[Xen-users] Ubuntu Jaunty (9.04) as DomU Clock Issue

["Alexandr R. Ogurtzoff" <iscander@xxxxxxxxx>]

Hi, there
I got another issue with Ubuntu's 9.04 Xen-able for DomU kernel:
I run it as virtual instance and see my  clocks are wrong, and I have
no way to tune clocks inside VM:
VM's config is:  /etc/xen/app.cluster.xen
# this is autogenerated by Ganeti, please do not edit
#
kernel = '/boot/vmlinuz-2.6-xenU'
ramdisk = '/boot/initrd-2.6-xenU'
memory = 256
vcpus = 1
name = 'app.cluster.xen'
vif = ['mac=aa:00:00:3e:98:e4, bridge=br0']
disk = ['phy:/var/run/ganeti/instance-disks/app.cluster.xen:0,sda,w']
root = '/dev/xvda1'
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'restart'
extra = 'clock=jiffies'
^^^^^^ I set it to jiffies after Debian's expirence.

/boot/initrd-2.6-xenU -> initrd.img-2.6.28-11-server
 /boot/vmlinuz-2.6-xenU -> vmlinuz-2.6.28-11-server

That's almost fine. I got ntp run on VM, but time is wrong and it
seems it is 5 times slowly.  But I found another surprise from
Ubuntu's kernel - there is no xen.independent_wallclock option for
this kernel!

The VM's kernel
uname -a
Linux app.cluster.xen 2.6.28-11-server #42-Ubuntu SMP Fri Apr 17
02:48:10 UTC 2009 i686 GNU/Linux

root@app:~# sysctl -w xen.independent_wallclock=1
error: "xen.independent_wallclock" is an unknown key
root@app:~# cat
/sys/devices/system/clocksource/clocksource0/current_clocksource
jiffies
root@app:~# cat
/sys/devices/system/clocksource/clocksource0/available_clocksource
xen tsc jiffies

Is any solution to run it with correct clocks?

For Dom0 I'm trying  Ubuntu's xen 3.3 with Debian's 2.6.26-2-xen-686 kernel.
It is PVM and I have not "vt" option for my CPU so HVM unavailable.

Thank you in advance for solution
-- 
My best wishes.
Alexandr Ogurtsov.

Linux is very friendly it is just picky who its friends are

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