vbox clocksource time synchro problem

http://www.vr.org/knowledgebase/161/My-server-clock-or-date-and-time-is-wrong-or-drifts.html

FOR FULLY VIRTUALIZED (HVM) INSTANCES
To resolve this issue, you can change the clocksource on your system. First determine the current clocksource:

To find your current clocksource

cat /sys//devices/system/clocksource/clocksource0/current_clocksource
cat /sys/devices/system/clocksource/clocksource0/available_clocksource

or

cat /sys/devices/system/clocksource/clocksource0/*

We can see that we have jiffies, pit, and tsc available as clocksources.
To change your clocksource, append clocksource=jiffies to your grub.conf kernel line. The sample grub entry would look like this:

title CentOS (2.6.18-194.3.1.el5xen)
        root (hd0,0)
        kernel /vmlinuz-2.6.18-194.3.1.el5xen ro root=LABEL=/ console=xvc console=tty clocksource=jiffies
        initrd /initrd-2.6.18-194.3.1.el5xen.img

Doku o synchronizacji czasu VM DOKU

Opis wielu problemów VBOX BUG tracker

Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License