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xen-users
Re: [Xen-users] Xen 3.2.1-2 on Debian Lenny 2.6.26 2.6.26-24
Hi Maciej,
you have to reinstall dom0 when you would like to switch to amd64. You
can leave your domU's as they are or you can reinstall them too...as you
wish. It is up to you. 64bit dom0 can run 32bit domU without any issue.
Did you try to set DEBUG log-level - any errors in the log? Any error
message on dom0 or domU will help.
We were experiencing issue with older Debian's 2.6.26 xen kernel when
domU's were freezing from-time-to-time. Now we are running Debian's xen
kernel 2.6.18 in domU and this solved the issue with freezing domU's.
You can probably try this - install 2.6.18 on dom0 and/or domU.
In our case the domU's were freezing only when running with more than
one vcpu - you can probably try to configure domU's with only one vcpu.
For any other investigation/proposal are needed some error messages...
--
Peter
On 07/12/2010 03:17 PM, Maciej Liżewski wrote:
Hi,
Ok. I have no other solution. How to switch to 64bit kernel?
Assume I have configuration like descibed earlier. Do I have to reinstal
everything from scratch? Or just install 64bit packages? What packages? How
about domU's? do I have to reinstall something there also?
Does anyone have working configuration like this? 64bit dom0 and 32bit
domU's? is it stable witch Lenny packages?
We have other servers running Debian, so changing distro to CentOS is rather
last thing I would think of, but maybe this would be better solution than
messing with Lenny?
One thing I am afraid of with CentOS I will have problems with installing
required new versions of Apache, Mysql, php as fastcgi... as everything will
have to compile from sources.
Please help me with selecting proper solution. In fact - everything will be
better that current unstable system...
TIA
--
Maciej
-----Original Message-----
From: Matej Zary [mailto:matej.zary@xxxxxxxxx]
Sent: Friday, July 09, 2010 4:23 PM
To: Maciej Liżewski; xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] Xen 3.2.1-2 on Debian Lenny 2.6.26 2.6.26-24
Hello,
amd64 in Debian case means it's for 64bit x86 CPUs (x86-64) - either AMD or
Intel. :)
Regards
Matej
-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Maciej Liżewski
Sent: Friday, July 09, 2010 3:58 PM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] Xen 3.2.1-2 on Debian Lenny 2.6.26 2.6.26-24
Hi,
Thanks for answer. I'll try your suggestions about changes in configuration.
Don't know if amd64 kernel will run stable, as this is dual Intel Xeon
machine.
My configuration is very simple, example of one machine: dom0 is just Xen
host with network configured as custom script using two bridges (eth0,
eth1). Root partition has 10GB, rest is managed by LVM for DomU's. It has
~700MB ram. That's all, there are no other services on Dom0
DomU's are created to provide services:
DomU 1: MySQL 5.1 (from lenny-backports), ext3 (former I have tried XFS here
with same effect), 3GB ram
DomU 2: Web (Apache2, php5 as fastcgi, vsftpd, dkim-filter for emails sent
from scripts), XFS, 2GB ram
DomU 3: Reverse proxy (Nginx, ftp_proxy, awstats as fastcgi), XFS, 1.2GB ram
Every domain (dom0, domU's) have postfix as MTA
Everything installed via apt-get, no compilation, just default apt
repository + lenny-backports in some cases. 3rd DomU (reverse proxy) is most
stable. It haven't crash at all. Others crash at least one of them in week.
If you need any other information - just let me know.
--
Maciek
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