Thus, {HEAD ~ the processor cache} may be available for {TAIL ~ general use}, except when physical memory is pinned 
available for
Thus , { HEAD ~ the processor cache } may be available for { TAIL ~ general use } , except when physical memory is pinned
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH