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    SubjectRe: 2.6.17-rc5-mm1
    Christoph Lameter wrote:
    > On Mon, 5 Jun 2006, Martin Bligh wrote:
    >
    >
    >>>How was the kernel compiled? It must have been running on a NUMA system for
    >>>page migration to be enabled. Otherwise the fallback definitions in
    >>>include/linux/swapops.h should remove all the swap migration entry handling.
    >>
    >>x86_64 NUMA. Config is here:
    >>http://ftp.kernel.org/pub/linux/kernel/people/mbligh/config/abat/amd64
    >>
    >>mtest01 was what killed it, IIRC.
    >
    >
    > CONFIG_MIGRATION is not set, no CONFIG_MIGRATION entry is in .config, so
    > page migration was not compiled in. You also forgot to do "make oldconfig"
    > when building the kernel. If you do a "make oldconfig" then your kernel
    > will be build with page migration support.

    No, that is the config it starts with, sorry ... that was misleading.
    It then does makeoldconfig from there:

    http://test.kernel.org/abat/34624/build/dotconfig

    is teh one one from the -mm3 build

    CONFIG_MIGRATION=y

    > Either what we see is due to code rearrangement or there is something wrong with
    > the fallback definitions in include/linux/swapops.h.
    >
    > The swapless-pm-add-r-w-migration-entries.patch also introduces Hugh's
    > reversal of the anon_vma list.

    OK, are those easily separable? Sounds like one good test would be to
    force CONFIG_MIGRATION to =n, right?

    M.
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