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Hi, On Tue, Nov 14, 2006 at 09:58:29PM +0100, Mattia Dongili wrote: > > maybe this helps? mostly guessing here, but when cpufreq_userspace is > the default governor we may hit this path and leave policy->cur > unset. I doubt if that's causing the problem. My reasons are: - Reuben's config shows his system to be a x64_64. So if I am not mistaken, the correct file look for would be arch/ia64/kernel/cpufreq/acpi-cpufreq.c. - The fix provided by you deals with the state of a driver(hardware) specific variable data->cpu_feature while the governors like userspace/performance/powersave/ondemand are driver(hardware) independent. Nevertheless, it could be a valid fix for i386 acpi_cpufreq considering that policy->cur is not being initialized if data->cpu_feature == ACPI_ADR_SPACE_FIXED_HARDWARE. Please check with Dave Jones or Venkatesh Pallipadi. Thanks gautham. > > diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c > index 18f4715..94e6e86 100644 > --- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c > +++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c > @@ -706,7 +706,7 @@ static int acpi_cpufreq_cpu_init(struct > break; > case ACPI_ADR_SPACE_FIXED_HARDWARE: > acpi_cpufreq_driver.get = get_cur_freq_on_cpu; > - get_cur_freq_on_cpu(cpu); > + policy->cur = get_cur_freq_on_cpu(cpu); > break; > default: > break; > > -- > mattia > :wq! > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- Gautham R Shenoy Linux Technology Center IBM India. "Freedom comes with a price tag of responsibility, which is still a bargain, because Freedom is priceless!" - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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