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To: Tobias Ringstrom <tori@ringstrom.mine.nu>
Cc: Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: ACPI power off requires swsusp (was: Re: Power off a SMP Box) 
In-Reply-To: Your message of "Sat, 11 Jan 2003 13:10:47 +0100."
             <Pine.LNX.4.44.0301111301430.12267-100000@boris.prodako.se> 
From: Valdis.Kletnieks@vt.edu
References: <Pine.LNX.4.44.0301111301430.12267-100000@boris.prodako.se>
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On Sat, 11 Jan 2003 13:10:47 +0100, Tobias Ringstrom said:

> I just disovered that in 2.5.56 (at least), ACPI power-off needs
> CONFIG_ACPI_SLEEP which depends on CONFIG_SOFTWARE_SUSPEND.  This means
> that without selecting software suspend, your machine cannot power off
> using ACPI.  Why is it so?

Well.. I submitted  the Kconfig patch that makes it so.  However, I only did
that because there's code inside the ACPI_SLEEP that references a variable over
in SOFTWARE_SUSPEND.

A cleaner fix would probably be to move the variable someplace where it will
exist even when SOFTWARE_SUSPEND isn't defined.
-- 
				Valdis Kletnieks
				Computer Systems Senior Engineer
				Virginia Tech


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