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    SubjectRe: [PATCH 2/2] mm,migration: Avoid race between shift_arg_pages() and rmap_walk() during migration by not migrating temporary stacks
    On 04/30/2010 03:22 PM, Andrea Arcangeli wrote:
    > I'm building a mergeable THP+memory compaction tree ready for mainline
    > merging based on new anon-vma code, so I'm integrating your patch1 and
    > this below should be the port of my alternate fix to your patch2 to
    > fix the longstanding crash in migrate (not a bug in new anon-vma code
    > but longstanding). patch1 is instead about the bugs introduced by the
    > new anon-vma code that might crash migrate (even without memory
    > compaction and/or THP) the same way as the bug fixed by the below.
    >
    > ==
    > Subject: fix race between shift_arg_pages and rmap_walk
    >
    > From: Andrea Arcangeli<aarcange@redhat.com>

    Reviewed-by: Rik van Riel <riel@redhat.com>

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