Re: Time jumping on both 4.x and 5.x ...
From: Kris Kennaway (kris_at_obsecurity.org)
Date: 11/29/03
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Date: Sat, 29 Nov 2003 00:19:06 -0800 To: Michael Nottebrock <michaelnottebrock@gmx.net>
On Sat, Nov 29, 2003 at 07:04:16AM +0100, Michael Nottebrock wrote:
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> On Saturday 29 November 2003 05:57, Dag-Erling Sm?rgrav wrote:
> > "Marc G. Fournier" <scrappy@hub.org> writes:
> > > as to ntpd/timed ... don't run either ... run ntpdate twice a day (11:59
> > > and 23:59)
> >
> > Don't Do That. It will lead to all kinds of trouble that will take
> > you ages to figure out. Really, ntpd is so ridiculously easy to set
> > up (especially if you already have ntpdate working) that there is no
> > reason not to use it.
>
> FWIW, it can reproduce this on two machines (one 4.9-RELEASE, one 5.1-RELEASE)
> which both run ntpd. Takes some 10 minutes on both before the first steps
> backwards turn up.
>
> Unfortunately, both machines aren't very good datapoints because both have
> pretty customized kernels and have -Os and -march optimized worlds/kernels...
>
> Both have kern.timecounter.hardware: ACPI-fast, too.
Are all affected machines multi-processor?
Kris
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