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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 AC76EC3F68F for ; Fri, 24 Jan 2020 11:56:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 839B4206F0 for ; Fri, 24 Jan 2020 11:56:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387637AbgAXL4K (ORCPT ); Fri, 24 Jan 2020 06:56:10 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:42134 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729567AbgAXL4J (ORCPT ); Fri, 24 Jan 2020 06:56:09 -0500 Received: from [5.158.153.53] (helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1iuxZ5-0007IW-50; Fri, 24 Jan 2020 12:55:55 +0100 Received: by nanos.tec.linutronix.de (Postfix, from userid 1000) id C06C3103089; Fri, 24 Jan 2020 12:55:54 +0100 (CET) From: Thomas Gleixner To: Hans de Goede , Andy Shevchenko , vipul kumar Cc: Daniel Lezcano , linux-kernel@vger.kernel.org, Stable , Srikanth Krishnakar , Cedric Hombourger , x86@kernel.org, Len Brown , Vipul Kumar Subject: Re: [v3] x86/tsc: Unset TSC_KNOWN_FREQ and TSC_RELIABLE flags on Intel Bay Trail SoC In-Reply-To: References: <1579617717-4098-1-git-send-email-vipulk0511@gmail.com> <87eevs7lfd.fsf@nanos.tec.linutronix.de> <878slzeeim.fsf@nanos.tec.linutronix.de> <20200123144108.GU32742@smile.fi.intel.com> <87iml11ccf.fsf@nanos.tec.linutronix.de> Date: Fri, 24 Jan 2020 12:55:54 +0100 Message-ID: <87ftg5131x.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hans, Hans de Goede writes: > On 1/24/20 9:35 AM, Thomas Gleixner wrote: >> Where does that number come from? Just math? > > Yes just math, but perhaps the Intel folks can see if they can find some > datasheet to back this up ? Can you observe the issue on one of the machines in your zoo as well? Thanks, tglx