REAL_INITRD_SIZE  232 arch/alpha/boot/bootpz.c #define V_INTRD_END		(V_INITRD_START + REAL_INITRD_SIZE)
REAL_INITRD_SIZE  258 arch/alpha/boot/bootpz.c     (K_INITRD_START + REAL_INITRD_SIZE + MALLOC_AREA_SIZE)