RE: [Xen-users] Upgrade from 2GB RAM to 4GB RAM

["Kevin van Kuik" <kkuik@xxxxxxxxxxxxxxxxxxxxxx>]

Hey,

I use the PEA version.

If you not have the PEA version you don't see more than 4GB and you
can't use more dan 4GB. I see more than 4GB but I can't start a domU
with 512MB.!

Regards Kevin

-----Original Message-----
From: Carsten Aulbert [mailto:carsten@xxxxxxxxxxxxxxxx] 
Sent: Wednesday, March 28, 2007 12:08 PM
To: Kevin van Kuik
Cc: Sergiu Strat; xen-users@xxxxxxxxxxxxxxxxxxx; Jerry Amundson
Subject: Re: [Xen-users] Upgrade from 2GB RAM to 4GB RAM


Hi there,

Kevin van Kuik wrote:
> I have the same problem! I have a HP DL360G5 with 3,5GB it's work 
> fine, but with 10GB memory I have the same error's. I have to a HP 
> DL380G5 with 16GB and the domU works fine..!

> So is there a solution yet?

I'm new to Xen and might be shooting in the wrong direction, but here on
Ubuntu, there are two different versions of the xen-hypervisor
available:

http://packages.ubuntu.com/feisty/misc/xen-hypervisor-3.0-i386-pae

Quote:
This version of the hypervisor is built with PAE enabled, in order to
support systems with more than 4GB of memory. If you have less than that
you should probably choose the non -pae version."

Usually, if something just works with up to 3.5 GByte of memory and not
beyond that usually implies you are running a 32bit system and there is
a "creash between the PCI address space mapped high into memory.
However, I don't know if that's the case here since the HP system
supports Xeon CPUs with EMT64 extension.

So my guess is, you are running a 32bit system and need to use a patched
hypervisor, but I might be wrong here.

HTH

Carsten



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