linux-kernel - Re: Cpufreq not working in 2.6.18-rc6

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Date:	Sun, 10 Sep 2006 11:34:52 -0300
From:	"Thiago Galesi" <thiagogalesi@...il.com>
To:	"Dave Jones" <davej@...hat.com>,
	"Thiago Galesi" <thiagogalesi@...il.com>,
	"Linux Kernel" <linux-kernel@...r.kernel.org>
Subject: Re: Cpufreq not working in 2.6.18-rc6

Ok, apparently it is my fault...

I traced the failure to

if (cpufreq_driver) {
                spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
                return -EBUSY;
        }

(cpufreq_register_driver in drivers/cpufreq/cpufreq.c)

Turns out I was modprobing acpi-cpufreq before modprobing cpufreq-k7.
This worked in previous kernels and apparently, not in this one.

If I do not modprobe acpi-cpufreq, it works.

Thiago

On 9/9/06, Thiago Galesi <thiagogalesi@...il.com> wrote:
> >  >
> >  > CONFIG_X86_POWERNOW_K7_ACPI=y
> >  > ..
> >  > CONFIG_ACPI_PROCESSOR=m
> >
> > Does it start working again if you change ACPI_PROCESSOR=y ?
>
> No. nothing changes
>
> --
> -
> Thiago Galesi
>
-
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