Date: Sat, 29 Nov 2003 00:19:06 -0800 From: Kris Kennaway <kris@obsecurity.org> To: Michael Nottebrock <michaelnottebrock@gmx.net> Cc: freebsd-current@freebsd.org Subject: Re: Time jumping on both 4.x and 5.x ... Message-ID: <20031129081906.GA96848@xor.obsecurity.org> In-Reply-To: <200311290704.19498.michaelnottebrock@gmx.net> References: <20031128212342.G99096@ganymede.hub.org> <20031129003221.F99096@ganymede.hub.org> <xzpvfp3wz3h.fsf@dwp.des.no> <200311290704.19498.michaelnottebrock@gmx.net>
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--tThc/1wpZn/ma/RB Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Nov 29, 2003 at 07:04:16AM +0100, Michael Nottebrock wrote: Content-Description: signed data > 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. >=20 > FWIW, it can reproduce this on two machines (one 4.9-RELEASE, one 5.1-REL= EASE)=20 > which both run ntpd. Takes some 10 minutes on both before the first steps= =20 > backwards turn up. >=20 > Unfortunately, both machines aren't very good datapoints because both hav= e=20 > pretty customized kernels and have -Os and -march optimized worlds/kernel= s... >=20 > Both have kern.timecounter.hardware: ACPI-fast, too. Are all affected machines multi-processor? Kris --tThc/1wpZn/ma/RB Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (FreeBSD) iD8DBQE/yFZ6Wry0BWjoQKURApKbAJ9cG5kj/3Gr9g8tUIMudnoHHmk6fgCggi/e daFM+Ctss9u/tjN43uo74lk= =4xFs -----END PGP SIGNATURE----- --tThc/1wpZn/ma/RB--
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