linux-kernel - Re: Async suspend-resume patch w/ completions (was: Re: Async suspend-resume patch w/ rwsems)

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Message-ID: <20091220024503.GD4073@core.coreip.homeip.net>
Date:	Sat, 19 Dec 2009 18:45:04 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Zhang Rui <rui.zhang@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	pm list <linux-pm@...ts.linux-foundation.org>
Subject: Re: Async suspend-resume patch w/ completions (was: Re: Async
	suspend-resume patch w/ rwsems)

On Sun, Dec 20, 2009 at 12:53:45AM +0100, Rafael J. Wysocki wrote:
> On Sunday 20 December 2009, Linus Torvalds wrote:
> > 
> > If it isn't, don't do that then. But we actually have no real 
> > reason to believe that it would be problematic, at least on a PC where the 
> > actual logic is on the SB (presumably behind the LPC controller).
> > 
> > Why would it be?
> 
> The embedded controller may depend on it.
>

No, not really depend but rather wierd things may happen if you
accessing both. Witness regressions where touching embedded controller
makes us lose data from touchpad, I think you are CCed on that bug.

-- 
Dmitry
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