Created attachment 136513 [details]
We keep getting this messages on dmesg while running IGT:
[ 224.416285] Setting dangerous option reset - tainting kernel
[ 229.012298] intel_pstate: Turbo disabled by BIOS or unavailable on processor
CPU is Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz (family: 0x6, model: 0x2a, stepping: 0x7).
I already confirmed that the Turbo boost option is enable on BIOS, also enable CONFIG_INTEL_TURBO_MAX_3=y on kernel config, since I found this parameter on a CI config shared on other bug, and the warn keeps appearing.
SUCCESS tests with the warn from today's commit:
IGT-Version: 1.20-gd86d53b (x86_64) (Linux: 4.15.0-rc5-drm-tip-config-intel-turbo-ww1-commit-16432d3+ x86_64)
+ igt@gem_exec_flush@basic-wb-rw-default commit-cb4a985+
This is not a bug, drivers/cpufreq/intel_pstate.c is loudly reporting that it has no "turbo" (marginal overclock) frequencies. It is not even igt that is writing to /sys/devices/system/cpu/intel_pstate/no_turbo that triggers the warning. Look carefully at your own system; and file a bug against intel_pstate if you find the warning obnoxious, after all it is triggered by userspace and an error is reported already.
On it, thanks for the clarification.