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SubjectRe: [RESEND PATCH] mm: clear N_HIGH_MEMORY map before se set it again -v2
On Thu, 4 Jun 2009, Yinghai Lu wrote:

> in case some system strange SRAT table. some kind of small range form some node
> or with mem= boot option etc. that node will not be onlined.
> In the early checking, the bit in node_states[N_HIGH_MEMORY] for the
> node is set even that node has less RAM like 1M.

Maybe we can replace that with:

SRAT tables may contains nodes of very small size. The arch code may
decide to not activate such a node. However, currently the early boot code
sets N_HIGH_MEMORY for such nodes. These nodes therefore seem to be active
although these nodes have no present pages.



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