On Sat, 2016-11-05 at 14:37 +0100, Pavel Machek wrote: > Hi! > > > > > [...] > > > > > > > > So we seem to have thermal or ACPI regression in v4.9-rc3. > > > > > It is possible. Can you add either add printk > > in acpi_processor_ppc_has_changed() or use ftrace and see do you > > get to > > these functions > > > > acpi_processor_ppc_init() > > acpi_processor_ppc_has_changed() > > acpi_processor_ppc_notifier() > > > > ? > > Yes, these seem to be called. Here's the log: Try this 1. Either enable dyndebug or add #define DEBUG 1 at the top of acpi-cpufreq.c 2. diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index bb01dea..6074995 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -94,9 +94,14 @@ static int acpi_processor_ppc_notifier(struct notifier_block *nb, ppc = (unsigned int)pr->performance_platform_limit; + printk(KERN_ERR "ppc = %d\n", ppc); + if (ppc >= pr->performance->state_count) goto out; + printk(KERN_ERR "ppc = %d freq-limit %d\n", ppc, pr- >performance->states[ppc]. + core_frequency * 1000); + cpufreq_verify_within_limits(policy, 0, pr->performance->states[ppc]. core_frequency * 1000); Thanks, Srinivas ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today. http://sdm.link/xeonphi _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
