linux-kernel - Re: Linux 2.6.33.8

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Date:	Sun, 3 Apr 2011 00:23:01 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Carsten Emde <C.Emde@...dl.org>
cc:	Mike Galbraith <efault@....de>, Greg KH <gregkh@...e.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Len Brown <lenb@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Asit Mallick <asit.k.mallick@...el.com>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: Linux 2.6.33.8

On Sat, 2 Apr 2011, Carsten Emde wrote:
> This is the situation:
> 
> 1. Without commit ea53069231f9317062910d6e772cca4ce93de8c8:
> Everyting is fine. The system correctly powers off.
> 
> 2. With commit ea53069231f9317062910d6e772cca4ce93de8c8:
>    a) Frequency scaling never enabled (acpi_cpufreq not loaded,
>       cpufreq_ondemand not loaded):
>       Everything is fine. The system correctly powers off.
>    b) Frequency scaling enabled (acpi_cpufreq loaded, cpufreq_ondemand
>       loaded) or
>    c) Frequency scaling enabled and disabled (acpi_cpufreq still loaded
>       since it cannot be removed easily, cpufreq_ondemand no longer
>       loaded) or
>    d) Frequency scaling enabled and disabled (acpi_cpufreq unloaded
>       with force, cpufreq_ondemand no longer loaded):
>       Not powering off, message:
>       ACPI: Preparing to enter system sleep state S5
>       Disabling non-boot CPUs ...

Could any of the intel folks please add their input on that? I'm
running out of ideas.

Thanks,

	tglx

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