It's definitely related to cpufreqd. I switched to the ondemand cpufreq governor and haven't had any oopses for the past three days.
-- New kernels oops intermittently (cpufreqd-related?) https://launchpad.net/bugs/62104 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
