Re: lost cpufreq (Re: Linux v2.6.18-rc1)

Tomasz Torcz
2006-07-07T20:27:37Z

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On Fri, Jul 07, 2006 at 03:07:39PM -0400, Dave Jones wrote:
> On Fri, Jul 07, 2006 at 07:52:39PM +0200, Tomasz Torcz wrote:
> > On Wed, Jul 05, 2006 at 09:26:35PM -0700, Linus Torvalds wrote:
> > >
> > > Ok,
> > > the merge window for 2.6.18 is closed, and -rc1 is out there
> >
> > ... and cpufreq-nforce2.ko fails to work. Module can't be loaded:
> > FATAL: Error inserting cpufreq_nforce2
> > (/lib/modules/2.6.18-rc1/kernel/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.ko):
> > Device or resource busy
> >
> > Here's relevant difference between dmesg of 2.6.17 and 2.6.18-rc1:
> >
> > @@ -244,7 +240,6 @@
> > lp: driver loaded but no devices found
> > cpufreq: Detected nForce2 chipset revision C1
> > cpufreq: FSB changing is maybe unstable and can lead to crashes and data loss.
> > -cpufreq: FSB currently at 165 MHz, FID 10.5
> > usbcore: registered new driver usbfs
> > usbcore: registered new driver hub
>
> Does it work again if you apply this patch with -R ?

No.

>
>
> diff --git a/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c b/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
> index f275e0d..0d49d73 100644
> --- a/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
> +++ b/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
> @@ -90,7 +90,7 @@ static int nforce2_calc_pll(unsigned int
>
> /* Try to calculate multiplier and divider up to 4 times */
> while (((mul == 0) || (div == 0)) && (tried <= 3)) {
> - for (xdiv = 1; xdiv <= 0x80; xdiv++)
> + for (xdiv = 2; xdiv <= 0x80; xdiv++)
> for (xmul = 1; xmul <= 0xfe; xmul++)
> if (nforce2_calc_fsb(NFORCE2_PLL(xmul, xdiv)) ==
> fsb + tried) {
>
>
> --
> http://www.codemonkey.org.uk
> -
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--
Tomasz Torcz Morality must always be based on practicality.
zdzichu@irc.-nie.spam-.pl -- Baron Vladimir Harkonnen

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