From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753880Ab3GOCca (ORCPT ); Sun, 14 Jul 2013 22:32:30 -0400 Received: from g1t0028.austin.hp.com ([15.216.28.35]:37018 "EHLO g1t0028.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753819Ab3GOCc3 (ORCPT ); Sun, 14 Jul 2013 22:32:29 -0400 Message-ID: <51E35F31.1040709@hp.com> Date: Mon, 15 Jul 2013 10:32:17 +0800 From: "Li, Zhen-Hua" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0 MIME-Version: 1.0 To: Joerg Roedel CC: Ingo Molnar , Valdis Kletnieks , David Woodhouse , linux-kernel@vger.kernel.org Subject: Re: next-20130709 DMAR issues References: <29624.1373475702@turing-police.cc.vt.edu> <20130712121419.GA22945@gmail.com> <20130712143122.GF28811@8bytes.org> In-Reply-To: <20130712143122.GF28811@8bytes.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I have met a bug with the same error message, its cause was that the bios did not allocate RMRR/DRHD(can't remember which one) for the device. Thanks ZhenHua On 07/12/2013 10:31 PM, Joerg Roedel wrote: > Thanks for the heads-up, Ingo. > > On Fri, Jul 12, 2013 at 02:14:20PM +0200, Ingo Molnar wrote: >>> Jul 10 12:20:19 turing-police kernel: [ 0.021583] DMAR:[fault reason 06] PTE Read access is not set >>> >>> Now I have 3 extra messages talking about handling a fault status. lspci says 00:1f.2 is: >>> >>> 00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04) > This could be caused by some change in the SATA driver stack. Maybe a > DMA buffer is used after unmap or something. > > >>> If this doesn't ring any bells, I'l go do the bisect thing... > Yes, a bisection would help here, thanks for doing this. > > > Joerg > > > . >