TASK_SIZE_MAX
#define TASK_SIZE_MAX (UL(1) << VA_BITS)
#define TASK_SIZE_MAX KSEG0
#define TASK_SIZE_MAX XKSSEG
#define TASK_SIZE_MAX DEFAULT_TASK_SIZE
#define TASK_SIZE_MAX TASK_SIZE_USER64
#define TASK_SIZE_MAX (-PAGE_SIZE)
#define TASK_SIZE_MAX TASK_SIZE
#define TASK_SIZE_MAX task_size_max()
#define TASK_SIZE_MAX TASK_SIZE
#define TASK_SIZE_MAX DEFAULT_MAP_WINDOW