linux-kernel - Re: ACPI power off regression in 2.6.23-rc8 (NOT in rc7)

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Message-ID: <46F937E3.2090807@suse.de>
Date:	Tue, 25 Sep 2007 20:31:31 +0400
From:	Alexey Starikovskiy <astarikovskiy@...e.de>
To:	Torsten Kaiser <just.for.lkml@...glemail.com>
CC:	Alexey Starikovskiy <aystarik@...il.com>,
	Damien Wyart <damien.wyart@...e.fr>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Len Brown <len.brown@...el.com>, Frans Pop <elendil@...net.nl>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-acpi@...r.kernel.org
Subject: Re: ACPI power off regression in 2.6.23-rc8 (NOT in rc7)

Torsten Kaiser wrote:
> On 9/25/07, Alexey Starikovskiy <aystarik@...il.com> wrote:
>> Torsten Kaiser wrote:
>>> No, I do not have CONFIG_ACPI_SLEEP set,
>>> because I do not have CONFIG_PM_SLEEP set,
>>> because I do not want SUSPEND and/or HIBERNATION.
>> This is not the reason. SUSPEND is controlled with CONFIG_SUSPEND and
>> HIBERNATION is controlled with CONFIG_HIBERNATION.
>> But if you want S5 ACPI sleep state you might want to enable ACPI_SLEEP...
> 
> What I meant with SUSPEND and/or HIBERNATION was CONFIG_SUSPEND /
> CONFIG_HIBERNATION.
> 
> And the relations where from Kconfig:
> from drivers/acpi/Kconfig:
> config ACPI_SLEEP
>         bool
>         depends on PM_SLEEP
>         default y
> 
> -> no PM_SLEEP means no ACPI_SLEEP
> 
> from kernel/power/Kconfig:
> config PM_SLEEP
>         bool
>         depends on SUSPEND || HIBERNATION
>         default y
> 
> -> No SUSPEND and/or HIBERNATION means no PM_SLEEP
> 
> And if I select SUSPEND and/or HIBERNATION I will not only build this
> feature into the kernel, but also HOTPLUG_CPU and I want to avoid
> that.
> 
> It's exactly as Linus said in his mail: Not everybody wants SUSPEND...
> 
> I should have formulated that better in my mail, but that was what I
> wanted to say.
> 
> 
> Back to debugging this:
> http://marc.info/?l=linux-acpi&m=119052970904643&w=4
> fails to apply against 2.6.23-rc7-mm1, but moving that function by
> hand was not to difficult. ;)
> (With only the second patch I got a link error...)
> 
> http://marc.info/?l=linux-acpi&m=119073173625910&w=4
> applied, and a test showed that my system now powers off again.
> 
> Torsten
Understood, patches are available, please test.

Regards,
Alex.
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