From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752605AbdDDDpv (ORCPT ); Mon, 3 Apr 2017 23:45:51 -0400 Received: from smtp-out-so.shaw.ca ([64.59.136.139]:52171 "EHLO smtp-out-so.shaw.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751998AbdDDDpu (ORCPT ); Mon, 3 Apr 2017 23:45:50 -0400 X-Greylist: delayed 489 seconds by postgrey-1.27 at vger.kernel.org; Mon, 03 Apr 2017 23:45:50 EDT X-Authority-Analysis: v=2.2 cv=W+NIbVek c=1 sm=1 tr=0 a=JyAt4amVi6RK7kaaDbhaBA==:117 a=JyAt4amVi6RK7kaaDbhaBA==:17 a=IkcTkHD0fZMA:10 a=AzvcPWV-tVgA:10 a=2NgHpBtm49-fZpo-wFsA:9 a=QEXdDO2ut3YA:10 Subject: Re: AMD IOMMU causing filesystem corruption To: Joerg Roedel References: <5ea65f55-e5eb-11a5-14ab-e721d2f95ed6@sieb.net> <20170403213909.GR7266@8bytes.org> Cc: linux-kernel@vger.kernel.org From: Samuel Sieb Message-ID: <32afc9d1-a2db-f9dc-bbe0-d894967dc8ad@sieb.net> Date: Mon, 3 Apr 2017 20:37:36 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: <20170403213909.GR7266@8bytes.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CMAE-Envelope: MS4wfF0ytrdcw1hdutYF3NTAvf3Iocdxboah/D4zOe6XBK09GCGulrCwyE0HJ+dki/ZnurvM07/lttXcinkYukWyUTN/VBXWE6619UJFJgLLP4RM3ISMBF4e PPNkdISPoISU6EGTAuiXvFnpn83uSkPmgCEOBefIXAAcSFeQkDvnL2gLJ7SjME7P7+Z5dJwtxtkBoPSe24alnlG1sHtIcsD2O7A= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/03/2017 02:39 PM, Joerg Roedel wrote: > You have a system based on the AMD Stoney platform, on which the PCI-ATS > feature of the GPU is broken, as we recently found out. > > Can you please test whether the attached patch fixes the issue on your > machine? > Yes, that works, thank you! Now I'm curious what Windows does. Either they don't use that feature or they already knew to avoid it. In which case, why did AMD take so long to let the kernel developers know?