From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 20 Jun 2002 13:05:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 20 Jun 2002 13:05:35 -0400 Received: from mta7.pltn13.pbi.net ([64.164.98.8]:40391 "EHLO mta7.pltn13.pbi.net") by vger.kernel.org with ESMTP id ; Thu, 20 Jun 2002 13:05:34 -0400 Date: Thu, 20 Jun 2002 10:07:23 -0700 From: David Brownell Subject: Re: [linux-usb-devel] [PATCHlet] 2.5.23 usb, ide To: Andries.Brouwer@cwi.nl Cc: linux-kernel@vger.kernel.org, linux-usb-devel@lists.sourceforge.net Message-id: <3D120BCB.8080701@pacbell.net> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii; format=flowed Content-transfer-encoding: 7BIT X-Accept-Language: en-us, en, fr User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9) Gecko/20020513 References: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > Earlier, I reported an oops at shutdown. I just looked at > what causes the oops and find that the call > hcd->driver->stop() > is executed while hcd->driver->stop is NULL. > > ... > USB people may worry whether hcd->driver->stop should > have been non-NULL. Not supposed to be possible. All those hc_driver structures are declared "static const", with non-null stop(). Looks like something was zeroing some driver's readonly data segment while it was still in use. (And who knows that else!) What driver was getting that treatment? - Dave