Messages in this thread | | | Date | Thu, 22 Aug 2019 11:22:27 -0700 | From | Andi Kleen <> | Subject | Re: [PATCH V2] perf/x86: Consider pinned events for group validation |
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> + /* > + * Disable interrupts to prevent the events in this CPU's cpuc > + * going away and getting freed. > + */ > + local_irq_save(flags);
I believe it's also needed to disable preemption. Probably should add a comment, or better an explicit preempt_disable() too.
-Andi
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