On 2010-02-04, David Lord <[email protected]> wrote: > unruh wrote: >> On 2010-02-03, David Lord <[email protected]> wrote: >>> Hal Murray wrote: ... > >> Three possibilities. >> a) if you run linux/bsd, run chrony. It corrects for temp drifts much >> much faster. > > That's out at moment as chrony isn't sufficiently stable and > backwards compatible. From my tests, I'd say offsets are lower
Which version of chrony? It has received extensive alteration in the past few months, and chrony 1.24 is just coming out. > than ntpd by at least a factor of 3. Problem is monitoring > with chronyc requiring same version on remote as chronyd on Yes, because of all the changes the chronyc and chronyd must be the same version. > server. I've also had complete lockups when attempting to peer > chrony with ntpd. That is much more serious. Note that I have been running 10 chrony machines from one ntp server for the past 2 years and have never seen a lockup. Can you give more information, at least to [email protected] On older versions of chrony, there was a problem with the rtc. Linux has been changing its rtc code because of hpet, and the older chrony code interacts badly with the rtc. Originally, with the original rtc, chrony would turn on rtc interrupts. However, the rtc would return immediately with some sort of "stored up" interrupt. this would cause the time to be way out( the interrupt is supposed to occur on the boundary when the seconds marker in the rtc turned over). In trying to fix this, I would call it twice, but with the newer hpet that would freeze chrony waiting for the read. This code has now been changed, and the freezes have stopped. Note that the above had nothing to do with ntp as server. > > I've attempted to subscribe to mailing lists and had > confirmation but not seen anything from the list nor seen my > problem reports sent to the lists. Are you using the new location? chrony had to move its hosting services because the old host shut down as a host. (sunsite). It is now at chrony.tuxfamily.org There has been a large number of posts from chrony-dev in the past few months. For the mailing lists and instructions http://chrony.tuxfamily.org/lists.html _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
