Red Hat Bugzilla – Bug 498406
[RHEL5.4]: Xen systems fail to start the cpuspeed service
Last modified: 2013-04-12 16:12:42 EDT
Description of problem:
I'm really sorry about this. The patch to solve bz 488924 has completely broken cpuspeed on Xen-enabled kernels. The problem is that cpuspeed starts *way* earlier in the boot process than xend does, and without xend, you can't actually run xm commands :(. So what happens is that at boot with a xen kernel, it says "CPU freq scaling disabled, unable to talk to xen hypervisor", and no frequency scaling is enabled.
At this point, this minor problem has caused more problems than it has fixed, so I would suggest backing it out and closing 488924 WONTFIX. Unless you have another bright idea of how to fix this.
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