Red Hat Bugzilla – Bug 216487
Missing acpi-cpufreq.ko file in Xen kernels
Last modified: 2007-11-30 17:11:49 EST
Description of problem:
Standard Xen kernel in FC6 and new one - kernel-xen-2.6.18-1.2849.fc6.i686.rpm
don't have acpi-cpufreq.ko module (*file is not available*). This causes lack of
This module is available in PAE kernel.
Are there any techinal limitations related with Xen in that field?
This problem can be related to bug 156893 or bug 212802, but there is rather
info about erros returned by module (like "No such device") not lack of module
Version-Release number of selected component (if applicable):
- Standard Xen kernel in FC6
*** Bug 216486 has been marked as a duplicate of this bug. ***
Frequency scaling is not yet available under Xen. Even if the CPU drivers
worked, there is no infrastructure in the host kernel's CPU frequency management
to take account of activity in guest Xen domains.