From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932244AbXGKSwV (ORCPT ); Wed, 11 Jul 2007 14:52:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1765868AbXGKSwA (ORCPT ); Wed, 11 Jul 2007 14:52:00 -0400 Received: from ik-out-1112.google.com ([66.249.90.177]:65227 "EHLO ik-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1765691AbXGKSv6 (ORCPT ); Wed, 11 Jul 2007 14:51:58 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=txKcodme0CalabhWvntaRndJMf1NESu8j1KnMkRgRUfm9GAuFceWA8fjfK/0hpgiFSkWxztorlrRADu3W8PZP7Te2L6F5Xzxe+Bhbo5c244AzJsmSJZ3ofRmtV7IrwXpybRvv+d2jHMh57TgW5XsHQc2fOf7NgnSK+sNai2pmwM= Message-ID: <6278d2220707111151o2b5f8b23ha14bf77be71b8b61@mail.gmail.com> Date: Wed, 11 Jul 2007 19:51:55 +0100 From: "Daniel J Blueman" To: "Chuck Ebbert" Subject: Re: [2.6.22-rc7] khubd NULL deref oops... Cc: "Linux Kernel" , "USB development list" In-Reply-To: <46950D94.7050909@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <6278d2220707081445s6c5029a6la5ae0fd019176f74@mail.gmail.com> <46950D94.7050909@redhat.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 11/07/07, Chuck Ebbert wrote: > On 07/08/2007 05:45 PM, Daniel J Blueman wrote: > > When plugging in a USB 2 mass-storage device which I've been seeing > > problems with, I caught a khubd oops [1]. Kernel is 2.6.22-rc7 on ia32 > > built with Ubuntu's 2.6.22 .config. > > > [ 4769.252000] sd 6:0:0:0: [sdb] Assuming drive cache: write through > > [ 4769.252000] sdb: sdb1 < sdb5 sdb6<6>usb 5-3: reset high speed USB > > device using ehci_hcd and address 8 > > So the device got reset right in the middle of scanning for partitions. > > > [ 4769.544000] usb 5-3: device descriptor read/64, error -71 > > [ 4769.760000] usb 5-3: device descriptor read/64, error -71 > > [ 4769.976000] usb 5-3: reset high speed USB device using ehci_hcd and > > address 8 > > [ 4770.088000] usb 5-3: device descriptor read/64, error -71 > > [ 4770.304000] usb 5-3: device descriptor read/64, error -71 > > [ 4770.520000] usb 5-3: reset high speed USB device using ehci_hcd and > > address 8 > > [ 4770.928000] usb 5-3: device not accepting address 8, error -71 > > [ 4771.040000] usb 5-3: reset high speed USB device using ehci_hcd and > > address 8 > > Then a whole slew of these by-now-familiar messages. > > Try disabling CONFIG_USB_SUSPEND. It makes lots of USB bugs go away I'll give it a shot. For the record, I wasn't trying to perform a suspend at this time (or since booting). Thanks for your help, Daniel -- Daniel J Blueman