From mboxrd@z Thu Jan  1 00:00:00 1970
From: "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [RFC] sleepy linux
Date: Wed, 26 Dec 2007 10:56:59 -0800
Message-ID: <4772A3FB.8080108@zytor.com>
References: <20071225230731.GA29030@elf.ucw.cz>
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To: Pavel Machek <pavel@ucw.cz>
Cc: kernel list <linux-kernel@vger.kernel.org>, Linux-pm mailing list <linux-pm@lists.osdl.org>, "Rafael J. Wysocki" <rjw@sisk.pl>
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Pavel Machek wrote:
> This is RFC. It does not even work for me... it sleeps but it will not
> wake up, because SATA wakeup code is missing. Code attached for illustration.
> 
> I wonder if this is the right approach? What is right interface to the
> drivers?
> 
> 3) Network card that is either down
>    or can wake up system on any packet (and not loose too many packets)
> 

This is the big crux I see.  You're going to constantly wake up the 
machine due to broadcast packets, and spend a lot of power just going in 
and out of S3.

	-hpa