linux-kernel - Re: ARPM shutdown oops (Re: [stable] [patch 09/12] Fix SMP poweroff hangs)

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Message-ID: <20071011191917.GA11732@redhat.com>
Date:	Thu, 11 Oct 2007 15:19:17 -0400
From:	Dave Jones <davej@...hat.com>
To:	Jeff Garzik <jgarzik@...ox.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Kevin <spaceman__spiff@....net>, Greg KH <greg@...ah.com>,
	Olof Johansson <olof@...om.net>, Greg KH <gregkh@...e.de>,
	"Rafael J. Wysocki" <rjw@...k.pl>, "Theodore Ts'o" <tytso@....edu>,
	Zwane Mwaikambo <zwane@....linux.org.uk>,
	Justin Forbes <jmforbes@...uxtx.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Chris Wedgwood <reviews@...cw.f00f.org>,
	Domenico Andreoli <cavokz@...il.com>,
	Mark Lord <mlord@...ox.com>,
	Randy Dunlap <rdunlap@...otime.net>,
	Michael Krufky <mkrufky@...uxtv.org>,
	Chuck Ebbert <cebbert@...hat.com>, akpm@...ux-foundation.org,
	Chuck Wolber <chuckw@...ntumlinux.com>, stable@...nel.org,
	alan@...rguk.ukuu.org.uk, BDFL <volkerdi@...ckware.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: ARPM shutdown oops (Re: [stable] [patch 09/12] Fix SMP
	poweroff hangs)

On Thu, Oct 11, 2007 at 02:42:01PM -0400, Jeff Garzik wrote:
 > Linus Torvalds wrote:
 > > 
 > > And I think I see the problem: it's a config change. You don't have 
 > > PM_LEGACY enabled. Your config file diff shows:
 > > 
 > > 	-CONFIG_PM_LEGACY=y
 > > 	+# CONFIG_PM_LEGACY is not set
 > > 
 > > I suspect we should make CONFIG_APM either depend on, or select, 
 > > PM_LEGACY. But as far as I can see, nothing has actually changed in this 
 > > area in the kernel, and this bug has been there before - just your config 
 > > change made it appear. 
 > > 
 > > Rafael? Stephen? Opinions? I'd think that making APM depend on 
 > > CONFIG_PM_LEGACY is the right thing to do these days..
 > 
 > Speaking as the author of
 > 
 > 	[PATCH] move pm_register/etc. to CONFIG_PM_LEGACY, pm_legacy.h
 > 
 > I agree.  arch/i386/kernel/apm.c clearly requires 
 > include/linux/pm_legacy.h and the legacy PM API.
 > 
 > I would vote for a dependency rather than select, but don't have any 
 > strong feelings on the matter...

gti revert 987d4613e52e4f655278265aabbcc69237018b1d
should do the trick.

	Dave

-- 
http://www.codemonkey.org.uk
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