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    SubjectRe: [PATCH 4/8] coredump_wait: don't call complete_vfork_done()
    On Fri, 2011-07-29 at 16:25 +0200, Oleg Nesterov wrote:
    > Please note that if ->vfork_done != NULL, then ->real_parent shares
    > ->mm with us, by definition of CLONE_VFORK.
    > In this case, with or without this patch, the parent was already
    > killed by zap_threads(). It can never do wait() or something else.
    > However. before 3/8, it was necessary to wakeup the TASK_UNINTERRUPTIBLE
    > parent, otherwise we deadlock. Once again, it can't do anything,
    > it will die immediately because of fatal_signal_pending().

    D'oh, yes. I see now, thanks!

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