| Subject | Re: [RFC PATCH 07/15] nohz_task: Restart tick when RCU forces nohz task cpu quiescent state | From | Peter Zijlstra <> | Date | Mon, 20 Dec 2010 17:02:09 +0100 |
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On Mon, 2010-12-20 at 16:24 +0100, Frederic Weisbecker wrote: > If a cpu is in nohz mode due to a nohz task running, then > it is not able to notify quiescent states requested by other > CPUs. > > Then restart the tick to remotely force the quiescent states on the > nohz task cpus.
-ENOPARSE.. if its in NOHZ state, it couldn't possibly need to participate in the quiescent state machine because the cpu is in a quiescent state and has 0 RCU activity.
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