[Bug 52941] New: CPU recognition bug for AMD

[Bug 52941] New: CPU recognition bug for AMD

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=52941

           Summary: CPU recognition bug for AMD
           Product: Power Management
           Version: 2.5
    Kernel Version: 3.7.4-1-ARCH
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: cpufreq
        AssignedTo: cpufreq@vger.kernel.org
        ReportedBy: sognametal@gmail.com
        Regression: No


Hi.

Since the 3.7.3 kernel, the cpu recognition bug [AMD Phenom II X4 965 Black
Edition @ 3.4 GHz].

-> /etc/conf.d/cpupower :
governor='ondemand'
min_freq="0.80GHz"
max_freq="3.39GHz"

-> cpupower frequency-info
analyse du CPU 0 :
  pas de pilotes cpufreq reconnu pour ce CPU
  boost state support:
    Supported: no
    Active: no

My cpu is no longer recognized and freq stay stuck at max.

But, after a few minutes (more than 20) or a few hours my cpu is again
recognized...
-> cpupower frequency-info
analyse du CPU 0 :
  pilote : acpi-cpufreq
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 4.0 us.
  limitation matérielle : 800 MHz - 3.40 GHz
  plage de fréquence : 3.40 GHz, 2.70 GHz, 2.20 GHz, 800 MHz
  régulateurs disponibles : ondemand, performance
  tactique actuelle : la fréquence doit être comprise entre 800 MHz et 3.40
GHz.
                  Le régulateur "ondemand" est libre de choisir la vitesse
                  dans cette plage de fréquences.
  la fréquence actuelle de ce CPU est 3.40 GHz.
  boost state support:
    Supported: no
    Active: no

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[Bug 52941] CPU recognition bug for AMD

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=52941


Sogn <sognametal@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |PATCH_ALREADY_AVAILABLE




--- Comment #1 from Sogn <sognametal@gmail.com>  2013-01-30 18:34:23 ---
Fixed with last kernel upgrade (3.7.5).

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[Bug 52941] CPU recognition bug for AMD

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=52941


Len Brown <lenb@kernel.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED
                 CC|                            |lenb@kernel.org




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