Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753330AbaJVOUb (ORCPT ); Wed, 22 Oct 2014 10:20:31 -0400 Received: from mail-ie0-f169.google.com ([209.85.223.169]:36748 "EHLO mail-ie0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751885AbaJVOU1 (ORCPT ); Wed, 22 Oct 2014 10:20:27 -0400 MIME-Version: 1.0 In-Reply-To: References: <1413362372-16236-1-git-send-email-huishao@microsoft.com> <20141021040212.GA6278@unpythonic.net> <20141021082058.GB6808@netboy> Date: Wed, 22 Oct 2014 15:20:25 +0100 Message-ID: Subject: Re: [PATCH v2 1/2] timekeeping: add EXPORT_SYMBOL_GPL for do_adjtimex() From: Mike Surcouf To: Thomas Shao Cc: Thomas Gleixner , Richard Cochran , Jeff Epler , "gregkh@linuxfoundation.org" , LKML , "devel@linuxdriverproject.org" , "olaf@aepfle.de" , "apw@canonical.com" , "jasowang@redhat.com" , KY Srinivasan , John Stultz , Richard Cochran Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Mike, can you share me your kernel version and which Linux distro do you use? 2.6.32-504.el6.x86_64 AKA RHEL 6.6 Happened on centos 7 and 6.5 too. #cat /var/lib/ntp/drift -248.869 About 20 secs a day (constant) Its not a new problem I had this in other distros and other kernels. I would say its environmental but not just my environment. Confirmed with Olaf on SUSEvariants back in 2012 but never came to anything see enc email --------------------------------------------- > > KY, can your team have a look at this? > > Vijay, have we done time stability test in the recent past. We should > look at replicating this issue on Distros of interest. Olaf, on sles11 > sp2, were you running NTP and how much was the drift. sles11sp2: uptime 23:45 hours, its 38 seconds ahead 12.2: uptime 1 day, 5:17 hours, its 47 seconds ahead ntpd is not running in both guests. > Also, what was the host in this test. The host is an uptodate w2k8 r2. Olaf ----------------------------------------------- Thanks Mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/