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=-13.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 5C9F0C433FE for ; Tue, 8 Dec 2020 23:12:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2A18123B16 for ; Tue, 8 Dec 2020 23:12:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731637AbgLHXMW (ORCPT ); Tue, 8 Dec 2020 18:12:22 -0500 Received: from relay1-d.mail.gandi.net ([217.70.183.193]:46291 "EHLO relay1-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725906AbgLHXMV (ORCPT ); Tue, 8 Dec 2020 18:12:21 -0500 X-Originating-IP: 62.210.143.248 Received: from weirdfishes.localdomain (62-210-143-248.rev.poneytelecom.eu [62.210.143.248]) (Authenticated sender: m@thi.eu.com) by relay1-d.mail.gandi.net (Postfix) with ESMTPSA id A3724240002; Tue, 8 Dec 2020 23:11:36 +0000 (UTC) Received: by weirdfishes.localdomain (Postfix, from userid 1000) id 206BD720488DE; Wed, 9 Dec 2020 00:11:36 +0100 (CET) Date: Wed, 9 Dec 2020 00:11:36 +0100 From: Mathieu Chouquet-Stringer To: Randy Dunlap Cc: Jonathan Corbet , Borislav Petkov , Stephen Kitt , Andrew Morton , Kees Cook , "Guilherme G. Piccoli" , Eric Biggers , Qais Yousef , Naoki Hayama , Yue Hu , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Update documentation to reflect what TAINT_CPU_OUT_OF_SPEC means nowadays Message-ID: <20201208231136.GA1455290@weirdfishes> Mail-Followup-To: Mathieu Chouquet-Stringer , Randy Dunlap , Jonathan Corbet , Borislav Petkov , Stephen Kitt , Andrew Morton , Kees Cook , "Guilherme G. Piccoli" , Eric Biggers , Qais Yousef , Naoki Hayama , Yue Hu , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org References: <20201202153244.709752-1-me@mathieu.digital> <20201208105439.23e2349b@lwn.net> <1254edd7-25ee-b73d-da2c-194d38ba7890@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1254edd7-25ee-b73d-da2c-194d38ba7890@infradead.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Tue, Dec 08, 2020 at 09:58:32AM -0800, Randy Dunlap wrote: > On 12/8/20 9:54 AM, Jonathan Corbet wrote: > > On Wed, 2 Dec 2020 16:32:43 +0100 > > Mathieu Chouquet-Stringer wrote: > >> Signed-off-by: Mathieu Chouquet-Stringer > > > > Hearing no objection, I've applied this. Thanks Jon. > Hm, I was glad to read this new info since my old testing laptop > now tells me that it needs a microcode update. :( In my case I first saw the error because tuned uses x86_energy_perf_policy which uses to poke at MSRs [1]. And that was tainting my kernel and I initially couldn't understand why. It's been fixed but will be released in an upcoming kernel version (it's in tip at the moment [2]). Thanks to Borislav for work and for helping me out! [1] https://lore.kernel.org/lkml/20201117210018.GA4247@weirdfishes/ [2] https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=fe0a5788624c8b8f113a35bbe4636e37f9321241 -- Mathieu Chouquet-Stringer me@mathieu.digital The sun itself sees not till heaven clears. -- William Shakespeare --