From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964963AbWIRUr6 (ORCPT ); Mon, 18 Sep 2006 16:47:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964976AbWIRUr6 (ORCPT ); Mon, 18 Sep 2006 16:47:58 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:64140 "EHLO ogre.sisk.pl") by vger.kernel.org with ESMTP id S964963AbWIRUr5 (ORCPT ); Mon, 18 Sep 2006 16:47:57 -0400 From: "Rafael J. Wysocki" To: Alan Stern Subject: Re: 2.6.18-rc6-mm2 (-mm1): ohci_hcd does not recognize new devices Date: Mon, 18 Sep 2006 22:51:08 +0200 User-Agent: KMail/1.9.1 Cc: Andrew Morton , David Brownell , LKML , USB development list , Greg KH References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200609182251.09318.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Monday, 18 September 2006 17:07, Alan Stern wrote: > On Mon, 18 Sep 2006, Rafael J. Wysocki wrote: > > > > 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 have carried out a binary search and found that the problem is caused by > > > > gregkh-usb-usbcore-remove-usb_suspend_root_hub.patch > > Tell me, what happens if you leave that patch installed, and you use > the patch I sent last week (the one that removes a chunk of code from > ohci-hub.c), and you also set CONFIG_USB_SUSPEND? The problem continues to happen. Moreover, if I revert the above patch and apply the patch removing code from ohci-hub.c, the problem reappears. > I think the real underlying problem here is that David's implementation of > root-hub suspend in ohci-hcd is incompatible with the overall scheme I've > been working on. In the end I'll probably have to rewrite the ohci-hcd > code. Well, at this point I can only help you by testing some code. ;-) Seriously, if you have any new patches to test, please let me know. Greetings, Rafael -- You never change things by fighting the existing reality. R. Buckminster Fuller