Re: [Xen-devel] dom0 boot failure with 256G

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 5/6/08 08:24, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> wrote:

>> 256GB is more than a 32b dom0 can handle. Presumably it works if you set
>> dom0_mem= to something smaller?
>> 
>> We should probably make the clipping of dom0 memory to something like
>> 64GB automatic.
> 
> Xen ought to have crashed during dom0 build in that case, being unable to
> allocate enough memory of the restricted address width supported by the 32b
> dom0 guest. I agree that dom0_mem should be automatically intelligently
> clamped. Currently nr_pages is clamped to UINT_MAX (!) for a 32b dom0, which
> is still rather a big number.

Actually compat guests are good for up to 128GB, so you should be fine with
no dom0_mem= parameter.

 -- Keir



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