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    SubjectRe: [PATCH v2] mm: allow deferred page init for vmemmap only
    On Tue 15-05-18 11:59:25, Pavel Tatashin wrote:
    > > This will always be a maze as the early boot tends to be. Sad but true.
    > > That is why I am not really convinced we should use a large hammer and
    > > disallow deferred page initialization just because UP implementation of
    > > pcp does something too early. We should instead rule that one odd case.
    > > Your patch simply doesn't rule a large class of potential issues. It
    > > just rules out a potentially useful feature for an odd case. See my
    > > point?
    >
    > Hi Michal,
    >
    > OK, I will send an updated patch with disabling deferred pages only whe
    > NEED_PER_CPU_KM. Hopefully, we won't see similar issues in other places.

    If we do we will probably need to think more about a more systematic
    solution.
    --
    Michal Hocko
    SUSE Labs

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