Messages in this thread | | | Date | Tue, 29 Sep 2015 15:13:50 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [RFC][PATCH 04/11] sched: Rework TASK_DEAD preemption exception |
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On Tue, 29 Sep 2015, Peter Zijlstra wrote:
> TASK_DEAD is special in that the final schedule call from do_exit() > must be done with preemption disabled. > > This leads to a violation of our new scheduling invariant which states > that the preempt count should be 2. Move the check for TASK_DEAD out > of the debug check and use it to decrement the preempt count (from 2 > to 1).
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
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