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Re: [Pkg-xen-devel] Xen advice requested

Pasi Kärkkäinen schreef:
> On Tue, Jul 29, 2008 at 11:16:23AM +0200, Paul van der Vlis wrote:
>> Hello,
>> For a few months I build a new Xen server, both domU en dom0 are
>> 64-bits. I had some hardware problems, that's the reason the server is
>> not doing production-work now, but I would like to go in production real
>> soon.
>> My problem is that I made this server for a longer term. And I don't see
>> a 64-bit domU in the 2.6.25 kernel, only a 32-bit domU kernel with PAE
>> support.
> Linux 2.6.25 contains 32b xen domU support implemented on top of Linux pv_ops
> framework. 
> pv_ops xen domU support in 2.6.25 doesn't include 64 bit support.. it is
> queued for 2.6.27.
>> My processor supports hardware virtualisation and I would like to use 8
>> GB RAM total. No domU is using more then 2 GB RAM.
> So you need PAE or full 64b.
>> Do you think it is better to switch to a 32-bit domU?
>> And what to do with the dom0 then? There is no Debian-kernel with a
>> 32-bits PAE domU, so far I know. Not in Etch and not in Lenny.
>> Is KVM a better option for a dom0 maybe?
> All 32b xen kernels should be PAE now, because non-PAE xen kernels are not
> supported/developed anymore.
> Linux 2.6.26 pv_ops xen domU support is PAE-only.
> http://wiki.xensource.com/xenwiki/XenParavirtOps
>> I am running Etch now, I would like to run Lenny soon as possible, but
>> Etch is OK for the coming year if necessary. I don't like building my
>> own kernel or using software what's not in Debian.
> pv_ops Linux 2.6.2(5|6|7) doesn't contain xen dom0 support..
> So the best option is to run etch in dom0, and lenny in domU.

Do you advice using a 32-bit or a 64-bit Etch dom0?

Thanks for your advice!

With regards,
Paul van der Vlis.


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