From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263808AbTJ1BjY (ORCPT ); Mon, 27 Oct 2003 20:39:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263809AbTJ1BjX (ORCPT ); Mon, 27 Oct 2003 20:39:23 -0500 Received: from mail.kroah.org ([65.200.24.183]:741 "EHLO perch.kroah.org") by vger.kernel.org with ESMTP id S263808AbTJ1BjF (ORCPT ); Mon, 27 Oct 2003 20:39:05 -0500 Date: Mon, 27 Oct 2003 17:30:13 -0800 From: Greg KH To: davidm@hpl.hp.com Cc: vojtech@suse.cz, linux-usb-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: Re: serious 2.6 bug in USB subsystem? Message-ID: <20031028013013.GA3991@kroah.com> References: <200310272235.h9RMZ9x1000602@napali.hpl.hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200310272235.h9RMZ9x1000602@napali.hpl.hp.com> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Oct 27, 2003 at 02:35:09PM -0800, David Mosberger wrote: > One-line summary: plug-in your USB keyboard, see your machine die. Any chance to know where the machine dies? Any oops you can help us out with? > So, I have this non-name USB keyboard (with built-in 2-port USB hub) > which reliably crashes 2.6.0-test{8,9} on both x86 and ia64. In > retrospect, it's clear to me that the same keyboard also occasionally > crashes 2.4 kernels, but there the problem appears more seldom. > Perhaps once in 10 reboots and once the machine is booted and the > keyboard is running, it keeps on working. The keyboard in question is > a BTC 5141H. If you do not load the HID driver, and disable automatic loading of the hid driver (echo '/sbin/true' > /proc/sys/kernel/hotplug) and plug in the device, does it still crash? If not, can you get us the output of /proc/bus/usb/devices and lsusb with the device plugged in? If not, does then loading the hid driver cause the problem? thanks, greg k-h