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

[Dave Jones]

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 ?

		Dave

 
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) {


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