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    SubjectRe: [PATCH] VM fix for 2.4.0-test9 & OOM handler

    On Mon, 9 Oct 2000, Andrea Arcangeli wrote:

    > > No. It's only needed if your OOM algorithm is so crappy that
    > > it might end up killing init by mistake.
    > The algorithm you posted on the list in this thread will kill init if
    > on 4Mbyte machine without swap init is large 3 Mbytes and you execute
    > a task that grows over 1M.

    i think the OOM algorithm should not kill processes that have
    child-processes, it should first kill child-less 'leaves'. Killing a
    process that has child processes likely results in unexpected behavior of
    those child-processes. (and equals to effective killing of those
    child-processes as well.)

    But this mechanizm can be abused (a malicious memory hog can create a
    child-process just to avoid the OOM-killer) - but there are ways to avoid
    this, eg. to add all the 'MM badness' points to children? Ie. a child
    which has MM-abuser parent(s) will definitely be killed first.


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