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    Subject[oom]: [0/4] fix OOM deadlock running OAST
    Date
    While running OAST to test 2.6's maximum client capacity, the kernel
    deadlocked instead of properly OOM'ing. The obvious cause was the
    line if (nr_swap_pages > 0) in out_of_memory(), which fails to account
    for pinned allocations. This can't simply be removed. The following
    patches attempt to give the kernel the ability to discriminate between
    pinned and unpinned allocations in order to determine whether this
    check is appropriate. They furthermore also add reporting of wired
    memory on a global and per-zone basis.


    -- wli
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