--- src/sys/emulation/svr4/Attic/svr4_misc.c	2004/09/28 00:25:34	1.23
+++ src/sys/emulation/svr4/Attic/svr4_misc.c	2004/09/30 18:59:43	1.24
@@ -610,7 +610,7 @@ svr4_sys_fchroot(struct svr4_sys_fchroot
 		return error;
 	vp = (struct vnode *) fp->f_data;
 	vn_lock(vp, NULL, LK_EXCLUSIVE | LK_RETRY, td);
-	if (vp->v_type != VDIR)
+	if (vp->v_type != VDIR || fp->f_ncp == NULL)
 		error = ENOTDIR;
 	else
 		error = VOP_ACCESS(vp, VEXEC, cred, td);
@@ -623,7 +623,7 @@ svr4_sys_fchroot(struct svr4_sys_fchroot
 		cache_drop(fdp->fd_nrdir);
 	}
 	fdp->fd_rdir = vp;
-	fdp->fd_nrdir = cache_vptoncp(vp);	/* stopgap */
+	fdp->fd_nrdir = cache_hold(fp->f_ncp);	/* stopgap */
 	return 0;
 }