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Date: Wed, 22 Oct 2014 15:20:25 +0100 From: Mike Surcouf <mps.surcouf.lkml@...il.com> To: Thomas Shao <huishao@...rosoft.com> Cc: Thomas Gleixner <tglx@...utronix.de>, Richard Cochran <richardcochran@...il.com>, Jeff Epler <jepler@...ythonic.net>, "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>, LKML <linux-kernel@...r.kernel.org>, "devel@...uxdriverproject.org" <devel@...uxdriverproject.org>, "olaf@...fle.de" <olaf@...fle.de>, "apw@...onical.com" <apw@...onical.com>, "jasowang@...hat.com" <jasowang@...hat.com>, KY Srinivasan <kys@...rosoft.com>, John Stultz <john.stultz@...aro.org>, Richard Cochran <rcochran@...utronix.de> Subject: Re: [PATCH v2 1/2] timekeeping: add EXPORT_SYMBOL_GPL for do_adjtimex() > 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@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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