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

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Date:	Fri, 28 May 2010 17:18:44 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Arve Hjønnevåg <arve@...roid.com>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Florian Mickler <florian@...kler.org>, felipe.balbi@...ia.com,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Linux PM <linux-pm@...ts.linux-foundation.org>
Subject: Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8)

On Fri, 2010-05-28 at 10:35 -0400, Alan Stern wrote:
>         The app is busy doing something else unimportant
>         We do into power save
>         Push a button, generate an IRQ
>         Come out of power save
>         No app to poke
>         * System goes back to sleep and eventually wakes up again
>         The app finishes what it was doing
>         The app sees there is a keystroke and marks itself important
>         ...
> 
> The * step is where trouble can occur. 

Only because you don't run runnable tasks. Please stop considering that
an option and these problems go away.
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