Re: [Xen-users] RE: 32bit domU in 64 bit dom0

[Konstantin Skaburskas <konstantin.skaburskas@xxxxxxx>]

Hi Mats,

Petersson, Mats wrote:
> > Hi,
> >
> > We have dual CPU Quad-Core Xeons (64 bit HVM) machine. I am 
> > wondering if some one else have tried to deploy 32bit domU on 
> > 64 bit. I tried with Xen 3.0.3 but it didn't work. I remember 
> > some one mentioning on the mailing list that this 
> > functionality would be there in Xen 3.0.5. 
> 32-bit PAE Para-virtual domains will need 3.1.0 (the version formerly
> known as 3.0.5) to work correctly, yes. 
>
> HVM domains should work straight away in 3.0.3, but there may of course
> be OTHER things that make this not work, if that's what you've tried. 
>
> > I guess 3.0.5 would be out in few weeks, but it would be 
> > great if some one could point me to the code branch in Xen's 
> > source repository which have got this functionality implemented?
> There's rc10 at the moment in
> http://xenbits.xensource.com/xen-3.1-testing.hg
>
> I'm not sure how long before 3.1.0 comes out, but it should be fairly
> soon. If you want to use this feature, I would recommend that you get
> the latest version of 3.1-testing and check it out, just in case there's
> some minor bugs that can be fixed before the release!
I checked 3.1 out from the repo, compiled and can confirm that three 32 bit PV 
DomUs in 64 bit Dom0 survived overnight stress tests.
Hosts: Dell PowerEdge 2950 with dual CPU Dual-Core Xeons 5130. Next test will be 
with dual CPU Quad-Core Xeons E5320 (but I think there will be no problems).
Thanks for pointing this out and great job you are doing!

Regards,
Konstantin Skaburskas

---------------------------------------------------
CERN - European Organization for Nuclear Research
IT Department. CERN CH-1211, Genève 23, Switzerland

Phone:  +41 (0) 22 76 76002
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E-mail: Konstantin.Skaburskas@xxxxxxx
---------------------------------------------------
> --
> Mats
> > ----------------------------------------------------------   
> > CERN - European Organization for Nuclear
> > Research, IT Department,  CH-1211
> > Geneva 23, Switzerland
> >
> > Phone: +41 (0) 22 767 7996
> > Fax:     +41 (0) 22 766 8683
> > E-mail : Omer.Khalid@xxxxxxx
> > Homepage: http://cern.ch/Omer.Khalid 
>
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