I've switched to userspace governor+powernowd to "work around" the problem. Please let me know if more information is needed, I'll by happy to test other combinations and reproduce the error, etc.
-- Kernel panic when changing cpufreq governor https://launchpad.net/bugs/61449 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
