Since recent update (haven't tracked which one), powernowd fails to start with: ``` * Starting powernowd ... powernowd: PowerNow Daemon v1.00, (c) 2003-2008 John Clemens powernowd: Found 32 scalable units: -- 1 'CPU' per scalable unit powernowd: cpu0: 1550Mhz - 3200Mhz (3 steps) powernowd: cpu1: 1550Mhz - 3200Mhz (3 steps) powernowd: cpu2: 1550Mhz - 3200Mhz (3 steps) powernowd: cpu3: 1550Mhz - 3200Mhz (3 steps) powernowd: cpu4: 1550Mhz - 3200Mhz (3 steps) powernowd: cpu5: 1550Mhz - 3200Mhz (3 steps) powernowd: cpu6: 1550Mhz - 3200Mhz (3 steps) powernowd: cpu7: 1550Mhz - 3200Mhz (3 steps) powernowd: cpu8: 1550Mhz - 3200Mhz (3 steps) powernowd: cpu9: 1550Mhz - 3200Mhz (3 steps) powernowd: cpu10: 1550Mhz - 3200Mhz (3 steps) powernowd: cpu11: 1550Mhz - 3200Mhz (3 steps) /sys/devices/system/cpu/cpu12/cpufreq/cpuinfo_max_freq: No such file or directory PowerNowd encountered and error and could not start. Please make sure that: - You are running a v2.6.7 kernel or later - That you have sysfs mounted /sys - That you have the core cpufreq and cpufreq-userspace modules loaded into your kernel - That you have the cpufreq driver for your cpu loaded, (for example: powernow-k7), and that it works. Check 'dmesg' for errors. If all of the above are true, and you still have problems, please email the author: clemej@alum.rpi.edu * start-stop-daemon: failed to start `/usr/sbin/powernowd' [ !! ] * ERROR: powernowd failed to start ``` Reproducible: Always As far as I know, my CPU has 6 physical cores and 12 virtual cores, so powernowd should stop at cpu11. lscpu output: ``` Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 43 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 12 On-line CPU(s) list: 0-11 Vendor ID: AuthenticAMD BIOS Vendor ID: Advanced Micro Devices, Inc. Model name: AMD Ryzen 5 1600 Six-Core Processor BIOS Model name: AMD Ryzen 5 1600 Six-Core Processor Unknown CPU @ 3.2GHz BIOS CPU family: 107 CPU family: 23 Model: 8 Thread(s) per core: 2 Core(s) per socket: 6 Socket(s): 1 Stepping: 2 Frequency boost: enabled CPU(s) scaling MHz: 48% CPU max MHz: 3200,0000 CPU min MHz: 1550,0000 BogoMIPS: 6387,15 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb hw_pstate ssbd ibpb vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflu shopt sha_ni xsaveopt xsavec xgetbv1 clzero irperf xsaveerptr arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov succor smca sev sev_es Virtualization features: Virtualization: AMD-V Caches (sum of all): L1d: 192 KiB (6 instances) L1i: 384 KiB (6 instances) L2: 3 MiB (6 instances) L3: 16 MiB (2 instances) NUMA: NUMA node(s): 1 NUMA node0 CPU(s): 0-11 Vulnerabilities: Gather data sampling: Not affected Itlb multihit: Not affected L1tf: Not affected Mds: Not affected Meltdown: Not affected Mmio stale data: Not affected Retbleed: Mitigation; untrained return thunk; SMT vulnerable Spec rstack overflow: Mitigation; safe RET Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Spectre v2: Mitigation; Retpolines, IBPB conditional, STIBP disabled, RSB filling, PBRSB-eIBRS Not affected Srbds: Not affected Tsx async abort: Not affected ```
