FYI, we noticed the below changes on git://internal_merge_and_test_tree devel-catchup-201512182051 commit 87ab35c97aff307e45ebe603886a8436f22e59e0 ("acpi-cpufreq: Remove get_cur_freq_on_cpu()") We found the following new message in kernel log after your commit. [ 7.297919] cpufreq: cpufreq_online: Failed to initialize policy for cpu: 0 (-22) [ 7.298601] cpufreq: cpufreq_online: Failed to initialize policy for cpu: 1 (-22) [ 7.299322] cpufreq: cpufreq_online: Failed to initialize policy for cpu: 2 (-22) [ 7.299416] wmi: Mapper loaded [ 7.299440] cpufreq: cpufreq_online: Failed to initialize policy for cpu: 3 (-22) [ 7.299562] cpufreq: cpufreq_online: Failed to initialize policy for cpu: 4 (-22) [ 7.299684] cpufreq: cpufreq_online: Failed to initialize policy for cpu: 5 (-22) [ 7.299816] cpufreq: cpufreq_online: Failed to initialize policy for cpu: 6 (-22) [ 7.299904] cpufreq: cpufreq_online: Failed to initialize policy for cpu: 7 (-22) [ 7.299985] cpufreq: cpufreq_online: Failed to initialize policy for cpu: 8 (-22) [ 7.300065] cpufreq: cpufreq_online: Failed to initialize policy for cpu: 9 (-22) [ 7.300143] cpufreq: cpufreq_online: Failed to initialize policy for cpu: 10 (-22) [ 7.300221] cpufreq: cpufreq_online: Failed to initialize policy for cpu: 11 (-22) To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml Thanks, Ying Huang