On Sat, 2016-11-05 at 15:04 +0100, Pavel Machek wrote: > On Sat 2016-11-05 14:53:13, Pavel Machek wrote: > > > > Hi! > > > > > > > > > > > > > Ok, can do, let me recompile and reboot. > > > > > > > > > > > > > > > > > > > When temperature limit is > > > > > reached acpi_processor_ppc_notifier() > > > > > should > > > > > be called. > > > > > > > > No, that's not correct for ACPI passive trip points, is it? If > > > > I > > > > recall correctly, those should be monitored even when > > > > temperature is > > > > below them so that it does not reach them...? > > > No if BIOS is sending PPC, it will be called. You can try first > > > in 4.8. > > > > > > Also try > > > > > > Don't run workload, just on an idle system. > > > > > > # echo 1 > /sys/class/thermal/cooling_device2/cur_state > > > monitor the scaling_max_freq, it should reduce > > > > > > # echo 2 > /sys/class/thermal/cooling_device2/cur_state > > > monitor the scaling_max_freq, it should reduce > > > > Yes, this seems to work. scaling_max goes to 1.5, then 1.1. Also > > under > > load, scaling_max_freq changes. But at that point, we are already > > around 98C... and bios_limit stays the same all the time in v4.9. > > ...while in v4.8-rc1, bios limit goes to 1.0 GHz at 90C, and > temperature just doesn't go above that. > > Does it make sense to try with v4.8-final? I sent some suggestion to try in previous email to add more prints and enable debug in acpi-cpufreq. Let's try that first. We need to fix anyway even if 4.8-final has this issue. Thanks, Srinivas > > Best regards, > Pavel ------------------------------------------------------------------------------ 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
