AbWIRLRD (ORCPT ); Mon, 18 Sep 2006 07:17:03 -0400 From: "Rafael J. Wysocki" To: Jan De Luyck Subject: Re: 2.6.18-rc6-mm2 (-mm1): ohci_hcd does not recognize new devices Date: Mon, 18 Sep 2006 13:20:31 +0200 User-Agent: KMail/1.9.1 Cc: linux-kernel@vger.kernel.org, Andrew Morton , David Brownell , USB development list , Greg KH , Alan Stern References: <200609160013.16014.rjw@sisk.pl> <200609180827.53626.rjw@sisk.pl> <200609180850.43815.ml_linuxkernel_20060528@kcore.org> In-Reply-To: <200609180850.43815.ml_linuxkernel_20060528@kcore.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200609181320.32049.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Monday, 18 September 2006 08:50, Jan De Luyck wrote: > On Monday 18 September 2006 08:27, Rafael J. Wysocki wrote: > > On Saturday, 16 September 2006 10:13, Rafael J. Wysocki wrote: > > > On Saturday, 16 September 2006 00:13, Rafael J. Wysocki wrote: > > > > It looks like the ohci_hcd driver sometimes has problems with the > > > > initialization (eg. USB mouse doesn't work after a fresh boot and > > > > reloading of the driver helps). > > > > > > > > I have observed this on two different x86_64 boxes (HPC 6325, Asus > > > > L5D), but it is not readily reproducible. Anyway I've got a dmesg > > > > output from a failing case which is attached. > > > > > > Actually, the problem is ohci_hcd doesn't seem to recognize devices > > > plugged into the USB ports. > > > > > > For example, if I unplug and replug a mouse (that worked before > > > unplugging), it doesn't work any more. I have to reload ohci_hcd to make > > > it work again. > > > > > > This is 100% reproducible and occurs on the two boxes above. > > I can confirm this behaviour. I've also seen that sometimes my USB > keyboard/mouse doesn't work after booting up. Reloading the module solves the > problem. > > This is on an amd64 box, ABIT kn9-sli, nForce 550. > > This is with 2.6.17.13. > > > I have carried out a binary search and found that the problem is caused by > > > > gregkh-usb-usbcore-remove-usb_suspend_root_hub.patch > > Will this work against 2.6.17.13 vanilla? No, this patch is not present in vanilla. Rafael -- You never change things by fighting the existing reality. R. Buckminster Fuller