Messages in this thread | | | Subject | Re: [PATCH 2/3] nohz: Move idle balancer registration to idle path | From | Rik van Riel <> | Date | Tue, 20 Jun 2017 13:39:08 -0400 |
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On Mon, 2017-06-19 at 04:12 +0200, Frederic Weisbecker wrote: > The idle load balancing registration path assumes that we only stop > the > tick when the CPU is idle, ignoring the nohz full case. As a result, > a > nohz full CPU that is running a task may be chosen to perform idle > load > balancing. > > Lets make sure that only CPUs in dynticks idle mode can be picked as > idle load balancers.
Woah. Dang.
> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> > Cc: Thomas Gleixner <tglx@linutronix.de> > Cc: Ingo Molnar <mingo@kernel.org> > Cc: Rik van Riel <riel@redhat.com> > Cc: Peter Zijlstra <peterz@infradead.org>
Acked-by: Rik van Riel <riel@redhat.com>
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