Re: ntpd flipping between PLL and FLL mode

2006-12-21 Thread Jeremy Chadwick
On Tue, Dec 19, 2006 at 12:51:43PM -0500, Michael Proto wrote: I made the change some time ago after combing newsgroups for this issue, so my memory is a little hazy, but I seem to remember something about the FLL/PLL switch being right at about 1024s. Check the Tuning section here:

Re: ntpd flipping between PLL and FLL mode

2006-12-20 Thread Roland Smith
On Tue, Dec 19, 2006 at 06:45:15PM -0500, David Magda wrote: This bug has been reported to the NTP maintainers: https://ntp.isc.org/bugs/show_bug.cgi?id=452 It's been assigned to Harlan Stenn (stennatntp.org). There have been no notes added to the bug report after the initial

ntpd flipping between PLL and FLL mode

2006-12-19 Thread Jeremy Chadwick
This issue has been discussed in the past, although no one really concluded what the cause was, or if there were implications from it: http://www.mail-archive.com/freebsd-stable@freebsd.org/msg67325.html http://lists.freebsd.org/pipermail/freebsd-questions/2004-September/059279.html There's

Re: ntpd flipping between PLL and FLL mode

2006-12-19 Thread Roland Smith
On Tue, Dec 19, 2006 at 04:41:51AM -0800, Jeremy Chadwick wrote: snip Dec 19 00:22:26 icarus ntpd[624]: kernel time sync enabled 2001 Dec 19 01:47:48 icarus ntpd[624]: kernel time sync enabled 6001 Dec 19 02:04:52 icarus ntpd[624]: kernel time sync enabled 2001 Looks very familiar,

Re: ntpd flipping between PLL and FLL mode

2006-12-19 Thread Oliver Fromme
Roland Smith wrote: Jeremy Chadwick wrote: snip Dec 19 00:22:26 icarus ntpd[624]: kernel time sync enabled 2001 Dec 19 01:47:48 icarus ntpd[624]: kernel time sync enabled 6001 Dec 19 02:04:52 icarus ntpd[624]: kernel time sync enabled 2001 Looks very familiar, unfortunately. I

Re: ntpd flipping between PLL and FLL mode

2006-12-19 Thread Michael Proto
Roland Smith wrote: On Tue, Dec 19, 2006 at 04:41:51AM -0800, Jeremy Chadwick wrote: snip Dec 19 00:22:26 icarus ntpd[624]: kernel time sync enabled 2001 Dec 19 01:47:48 icarus ntpd[624]: kernel time sync enabled 6001 Dec 19 02:04:52 icarus ntpd[624]: kernel time sync enabled 2001 Looks

Re: ntpd flipping between PLL and FLL mode

2006-12-19 Thread Jeremy Chadwick
On Tue, Dec 19, 2006 at 10:56:22AM -0500, Michael Proto wrote: An alternate workaround I've discovered is to use a maxpoll of 9 in /etc/ntp.conf: server rolex.peachnet.edu maxpoll 9 Since implementing this I haven't seen any of the FLL/PLL flips in my logs. How would decreasing the

Re: ntpd flipping between PLL and FLL mode

2006-12-19 Thread Michael Proto
Jeremy Chadwick wrote: On Tue, Dec 19, 2006 at 10:56:22AM -0500, Michael Proto wrote: An alternate workaround I've discovered is to use a maxpoll of 9 in /etc/ntp.conf: server rolex.peachnet.edu maxpoll 9 Since implementing this I haven't seen any of the FLL/PLL flips in my logs. How

Re: ntpd flipping between PLL and FLL mode

2006-12-19 Thread Matthew Dillon
:How would decreasing the polling time fix this? I do not understand :the semantics/behaviour of NTP very well. : :Taken from the manpage: : : maxpoll maxpoll : These options specify the minimum and maximum poll intervals for : NTP messages, in seconds to the power of two.

Re: ntpd flipping between PLL and FLL mode

2006-12-19 Thread David Magda
On Dec 19, 2006, at 09:07, Oliver Fromme wrote: Roland Smith wrote: [...] The following patch to ntp_loopfilter.c should quell the message: STFU patch --- ntp_loopfilter.c.orig Tue Dec 19 14:13:25 2006 +++ ntp_loopfilter.cTue Dec 19