Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit

[Yinghai Lu]

On Wed, Jul 9, 2008 at 11:53 PM, Ingo Molnar <mingo@xxxxxxx> wrote:
>
> * Yinghai Lu <yhlu.kernel@xxxxxxxxx> wrote:
>
>> fix phys_pmd_init to make sure not to return big value than end.
>>
>> also print out range split:1G/2M/4K
>
> applied to tip/x86/core, thanks Yinghai. Lets hope it all goes well,
> this is a rather scary change - but it's also fairly clean.
>
> perhaps add a comment to the limit of 5 of mapping ranges - to point out
> that the number of mapping ranges depends on our programming, not on any
> external factor. I.e. if anyone adds a new mapping range to the kernel
> for any purpose, it must be extended - but otherwise it cannot run out
> due to new hardware.

4k, 2M, 1G, 2M, 4k

some day will get 512g page?

YH
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