nfs4_op_str
nfs4_op_str(re->re_uint), re_char1,
time, nfs4_op_str(rf->rf_op),
nfs4_op_str(rf->rf_op), nfs4_stat_str(rf->rf_stat4),
nfs4_op_str(ep->re_uint), char1p, ep->re_rp1, char2p,
mdb_printf("Op %s got error ", nfs4_op_str(fp->rf_op));
"%s (rnode_pt 0x%p).", nfs4_op_str(fp->rf_op),