that sounds promising Michael. @Timo Sirainen <t...@iki.fi> any chance of a release with this included?
On Sun, Sep 1, 2024 at 9:32 AM Michael Grimm via dovecot < dovecot@dovecot.org> wrote: > Timo Sirainen via dovecot <dovecot@dovecot.org> wrote: > > > > On 30. Aug 2024, at 19.00, dco2024--- via dovecot <dovecot@dovecot.org> > wrote: > > >> This is not limited to FreeBSD. I'm seeing it on Gentoo Linux. Kernel > is 6.6.47-gentoo-x86_64, dovecot 2.3.21.1 (d492236fa0). The warning is > logged once every 12-15 hours. > >> > >> Syslog: > >> 2024-08-24 18:03:49 UTC myhost dovecot: master: Warning: Time moved > forwards by 0.100068 seconds - adjusting timeouts. > >> 2024-08-25 06:18:49 UTC myhost dovecot: master: Warning: Time moved > forwards by 0.100063 seconds - adjusting timeouts. > >> [snip] > >> Chrony ntp keeps the time in sync and the time has been in sync to > within 30us of UTC for many days. I noticed that it reports that the > unadjusted system clock is about 2.31 ppm fast of UTC. Doing the math for > dovecot's 12 hour warning interval: > >> 12 hours * 3600 secs/hour * 2.3/1000000 = 0.0998 seconds. > >> Could it be that dovecot is effectively measuring intervals of the > uncorrected system clock time instead of the longer term adjusted time, and > it complains when the accumulated NTP adjustments sum to 0.1 seconds. > > > > I don't see how that would be possible. The check is using only just > generated timestamps, not anything from a long time ago. > > > > I wonder if this kind of a simple patch would be good enough of a fix: > > > > [snip] > > I did apply your patch to dovecot-2.3.21.1 on 14.1-STABLE FreeBSD. > > Now, after 24 hours, dovecot doesn't complain about "Time moved forwards" > any longer. > > Before, I had had between 10 and 250 complaints every day. > > HTH and regards, > Michael > > > > _______________________________________________ > dovecot mailing list -- dovecot@dovecot.org > To unsubscribe send an email to dovecot-le...@dovecot.org > -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 (c) E-Mail: l...@lerctr.org US Mail: 13425 Ranch Road 620 N, Apt 718, Austin, TX 78717-1010 _______________________________________________ dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-le...@dovecot.org
