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    SubjectRe: [PATCH x86/mm UPDATED] x86-64, NUMA: Fix distance table handling
    On Wed, 2 Mar 2011, Yinghai Lu wrote:

    > BTW: this conf get broken several times, and get fixed several times.

    Yes, it has been. I think it's because there's an assumption that if the
    NUMA initialization fails that we automatically fake a single node 0
    covering all RAM. The pxm for node 0 doesn't actually need to have any
    memory bound to it in the SRAT, so it is trivial with a custom BIOS to
    avoid onlining the node. There doesn't appear to be any other problems
    related to this that we run into throughout the kernel, but it certainly
    needs to be fixed in this new emulation code even if those fake-to-phys
    mappings aren't currently used because it's a bad assumption.

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      Last update: 2011-03-03 21:07    [W:0.031 / U:11.212 seconds]
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