Comment 4 for bug 2041741

The step-wise governor certainly appears to have some issues. It would appear our version is reading trip_temp before it is ever initialized (https://git.launchpad.net/ubuntu/+source/linux-raspi/tree/drivers/thermal/gov_step_wise.c#n82). The patch linked from the forum post in the description corrects this; will build a test kernel to see if this fixes the issue.