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    SubjectRe: [GIT PULL rcu/next] rcu commits for 2.6.40

    * Ingo Molnar <mingo@elte.hu> wrote:

    > > very clearly indicate that this is an RCU regression.
    >
    > This might be the same one Yinghai found:
    >
    > e59fb3120bec: rcu: Decrease memory-barrier usage based on semi-formal proof
    >
    > So with the config i sent it's definitely reproducible.

    yes. And note that the system does not lock up, but boots up after a really
    long time - perhaps as a side-effect of very rare timer irqs driving forward
    the RCU state machine?

    Thanks,

    Ingo


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