Received: by 10.223.176.5 with SMTP id f5csp2026887wra; Sun, 28 Jan 2018 11:24:23 -0800 (PST) X-Google-Smtp-Source: AH8x2248v/MsEJV2abc5CNPvzuFqzE6u+M8Y8MOkzokc7Srk8Zjyj3TO3PezWatinBbYIeH5GlGT X-Received: by 2002:a17:902:6ac7:: with SMTP id i7-v6mr19226586plt.368.1517167463637; Sun, 28 Jan 2018 11:24:23 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1517167463; cv=none; d=google.com; s=arc-20160816; b=tUpq//Q2a4gJ7amDiTBG4DGIrZrau1V2Rm2PiR3lHHp/+b+6szi1yfnXapia5DZ+QQ J0WbW8AJ6nplH8HrE8ItJ+SLJObgIiwpcMfepepKFAzBPvOLeVivbV3shhxiVY2+aZkU QeNZDimSXusbvmLA61M4qsfO+iC+22oqbC72lJnCEnThqHoCCHnG6phqdt+1wSFkGtFY dQ4u7maEU+XHK/4jRSZqJBnduFlyjbCLGND5I/C/Uu/m8BCDCzhGQE5uB35qXxOEE/J0 /3Dy8Eb6Jdu07XZ83V6pG02/P4uSSUN9AV/3hkLYSxic9w+bqAiM9h2WoEjQ3tM/YLdx UeXQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:cc:to:subject:message-id:date:from :references:in-reply-to:mime-version:dmarc-filter :arc-authentication-results; bh=7S4Vx2JMS5uZ76Nmj8ww1N/YvZFl3BcIgig3oxO0wMA=; b=N9yPtWurxN3bRwM9n05YJJhZKoeew5dc2ezywOzo3BAWPAYl6mgu45yaE8S/ofiqVO +AnYMPbz/2tVQB9Xmy9uXv2FbafgNvnvS8/9XN9VbkWM3b/tPoKt95pm6fxFcyNQli8y Ap4yp+Kc1N2bcdY7Zz8XuN1wm1/PoVk0fdn5PbGmR9mqg6uUbSBApdwWFKrF/Won4EJv MjiMqvJLOP+Fa3kFSjJB+zSwMF+R81PWeYUjW+AlQ5nlXZUQAc+CwegE9mMmXbUUyMuS PTKVkfgLLbOTvczLwuW+5GjsRN1NvCmCi2tOxOGqi83C/eyAylr5heanli4nk8Hzw2B+ BX3Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id y17-v6si3315557plr.511.2018.01.28.11.24.07; Sun, 28 Jan 2018 11:24:23 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752501AbeA1TWN (ORCPT + 99 others); Sun, 28 Jan 2018 14:22:13 -0500 Received: from mail.kernel.org ([198.145.29.99]:47284 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752486AbeA1TWM (ORCPT ); Sun, 28 Jan 2018 14:22:12 -0500 Received: from mail-it0-f42.google.com (mail-it0-f42.google.com [209.85.214.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id EEBA7217AE for ; Sun, 28 Jan 2018 19:22:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EEBA7217AE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=luto@kernel.org Received: by mail-it0-f42.google.com with SMTP id n206so4499414itg.1 for ; Sun, 28 Jan 2018 11:22:11 -0800 (PST) X-Gm-Message-State: AKwxytc7zUGIUjigewbEvmFgHfvisSNPrjceo1fuO399+fRi17l5MOE0 wIV8wsrp7kLcNhO18ytiQGfClQBneisaxZ4jVXi6Ww== X-Received: by 10.36.74.200 with SMTP id k191mr25997065itb.69.1517167331390; Sun, 28 Jan 2018 11:22:11 -0800 (PST) MIME-Version: 1.0 Received: by 10.2.137.84 with HTTP; Sun, 28 Jan 2018 11:21:51 -0800 (PST) In-Reply-To: <20180126225611.2nebardhgblxhs5x@pd.tnic> References: <20180126153631.ha7yc33fj5uhitjo@xps> <20180126225611.2nebardhgblxhs5x@pd.tnic> From: Andy Lutomirski Date: Sun, 28 Jan 2018 11:21:51 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: selftests/x86/fsgsbase_64 test problem To: Borislav Petkov Cc: Andy Lutomirski , "H. Peter Anvin" , Dan Rue , Shuah Khan , Ingo Molnar , Dmitry Safonov , "open list:KERNEL SELFTEST FRAMEWORK" , LKML Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jan 26, 2018 at 2:56 PM, Borislav Petkov wrote: > On Fri, Jan 26, 2018 at 02:38:28PM -0800, Andy Lutomirski wrote: >> Borislav, any chance you could run the attached program on an AMD >> machine to see what it does? > > [boris@pd: /tmp> ./gs1 > PID = 3420 > ax = 0, cx = 0, dx = 0 > > This is on 4.15-rc7-ish + tip/master from 2 wks ago. Phooey :(