Date: Thu, 24 Sep 2015 11:12:29 +0200 From: Erik Cederstrand <erik+lists@cederstrand.dk> To: dirkx@webweaving.org Cc: FreeBSD Hackers <hackers@freebsd.org> Subject: Re: What IS the right NTP behaviour ? Message-ID: <0CAEE340-B9DF-4772-8600-8A0904636452@cederstrand.dk> In-Reply-To: <D5902190-FC96-427B-A8DE-89E66500E145@webweaving.org> References: <39337.1442999127@critter.freebsd.dk> <F6AF299A-17B1-44DF-B025-B8FA0BC833D4@kientzle.com> <CAJm4238%2BJCfg7Xb2vMJ4--4uLPXrjn6EJzuc8xJdAeA-aXr7-A@mail.gmail.com> <20150923192729.GB78209@numachi.com> <D5902190-FC96-427B-A8DE-89E66500E145@webweaving.org>
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> Den 23/09/2015 kl. 22.33 skrev dirkx@webweaving.org: >=20 >=20 >> On 23 Sep 2015, at 21:27, Brian Reichert <reichert@numachi.com> = wrote: >>=20 >> On Wed, Sep 23, 2015 at 11:04:43AM -0700, Brandon Vincent wrote: >>> On Wed, Sep 23, 2015 at 10:35 AM, Tim Kientzle <tim@kientzle.com> = wrote: >>>> One concern I keep running into: Using NTP in VMs that are = frequently suspended/resumed. Though I suppose this may be covered by = your 'workstation' scenario (just step it after VM resume when you see = the large skew). >>>=20 >>> I would assume your hypervisor would sync the clock upon VM events. = Does it not? >>=20 >> In my VMs that run an NTP client, I keep the hypervisor out of the >> loop, and let the guest's NTP client to it's work. >=20 >> = ..http://kb.vmware.com/selfservice/microsites/search.do?language=3Den_US&c= md=3DdisplayKC&externalId=3D1006427 >=20 > Aye - but I=E2=80=99ve not found any clean way of doing that =E2=80=94 = now a small rc.d file does a stop of ntpd, an ntpdate (because the jumps = are bigger than what ntpd by default will accomodate) and a restart of = ntpd. Does "tinker panic 0" in /etc/ntp.conf not work for you? Erik
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