Re: NMI watchdog + NOHZ question

From: Andi Kleen
Date: Wed Jun 24 2009 - 03:03:36 EST


> I'm not exactly sure what to do about this.

Ack the timer interrupt earlier (and also give it a high priority?)

That could be still problematic if you have non nestabled irq stacks
(haven't checked if sparc has that or not),
potentially you might need to run the softirq on the process stack.

-Andi

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ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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