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_PASS autolearn=ham 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 4E1C2ECE561 for ; Mon, 24 Sep 2018 06:23:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BCF292148C for ; Mon, 24 Sep 2018 06:23:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BCF292148C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727523AbeIXMYK (ORCPT ); Mon, 24 Sep 2018 08:24:10 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:43891 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727271AbeIXMYJ (ORCPT ); Mon, 24 Sep 2018 08:24:09 -0400 Received: from tmo-108-1.customers.d1-online.com ([80.187.108.1] helo=nanos) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1g4KHR-0007zB-3a; Mon, 24 Sep 2018 08:23:37 +0200 Date: Mon, 24 Sep 2018 08:23:36 +0200 (CEST) From: Thomas Gleixner To: Rob Prowel cc: linux-kernel@vger.kernel.org Subject: Re: AMD Athlon bogus performance value causing RCU stalls? In-Reply-To: Message-ID: References: <6243f7cc-1a80-db0b-4765-fa12bda9b06a@comcast.net> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII 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 On Sun, 23 Sep 2018, Rob Prowel wrote: > On 09/23/18 17:19, Thomas Gleixner wrote: > > It's in the 4.18.8 stable kernel, which should be available from your > > fedora repo anytime soon. > > > Will check with the newer kernel when it's available but please do double > check if this problem might exist on 64 bit architectures as well...and > of course I'm interested to know whether it is the likely cuprit of my > RCU problem. No that thing does not affect 64bit for sure. Can you please provide me a full dmesg from that machine? Thanks, tglx