[Bug 1686180] Re: CPU frequency is configured incorrectly

[Dougga]

** Also affects: kernel-package (Ubuntu)
   Importance: Undecided
       Status: New

** No longer affects: ubuntu-release-upgrader (Ubuntu)

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https://bugs.launchpad.net/bugs/1686180

Title:
  CPU frequency is configured incorrectly

Status in kernel-package package in Ubuntu:
  New

Bug description:
  The OS has misconfigured/identified the CPU so utilities for managing
  cpu scalling show inappropriate results.

  Currently my system is showing the CPU running at 57% of max speed or
  3.6 GHz despite the CPU being  a 3.1 GHz cpu.  I have the motherboard
  doing automated overclocking so this the observed speed is probably
  accurate.

  root at desk:/sys/devices/cpu# grep . /sys/devices/system/cpu/cpu0/cpufreq/*
  /sys/devices/system/cpu/cpu0/cpufreq/affected_cpus:0
  /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq:3279370
  /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq:6300000
  /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq:1600000
  /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_transition_latency:4294967295
  /sys/devices/system/cpu/cpu0/cpufreq/related_cpus:0
  /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors:performance powersave
  /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq:3433764
  /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver:intel_pstate
  /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:performance
  /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq:6300000
  /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq:1600000
  /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed:<unsupported>

  
  root at desk:/sys/devices/cpu# lscpu
  Architecture:          x86_64
  CPU op-mode(s):        32-bit, 64-bit
  Byte Order:            Little Endian
  CPU(s):                4
  On-line CPU(s) list:   0-3
  Thread(s) per core:    1
  Core(s) per socket:    4
  Socket(s):             1
  NUMA node(s):          1
  Vendor ID:             GenuineIntel
  CPU family:            6
  Model:                 42
  Model name:            Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz
  Stepping:              7
  CPU MHz:               3586.267
  CPU max MHz:           6300.0000
  CPU min MHz:           1600.0000
  BogoMIPS:              6387.46
  Virtualization:        VT-x
  L1d cache:             32K
  L1i cache:             32K
  L2 cache:              256K
  L3 cache:              6144K
  NUMA node0 CPU(s):     0-3
  Flags:                 fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm epb tpr_shadow vnmi flexpriority ept vpid xsaveopt dtherm ida arat pln pts

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: ubuntu-release-upgrader-core 1:16.10.10
  ProcVersionSignature: Ubuntu 4.8.0-49.52-generic 4.8.17
  Uname: Linux 4.8.0-49-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.3-0ubuntu8.2
  Architecture: amd64
  CrashDB: ubuntu
  Date: Tue Apr 25 12:26:11 2017
  InstallationDate: Installed on 2017-03-15 (41 days ago)
  InstallationMedia: Ubuntu-MATE 16.10 "Yakkety Yak" - Release amd64 (20161012.1)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: release-upgrade
  UpgradeStatus: No upgrade log present (probably fresh install)

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