From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261850AbTJ2VPz (ORCPT ); Wed, 29 Oct 2003 16:15:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261959AbTJ2VPz (ORCPT ); Wed, 29 Oct 2003 16:15:55 -0500 Received: from mail.kroah.org ([65.200.24.183]:3547 "EHLO perch.kroah.org") by vger.kernel.org with ESMTP id S261850AbTJ2VP1 (ORCPT ); Wed, 29 Oct 2003 16:15:27 -0500 Date: Wed, 29 Oct 2003 12:01:12 -0800 From: Greg KH To: Soeren Sonnenburg Cc: Linux Kernel Subject: Re: usb devices get redetected all the time in 2.6.0-test{7,9} Message-ID: <20031029200112.GB4434@kroah.com> References: <1067411725.1577.19.camel@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1067411725.1577.19.camel@localhost> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 29, 2003 at 08:15:26AM +0100, Soeren Sonnenburg wrote: > Hi. > > When I attach a camera to a 2.4. based machine hotplug starts up some > script to download images of that camera and fine thats it. > > In 2.6.0-testX I see kernel messages like: > > hub 2-0:1.0: new USB device on port 1, assigned address 2 > bus usb: add device 2-1 > bound device '2-1' to driver 'usb' > bus usb: add device 2-1:1.0 > bus usb: remove device 2-1:1.0 > bus usb: add device 2-1:1.0 > bus usb: remove device 2-1:1.0 > bus usb: add device 2-1:1.0 > bus usb: remove device 2-1:1.0 > bus usb: add device 2-1:1.0 > [...] > > and several of these hotplug scripts get started... Is this a wanted > behaviour and something has to be fixed in userspace or is it a kernel > bug ? Does this settle down after a bit, or does the add/remove stuff keep going on for a while? Can you enable CONFIG_USB_DEBUG and see if you get any more information in the kernel debug log as to why this is happening? thanks, greg k-h