Re: ACPI: S4 disappeared [mmotm 2009-02-10-16-35]

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* Rafael J. Wysocki <rjw@xxxxxxx> wrote:

> On Wednesday 11 February 2009, Jiri Slaby wrote:
> > On 02/11/2009 09:51 AM, Jiri Slaby wrote:
> > > On 02/11/2009 01:36 AM, akpm@xxxxxxxxxxxxxxxxxxxx wrote:
> > >> The mm-of-the-moment snapshot 2009-02-10-16-35 has been uploaded
> > > 
> > > Hi,
> > > 
> > > I've found out, that S4 disappeared in this release, in comparison to mmotm
> > > based on 2.6.29-rc2:
> > > -ACPI: (supports S0 S1 S3 S4 S5)
> > > +ACPI: (supports S0 S1 S3 S5)
> > > 
> > > Any ideas what could have caused this?
> > 
> > I think this one
> > ARCH_HIBERNATION_POSSIBLE=n
> > because
> > SMP=y
> > since
> >  config ARCH_HIBERNATION_POSSIBLE
> >         def_bool y
> > -       depends on !SMP || !X86_VOYAGER
> > +       depends on !SMP
> > 
> > The condition was wrong, ok, anyway it worked. Would
> > depends on !SMP || EXPERIMENTAL
> > make sense? The smp is handled in disable_nonboot_cpus manner, right?
> 
> Ah, someone removed X86_VOYAGER and left this gem.  I guess that went in
> through -tip (Ingo CCed).
> 
> After removing X86_VOYAGER, ARCH_HIBERNATION_POSSIBLE should always be set
> on x86.  Just make it
> 
> config ARCH_HIBERNATION_POSSIBLE
>          def_bool y

heh, indeed :-) Fixed via the commit below.

Thanks,

	Ingo

---------------->
>From 17993b49b1f540aace8e9b4242530d0b3376eb2a Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@xxxxxxx>
Date: Wed, 11 Feb 2009 17:20:51 +0100
Subject: [PATCH] x86: make hibernation always-possible

This commit:

  aced3ce: x86/Voyager: remove HIBERNATION Kconfig quirk

Made hibernation only available on UP - instead of making it available
on all of x86. Fix it.

Reported-by: Jiri Slaby <jirislaby@xxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 arch/x86/Kconfig |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 4a27aa4..148c112 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -140,7 +140,6 @@ config HAVE_CPUMASK_OF_CPU_MAP
 
 config ARCH_HIBERNATION_POSSIBLE
 	def_bool y
-	depends on !SMP
 
 config ARCH_SUSPEND_POSSIBLE
 	def_bool y
--
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