From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6D7F3C433E7 for ; Thu, 8 Oct 2020 08:22:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1A16B21531 for ; Thu, 8 Oct 2020 08:22:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728369AbgJHIW4 (ORCPT ); Thu, 8 Oct 2020 04:22:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56594 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725966AbgJHIW4 (ORCPT ); Thu, 8 Oct 2020 04:22:56 -0400 Received: from theia.8bytes.org (8bytes.org [IPv6:2a01:238:4383:600:38bc:a715:4b6d:a889]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E8931C061755; Thu, 8 Oct 2020 01:22:55 -0700 (PDT) Received: by theia.8bytes.org (Postfix, from userid 1000) id EBE192FB; Thu, 8 Oct 2020 10:22:51 +0200 (CEST) Date: Thu, 8 Oct 2020 10:22:49 +0200 From: Joerg Roedel To: Bjorn Helgaas Cc: linux-pci@vger.kernel.org, iommu@lists.linux-foundation.org, Todd Brandt , Len Brown , linux-kernel@vger.kernel.org Subject: Re: [Bug 209321] DMAR: [DMA Read] Request device [03:00.0] PASID ffffffff fault addr fffd3000 [fault reason 06] PTE Read access is not set Message-ID: <20201008082249.GA3107@8bytes.org> References: <20201007154314.GA3245607@bjorn-Precision-5520> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201007154314.GA3245607@bjorn-Precision-5520> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Hi Bjorn, On Wed, Oct 07, 2020 at 10:43:14AM -0500, Bjorn Helgaas wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=209321 > > Not much detail in the bugzilla yet, but apparently this started in > v5.8.0-rc1: > > DMAR: [DMA Read] Request device [03:00.0] PASID ffffffff fault addr fffd3000 [fault reason 06] PTE Read access is not set > > Currently assigned to Driver/PCI, but not clear to me yet whether PCI > is the culprit or the victim. Thanks for the heads-up, looks like Intel is already on it. Regards, Joerg