From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932532Ab0JXLuE (ORCPT ); Sun, 24 Oct 2010 07:50:04 -0400 Received: from einhorn.in-berlin.de ([192.109.42.8]:54832 "EHLO einhorn.in-berlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932370Ab0JXLuB (ORCPT ); Sun, 24 Oct 2010 07:50:01 -0400 X-Envelope-From: stefanr@s5r6.in-berlin.de Message-ID: <4CC41D61.7020303@s5r6.in-berlin.de> Date: Sun, 24 Oct 2010 13:49:53 +0200 From: Stefan Richter User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.1.23) Gecko/20100627 SeaMonkey/1.1.18 MIME-Version: 1.0 To: Alan Stern CC: David Brownell , USB list , Kernel development list Subject: Re: 2.6.36-rc7: NULL pointer dereference in ehci_clear_tt_buffer_complete References: In-Reply-To: X-Enigmail-Version: 0.96.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Alan Stern wrote: > Okay, here's a patch which definitely causes the problem to surface. > It contains some extra debugging printouts but you can ignore them. Or > you can edit out the hunks that affect ehci-q.c. > > Ideally, you would test this while forcing the card reader to run at > full speed, by putting a USB-1.1 hub between the monitor and the card > reader. But if you don't have one available, don't worry -- the error > message should still appear even though it won't lead to an oops. > > And of course, when you run this along with the proposed fix, the error > message should go away. :-) Thanks, I will try it RSN, hopefully one of the next few days. -- Stefan Richter -=====-==-=- =-=- ==--- http://arcgraph.de/sr/