linux-kernel - Re: [RFC][PATCH -mm 3/3] PM: Disable _request

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Message-ID: <20070528161242.GA1063@srcf.ucam.org>
Date:	Mon, 28 May 2007 17:12:42 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Nigel Cunningham <nigel@...el.suspend2.net>,
	Pavel Machek <pavel@....cz>, Oliver Neukum <oliver@...kum.org>
Subject: Re: [RFC][PATCH -mm 3/3] PM: Disable _request_firmware before hibernation/suspend

On Mon, May 28, 2007 at 12:09:30PM -0400, Alan Stern wrote:

> I can't speak for the second example, but there's a good reason the
> first example works this way.  It's not a matter of races; the problem
> is that the kernel thread's job is to selectively suspend and resume
> devices.  We don't want it doing this while a system sleep is in 
> progress; it would (and in fact has, before the thread was made 
> freezable) cause the sleep transition to abort.

How does this work on PPC or APM systems?
-- 
Matthew Garrett | mjg59@...f.ucam.org
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