https://bugzilla.kernel.org/show_bug.cgi?id=12389


Thomas Renninger <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO
                 CC|                            |[email protected]
          Component|cpufreq                     |Config-Processors
         AssignedTo|[email protected]     |acpi_config-process...@kern
                   |                            |el-bugs.osdl.org
            Product|Power Management            |ACPI




--- Comment #3 from Thomas Renninger <[email protected]>  2010-11-06 20:04:54 ---
This should be an ACPI, not a cpufreq bug.
Some things you could check:
  - BIOS up-to-date?
  - Is the limitation done through _PPC:
cat /sys/devices/system/cpu/cpu0/cpufreq/bios_limit


The bios limit (_PPC) was not evaluated at (processor.ko) driver load time, but
only when CPU notification events where thrown. It sounds like you see this.
This got fixed by commit:
455c0d71d46e86b0b7ff2c9dcfc19bc162302ee9

Above patch could make trouble on other systems and you set "Fedora tree".
Can you double check that above commit is included in your tested kernel.

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