From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030308AbXAKMlN (ORCPT ); Thu, 11 Jan 2007 07:41:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030310AbXAKMlM (ORCPT ); Thu, 11 Jan 2007 07:41:12 -0500 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:3434 "EHLO spitz.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1030308AbXAKMlM (ORCPT ); Thu, 11 Jan 2007 07:41:12 -0500 Date: Wed, 10 Jan 2007 20:38:09 +0000 From: Pavel Machek To: Oliver Neukum Cc: linux-usb-devel@lists.sourceforge.net, kernel list , Andrew Morton , Greg KH Subject: Re: 2.6.20-rc4: null pointer deref in khubd Message-ID: <20070110203809.GA6378@ucw.cz> References: <20070110104937.GA32112@elf.ucw.cz> <200701101653.57929.oneukum@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200701101653.57929.oneukum@suse.de> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > > usb 2-1: new full speed USB device using uhci_hcd and address 68 > > usb 2-1: USB disconnect, address 68 > > usb 2-1: unable to read config index 0 descriptor/start > > usb 2-1: chopping to 0 config(s) > > Does anybody know a legitimate reasons a device should have > 0 configurations? Independent of the reason of this bug, should we disallow > such devices and error out? It is not bad device, btw, but extremely flakey connector. Bug is random :-(, and machine is smp, so it might even be a race. Pavel -- Thanks for all the (sleeping) penguins.