Messages in this thread | | | Date | Thu, 4 Jun 2009 13:11:53 -0400 (EDT) | From | Christoph Lameter <> | Subject | Re: [RESEND PATCH] mm: clear N_HIGH_MEMORY map before se set it again -v2 |
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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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