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SubjectRe: [PATCH] memory hotplug disable boot option
On 07/01/2010 08:23 AM, Dave Hansen wrote:
> I was thinking more along the lines of just taking adjacent sections and
> merging them. We'll need a new "end address" or size file. Maybe
> "end_phys_index" or something similar.
> Such a beast would not fix all of the pathological cases, like where
> only every other 16MB section is populated with RAM, but I don't think
> those are very common at all, especially in cases where there's a lot of
> RAM. But, it also has a chance of being relatively backward-compatible.
> In most cases, we may even be able to calculate a new phys_block_size
> where everything fits evenly and be fully backward-compatible with the
> old ABI.

Under this scenario were you thinking that all of the memory sections that
reside under this memory block would then be acted upon as a whole. For
example would we allow users to hotplug individual memory sections included
in th block, or would the memory block be acted upon as a whole?


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