acpicpu setperf failed to alter frequency

I just updated to a recent snapshot (dated 10/29) on my Dell Latitude C640 laptop and I'm getting the following message repeated over and over in my dmesg/console: CPU0:acpicpu setperf failed to alter frequency Things seem to be working fine but it appears the CPU is not getting bumped up

Re: acpicpu setperf failed to alter frequency

and I'm getting the following message repeated over and over in my dmesg/console: CPU0:acpicpu setperf failed to alter frequency Things seem to be working fine but it appears the CPU is not getting bumped up to it's top speed (I believe hw.cpuspeed should be 1600) while plugged in (all