kernel-packages team mailing list archive

[Ben A <roothorick@xxxxxxxxx>]

That canned response doesn't apply, as the problem is not in the kernel
itself, but in the configuration Ubuntu is using to compile the kernel.

The fix is simple: in the kernel config, change

CONFIG_X86_POWERNOW_K8=y

and

CONFIG_X86_ACPI_CPUFREQ=y

to

CONFIG_X86_POWERNOW_K8=m

and

CONFIG_X86_ACPI_CPUFREQ=m

respectively.

Confirmed in Trusty Tahr. Boy this guy's been around.

** Changed in: linux (Ubuntu)
       Status: Incomplete => New

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https://bugs.launchpad.net/bugs/355232

Title:
  acpi-cpufreq/powernow-k8 should not be built-in into the kernel image

Status in “linux” package in Ubuntu:
  New
Status in “linux” source package in Lucid:
  In Progress

Bug description:
  Binary package hint: linux-image-generic

  acpi-cpufreq is not a module anymore and is directly included in the kernel.
  I think it is a bad decision because it is now very difficult to use phc to undervolt a processor : we need to compile the whole kernel with acpi-cpufreq as a module instead of just compile the module.
  http://www.linux-phc.org/index.php

  I am using ubuntu jaunty.

  Do you think we can have it back as a module for the final release ?

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