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    SubjectRe: [BUG] TASK_DEAD task is able to be woken up in special condition
    On 01/06, Oleg Nesterov wrote:
    >
    > But this makes me worry. We are doing a lot of things after
    > exit_mm(). In particular we take tasklist_lock in exit_notify()
    > and then do_exit() takes task_lock(). But every unlock + lock
    > implies mb(). So how it was possible to hit this bug???

    Damn. please ignore me.

    Somehow I forgot that _there is no_ spin_unlock_wait() in the
    current code ;)

    Oleg.



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