--- sys/fs/nfsclient/nfs_clrpcops.c.sav2	2021-02-27 07:21:04.017373000 -0800
+++ sys/fs/nfsclient/nfs_clrpcops.c	2021-02-27 07:23:21.213555000 -0800
@@ -3761,6 +3761,7 @@ nfsrpc_readdirplus(vnode_t vp, struct uio *uiop, nfsui
 				    ndp->ni_vp = newvp;
 				    NFSCNHASH(cnp, HASHINIT);
 				    if (cnp->cn_namelen <= NCHNAMLEN &&
+					ndp->ni_dvp != ndp->ni_vp &&
 					(newvp->v_type != VDIR ||
 					 dctime.tv_sec != 0)) {
 					cache_enter_time(ndp->ni_dvp,