 - With a sleep time over 2097 seconds hzticks and slptime could end up    negative.  Use unsigned integers for sleep and run time so this doesn't    disturb sched_interact_score().  This should fix the invalid interactive    priority panics reported by several users.
 - With a sleep time over 2097 seconds hzticks and slptime could end up
   negative.  Use unsigned integers for sleep and run time so this doesn't
   disturb sched_interact_score().  This should fix the invalid interactive
   priority panics reported by several users.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase