./"flags"16t"hash"n2X
+/"freeback"16t"freefront"n2X
+/"frontvp"16t"backvp"16t"size"n2XD
+/"filegrp"16t"fileno"16t"invals"nX2D
+/"usage"nD
+$<<vnode
+$<<cachefsmeta
+/"error"16t"nio"16t"ioflags"n2DX40+
