CPU Deactivation Part 3

I’ve been relatively good about informing everyone who might read this blog of the efforts to resolve the problem of the second core of my processor not throttling after the suspend/resume cycle so necessary for Linux laptops!

A member of bugzilla team (at https://bugzilla.redhat.com/show_bug.cgi?id=415521) mentioned that I upgrade to a 2.6.29 kernel and see if this resolves the issue.

When I issued

sudo yum update kernel –enablerepo=rawhide

to see if there was a 2.6.29 kernel in there, I saw that there was such a kernel. I agreed to the updates and grabbed the firmware and sources associated with that kernel as well.

I rebooted and issued ‘uname -r’ to get

2.6.29-0.137.rc5.git4.fc11.x86_64

and then instantly suspended and resumed. Not only does my second core throttle, but it throttles independently of my first core. The 2.6.27 kernels didn’t allow this to happen.

My only concern is that the rawhide nature of the kernel may leave some other things unstable.

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