heap_pages_lomem 1345 gc.c           	heap_pages_lomem = 0;
heap_pages_lomem 1533 gc.c               if (heap_pages_lomem == 0 || heap_pages_lomem > start) heap_pages_lomem = start;
heap_pages_lomem 2043 gc.c               if (p < heap_pages_lomem || p > heap_pages_himem) return FALSE;