From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751728AbcF3H5c (ORCPT ); Thu, 30 Jun 2016 03:57:32 -0400 Received: from mail-wm0-f42.google.com ([74.125.82.42]:34917 "EHLO mail-wm0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750937AbcF3H5b (ORCPT ); Thu, 30 Jun 2016 03:57:31 -0400 Message-ID: <1467273448.9949.7.camel@gmail.com> Subject: Re: rc5+tip/master: Marking clocksource 'tsc' as unstable because the skew is too large: From: Mike Galbraith To: Borislav Petkov , Thomas Gleixner Cc: Peter Zijlstra , x86-ml , lkml Date: Thu, 30 Jun 2016 09:57:28 +0200 In-Reply-To: <20160629171619.GA3691@pd.tnic> References: <20160627200631.GA3678@pd.tnic> <20160629171619.GA3691@pd.tnic> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.16.5 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2016-06-29 at 19:16 +0200, Borislav Petkov wrote: > And here it is again: > > ... > [ 15.720833] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready > [ 32.883077] clocksource: timekeeping watchdog on CPU1: Marking clocksource 'tsc' as unstable because the skew is too large: > [ 32.896986] clocksource: 'acpi_pm' wd_now: 8e147 wd_last: 531b43 mask: ffffff > [ 32.908834] clocksource: 'tsc' cs_now: 385f4b6d1e cs_last: 354328bcea mask: ffffffffffffffff > [ 32.922293] clocksource: Switched to clocksource acpi_pm I met that too when testing, but only on my 8 socket box for whatever reason. Putting tip back on the box and poking a bit while I beat up rt kernels elsewhere, cs_nsec: 167001172874 wd_nsec: 0. (poke++) -Mike