KMALLOCS
# define KMALLOCS(a,b,c) (a) = (b)malloc(c)
# define KMALLOCS(a, b, c) (a) = (b)malloc((c), _M_IPF, M_NOWAIT)
# define KMALLOCS(a,b,c) (a) = (b)new_kmem_alloc((c), KMEM_NOSLEEP)