Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8)

From: Peter Zijlstra
Date: Thu May 27 2010 - 13:27:22 EST


On Thu, 2010-05-27 at 18:23 +0100, Matthew Garrett wrote:
> ACPI provides no guarantees about what level of hardware functionality
> remains during S3. You don't have any useful ability to determine which
> events will generate wakeups. And from a purely practical point of view,
> since the latency is in the range of seconds, you'll never have a low
> enough wakeup rate to hit it.

If all of userspace is blocked on devices, WTH is keeping us from
hitting it?
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