[ntp:questions] PPS not working on newer kernel/distros

Brandon Applegate brandon at burn.net
Sun Oct 14 21:59:49 UTC 2018


> On Oct 14, 2018, at 4:22 PM, Brandon Applegate <brandon at burn.net> wrote:
> 
> What I’m experiencing is that it will run with flag3 set to 1 - but it never seems to ‘lock on’ to PPS.  I’m wondering / asking if this could be a kernel issue.  I know I’m not giving kernel versions etc. and I’m speaking in terms of linux distro version.  I suppose I could nail down versions and try to dig to see if there’s PPS changes that have been made (for the worse) over the years.  I was just hoping perhaps someone on this list would know offhand of a ’smoking gun’ WRT linux kernel version / changes that has (adversely) affected kernel PPS.

Well it might seem that I was a bit hasty - and didn’t give ntpd time enough to sync on PPS.  In the past this was a very rapid process.  Since I’ve reinstalled and rebuilt it certainly takes longer.  I’ve set flag 3 to 1 and it did sync on PPS (‘o’ in billboard).  It seems to be settling down now.

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