Messages in this thread | | | Date | Sun, 4 Sep 2011 12:37:03 -0700 | From | "Paul E. McKenney" <> | Subject | Re: [PATCH 05/32] nohz: Move rcu dynticks idle mode handling to idle enter/exit APIs |
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On Fri, Sep 02, 2011 at 10:24:31AM +0200, Peter Zijlstra wrote: > On Thu, 2011-09-01 at 18:41 -0700, Paul E. McKenney wrote: > > > Now we could possibly add magic to rcu_read_unlock_special() to restart > > > the tick in that case. > > > > Not from NMI handlers we can't. Unless I am really confused about the > > code that restarts the tick. Which is not impossible, but ... > > Uhm.. good point ;-) yes that will be somewhat detrimental to the > overall OS health if we attempt such a thing.
But if you don't mind, I would very much like to use your question as a Quick Quiz. It should be a good one. ;-)
Thanx, Paul
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