From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752343AbZEYCmV (ORCPT ); Sun, 24 May 2009 22:42:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751691AbZEYCmJ (ORCPT ); Sun, 24 May 2009 22:42:09 -0400 Received: from mx2.redhat.com ([66.187.237.31]:49989 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750849AbZEYCmI (ORCPT ); Sun, 24 May 2009 22:42:08 -0400 Date: Sun, 24 May 2009 20:39:02 -0600 From: Pete Zaitcev To: Alan Stern Cc: USB list , David , Pekka Enberg , , Linux Kernel Mailing List , , , Greg KH , Andrew Morton , "Rafael J. Wysocki" Subject: Re: USB/DVB - Old Technotrend TT-connect S-2400 regression tracked down Message-Id: <20090524203902.594a0eec.zaitcev@redhat.com> In-Reply-To: References: <4A1967A2.4050906@unsolicited.net> Organization: Red Hat, Inc. Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 24 May 2009 22:10:50 -0400 (EDT), Alan Stern wrote: > Pete, you should look at this. It appears to be a problem with the DMA > mapping in usbmon. Probably the same sort of thing you were working on > about a week ago (trying to access device memory). Indeed it looks the same. Is this an AMD CPU? I wonder if CONFIG_HAVE_DMA_API_DEBUG does it (enabled with a select in arch/x86/Kconfig). Strange that it started happening now. -- Pete