New XO-1.5 10.2.0 build 112
Benjamin M. Schwartz
bmschwar at fas.harvard.edu
Sun Mar 14 22:00:50 EDT 2010
Paul Fox wrote:
> how exactly do we think this is supposed to work?
Not to repeat myself, but there is only one way to make the system
reliable, and that is to implement power saving via Cpuidle. Cpuidle is
integrated with the process scheduler and kernel timers, so cpu activities
(like responding to a ping) are never indefinitely delayed by sleep. I
cannot imagine any userspace solution that is not susceptible to race
conditions of the type you describe.
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