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[Xen-devel] Re: [PATCH xen-unstable] Remove PSE flag from guest CR4



On 09/14/09 10:53, Dave McCracken wrote:
> Linux assumes it will just work.
>
> Since hugepages in Linux are an optional feature the kernel will boot even on 
> a machine that doesn't support PSE.  Applications that use hugepages will get 
> a nasty error.
>   

That sounds like a Linux bug; at the very least, it sounds very fragile
to rely on this behaviour.

    J

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