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    SubjectRe: [patch] x86, numa: Fix CONFIG_DEBUG_PER_CPU_MAPS without NUMA emulation
    On Thu, 30 Dec 2010, David Rientjes wrote:

    > "x86, numa: Fake node-to-cpumask for NUMA emulation" broke the build when
    > CONFIG_DEBUG_PER_CPU_MAPS is set and CONFIG_NUMA_EMU is not. This is
    > because it is possible to map a cpu to multiple nodes when NUMA emulation
    > is used; the patch required a physical node address table to find those
    > nodes that was only available when CONFIG_NUMA_EMU was enabled.
    >
    > This extracts the common debug functionality to its own function for
    > CONFIG_DEBUG_PER_CPU_MAPS and uses it regardless of whether
    > CONFIG_NUMA_EMU is set or not.
    >
    > NUMA emulation will now iterate over the set of possible nodes for each
    > cpu and call the new debug function whereas only the cpu's node will be
    > used without NUMA emulation enabled.
    >
    > Reported-by: Ingo Molnar <mingo@elte.hu>
    > Signed-off-by: David Rientjes <rientjes@google.com>

    Ingo, do you know what the status of this fix is? It's required for
    x86/numa to build and I'd hate to see all of this fixes miss .38 because
    of this failure.


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