Re: [libvirt-users] Time syncing after VM suspend/resume

Jérôme
2015-09-23T15:44:15Z

Hi.

Thanks for answering.

Le 2015-09-23 17:34, Dominique Ramaekers a écrit :

> Linux has two methods to use ntp:
>
> ntpdate:
> It will run once at boot time to sync time. (This is probably
> installed on your system)
> It will not run after suspend and resume... => no correction

Nope. This is not installed on my system.

> ntpd:
> Continuously adjusts time. The deamon also calculates the drift to
> anticipate differences.
> I use this one and works perfectly.

This is installed (package ntp, Debian Jessie) and runs (I see
/usr/sbin/ntpd in `ps aux`). But after more than 24h, the 2'17 gap
between hwclock and date has not reduced a bit.

I guess this is not the place for me to debug my ntp issues, apart maybe
from what could be related to the virtualization itself.

I understood from my readings (can't remember where precisely) that the
fact that ntp wouldn't work was "normal", but if it is not, maybe
trying
to have it working is the way to go, rather than searching for a way to
automatize guest-set-time.

--
Jérôme