[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-users] xen-3.2.0 problems with time (and space)


  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Massimo Mongardini <massimo.mongardini@xxxxxxxxx>
  • Date: Fri, 20 Jun 2008 13:36:36 +0100
  • Delivery-date: Fri, 20 Jun 2008 05:37:11 -0700
  • Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject :content-type:content-transfer-encoding; b=nsAm944t3/y29Za4Q0UzUEuHHhe2AYfiKx9RXdu9BtqZ927rX+qdFsLbEpTlJSpcj/ BgGkZfElGstOlMb+OZr4sEX4vg5bznpUieNi4O0eug+/tkuodIv0svRluuG1Cde8czKF 0dwtakBx9wkrKUOPRm8x6X7AcqS5/Z+gT7o3U=
  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Hi,
I am experiencing some issues keeping my clock in sync in a series of domU with xen-3.2.0.
every node is set to ntpd sync to a central server.
(server-0034 is a bare metal server and is in sync with the rest of the world, while 35-41 are rhel4 domUs)

--------- server-0034---------
Fri Jun 20 11:49:48 GMT 2008
--------- server-0035---------
Fri Jun 20 11:50:54 GMT 2008
--------- server-0036---------
Fri Jun 20 11:49:52 GMT 2008
--------- server-0037---------
Fri Jun 20 11:49:50 GMT 2008
--------- server-0038---------
Fri Jun 20 11:49:50 GMT 2008
--------- server-0039---------
Fri Jun 20 11:50:50 GMT 2008
--------- server-0040---------
Fri Jun 20 11:50:42 GMT 2008
--------- server-0041---------
Fri Jun 20 11:49:51 GMT 2008

on the logs I see many:
Jun 20 11:54:55 server-0041 ntpd[2573]: frequency error -512 PPM exceeds tolerance 500 PPM

Maybe as a side effect to this, the domUs timeout the connection to a nfs server from time to time

Jun 20 09:15:38 server-0036 kernel: nfs: server fs-cluster not responding, still trying
Jun 20 09:15:52 server-0036 kernel: nfs: server fs-cluster OK
Jun 20 09:16:35 server-0036 kernel: nfs: server fs-cluster not responding, still trying
Jun 20 09:16:35 server-0036 kernel: nfs: server fs-cluster OK

details:
dom0: rhel4
xen: 3.2.0 compiled sources
domU: rhel4

I also have another xen environment that I use for tests with xen 3.1 on a rhel4 dom0 and it doesn't seem to suffer for this issue:
--------- server-0002---------
Fri Jun 20 12:29:05 GMT 2008
--------- server-0012---------
Fri Jun 20 12:29:05 GMT 2008
--------- server-0040---------
Fri Jun 20 12:29:05 GMT 2008

any tip?

cheers,
Massimo

--
Massimo Mongardini
~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~
echo 
'Jg!J!hjwf!zpv!bo!bqqmf!boe!zpv!hjwf!nf!bo!bqqmf-!uifo!xf!xjmm!ibwf!bo!bqqmf!fbdi/!Cvu!jg!J!hjwf!zpv!bo!jefb!boe!zpv!hjwf!nf!bo!jefb-!xf!xjmm!ibwf!uxp!jefbt!fbdi!'
 | perl -pe 's/(.)/chr(ord($1)-1)/ge'
~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~
http://massimo.mongardini.it
http://www.getthefacts.it
http://www.mongardini.it/pizza-howto
~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~-.-~
Please avoid sending me Word or PowerPoint attachments.
See http://www.gnu.org/philosophy/no-word-attachments.html


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.