Re: [Xen-users] Clock problems on Squeeze/Xen4 (clock jumps 50 minutes ahead)

[Aleix Dorca Josa <adorca@xxxxxx>]

Hi Stephan,

thanks for your suggestion but unfortunately what you propose only works in Xen 
3. I am using Xen 4.

cheers,

Aleix.

El 27/08/2012, a les 10:30, Stephan Seitz <s.seitz@xxxxxxxxxxx> va escriure:

> 
> 
> Am Montag, den 27.08.2012, 08:29 +0200 schrieb Aleix Dorca Josa:
> 
>> I see that the clocksource=pit on the grub command line does not seem to fix 
>> the problem. Any other hints? Change to Ubuntu server? Build my own xen 
>> binary? Use Debian's backports to change the kernel version?
>> 
>> This is kind of a big problem for me since the error kills ntpd on DomU's 
>> and then Dovecot's processes stop themselves when time is corrected. Scripts 
>> to workaround this are fine but I would rather much prefer for the clock not 
>> to jump ahead.
>> 
> 
> Hi,
> 
> as a quick fix, you could handle your domU's independent from xen:
> 
> echo "jiffies" > 
> /sys/devices/system/clocksource/clocksource0/current_clocksource
> echo "1" > /proc/sys/xen/independent_wallclock
> 
> take a look at 
> /sys/devices/system/clocksource/clocksource0/available_clocksource to see 
> which clock sources are possible.
> 
> cheers,
> 
> Stephan


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users