Re: [bitfolk] Clock adjustment large on reboot

Hi Alastair, On Tue, Feb 16, 2010 at 08:16:36PM +0000, Alastair Sherringham wrote: I appreciate that time went backwards here which upsets dovecot, but.. You're now synced to an NTP server and have the correct time. Does it later lose sync? Is it possible that what you describe as an "OK" boot had independent_wallclock set to 0 so you were unable to set the time, it remained wrong, and dovecot did not complain? Personally I would rather have the right time and make dovecot start after ntpdate. Having it boot with the wrong time and then have ntpdate/ntp adjust it is the best I can offer I'm afraid, because that's the best I've been able to achieve. Just in case you might be thinking that the host you're on has the wrong time: kahlua$ date && ntpq -np Tue Feb 16 20:47:13 UTC 2010 remote refid st t when poll reach delay offset jitter ============================================================================== +209.237.247.192 212.13.195.4 4 u 770 1024 377 140.306 0.702 0.091 212.13.195.3 212.13.204.4 3 u 900 1024 377 0.280 2.328 0.271 212.13.195.4 212.13.204.4 3 u 910 1024 377 0.364 1.133 7.864 2001:ba8:1f1:f0 212.13.204.4 3 u 764 1024 377 4.560 0.207 1.500 2001:ba8:1f1:f0 212.13.204.4 3 u 767 1024 377 0.336 0.264 0.739 *212.13.204.4 195.66.241.10 2 u 29 1024 377 0.496 2.619 1.066 +212.13.204.5 195.66.241.2 2 u 989 1024 377 0.559 -0.330 0.066 So I don't know why it would be consistently around 35 minutes off. I do note that: kahlua$ date && hwclock --show && uptime Tue Feb 16 20:49:59 UTC 2010 Tue 16 Feb 2010 21:08:23 UTC -0.710159 seconds 20:50:00 up 349 days, 2:02, 5 users, load average: 0.52, 0.89, 1.23 which is obviously about 20 minutes off, but the hardware clock will get set from the system clock next time it's shut down, and I can't imagine why it would be used for anything. I'll sync it from the system clock now, though. kahlua$ sudo hwclock --systohc && date && hwclock --show Password: Tue Feb 16 20:51:53 UTC 2010 Tue 16 Feb 2010 20:51:54 UTC -0.472518 seconds Does that change things? Cheers, Andy -- http://bitfolk.com/ -- No-nonsense VPS hosting Of course not. Everyone knows you can't have your kayak and heat it. -- James Fidell