diff --git a/sys/fs/fuse/fuse_ipc.h b/sys/fs/fuse/fuse_ipc.h
--- a/sys/fs/fuse/fuse_ipc.h
+++ b/sys/fs/fuse/fuse_ipc.h
@@ -238,6 +238,8 @@
 #define FSESS_WARN_WB_CACHE_INCOHERENT 0x400000	/* WB cache incoherent */
 #define	FSESS_WARN_ILLEGAL_INODE  0x800000 /* Illegal inode for new file */
 #define FSESS_WARN_READLINK_EMBEDDED_NUL 0x1000000 /* corrupt READLINK output */
+#define FSESS_WARN_DOT_LOOKUP	  0x2000000 /* Inconsistent . LOOKUP response */
+#define FSESS_WARN_INODE_MISMATCH 0x4000000 /* ino != nodeid */
 #define FSESS_MNTOPTS_MASK	( \
 	FSESS_DAEMON_CAN_SPY | FSESS_PUSH_SYMLINKS_IN | \
 	FSESS_DEFAULT_PERMISSIONS | FSESS_INTR)
diff --git a/sys/fs/fuse/fuse_node.c b/sys/fs/fuse/fuse_node.c
--- a/sys/fs/fuse/fuse_node.c
+++ b/sys/fs/fuse/fuse_node.c
@@ -297,6 +297,8 @@
     __enum_uint8(vtype) vtyp)
 {
 	struct thread *td = curthread;
+	bool exportable = fuse_get_mpdata(mp)->dataflags & FSESS_EXPORT_SUPPORT;
+
 	/* 
 	 * feo should only be NULL for the root directory, which (when libfuse
 	 * is used) always has generation 0
@@ -309,6 +311,23 @@
 			"Assigned same inode to both parent and child.");
 		return EIO;
 	}
+	if (feo && feo->nodeid != feo->attr.ino && exportable) {
+		/*
+		 * NFS servers (both kernelspace and userspace) rely on
+		 * VFS_VGET to lookup inodes.  But that's only possible if the
+		 * file's inode number matches its nodeid, which isn't
+		 * necessarily the case for FUSE.  If they don't match, then we
+		 * can complete the current operation, but future VFS_VGET
+		 * operations will almost certainly return spurious results.
+		 * Warn the operator.
+		 *
+		 * But only warn the operator if the file system reports
+		 * NFS-compatibility, because that's the only time that this
+		 * matters, and dumb fuse servers abound.
+		 */
+		fuse_warn(fuse_get_mpdata(mp), FSESS_WARN_INODE_MISMATCH,
+		    "file has different inode number and nodeid.");
+	}
 
 	err = fuse_vnode_alloc(mp, td, nodeid, vtyp, vpp);
 	if (err) {
diff --git a/sys/fs/fuse/fuse_vfsops.c b/sys/fs/fuse/fuse_vfsops.c
--- a/sys/fs/fuse/fuse_vfsops.c
+++ b/sys/fs/fuse/fuse_vfsops.c
@@ -568,12 +568,25 @@
 		goto out;
 
 	feo = (struct fuse_entry_out *)fdi.answ;
+
 	if (feo->nodeid == 0) {
 		/* zero nodeid means ENOENT and cache it */
 		error = ENOENT;
 		goto out;
 	}
 
+	if (feo->nodeid != nodeid) {
+		/*
+		 * Something is very wrong with the server if "foo/." has a
+		 * different inode number than "foo".
+		 */
+		fuse_warn(data, FSESS_WARN_DOT_LOOKUP,
+		    "Inconsistent LOOKUP response: \"FILE/.\" has a different "
+		    "inode number than \"FILE\".");
+		error = EIO;
+		goto out;
+	}
+
 	vtyp = IFTOVT(feo->attr.mode);
 	error = fuse_vnode_get(mp, feo, nodeid, NULL, vpp, NULL, vtyp);
 	if (error)
diff --git a/tests/sys/fs/fusefs/last_local_modify.cc b/tests/sys/fs/fusefs/last_local_modify.cc
--- a/tests/sys/fs/fusefs/last_local_modify.cc
+++ b/tests/sys/fs/fusefs/last_local_modify.cc
@@ -233,7 +233,6 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.nodeid = ino;
 		out.body.entry.attr.size = oldsize;
-		out.body.entry.nodeid = ino;
 		out.body.entry.attr_valid_nsec = NAP_NS / 2;
 		out.body.entry.attr.ino = ino;
 		out.body.entry.attr.mode = S_IFREG | 0644;
@@ -277,6 +276,7 @@
 		SET_OUT_HEADER_LEN(*out0, entry);
 		out0->body.entry.attr.mode = S_IFREG | 0644;
 		out0->body.entry.nodeid = ino;
+		out0->body.entry.attr.ino = ino;
 		out0->body.entry.entry_valid = UINT64_MAX;
 		out0->body.entry.attr_valid = UINT64_MAX;
 		out0->body.entry.attr.size = oldsize;
@@ -392,7 +392,6 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.nodeid = ino;
 		out.body.entry.attr.size = oldsize;
-		out.body.entry.nodeid = ino;
 		out.body.entry.attr_valid_nsec = NAP_NS / 2;
 		out.body.entry.attr.ino = ino;
 		out.body.entry.attr.mode = S_IFREG | 0644;
@@ -414,7 +413,6 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.nodeid = ino;
 		out.body.entry.attr.size = oldsize;
-		out.body.entry.nodeid = ino;
 		out.body.entry.attr_valid_nsec = NAP_NS / 2;
 		out.body.entry.attr.ino = ino;
 		out.body.entry.attr.mode = S_IFREG | 0644;
@@ -439,6 +437,7 @@
 		SET_OUT_HEADER_LEN(*out0, entry);
 		out0->body.entry.attr.mode = S_IFREG | 0644;
 		out0->body.entry.nodeid = ino;
+		out0->body.entry.attr.ino = ino;
 		out0->body.entry.entry_valid = UINT64_MAX;
 		out0->body.entry.attr_valid = UINT64_MAX;
 		out0->body.entry.attr.size = oldsize;
diff --git a/tests/sys/fs/fusefs/lookup.cc b/tests/sys/fs/fusefs/lookup.cc
--- a/tests/sys/fs/fusefs/lookup.cc
+++ b/tests/sys/fs/fusefs/lookup.cc
@@ -560,6 +560,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = S_IFDIR | 0755;
 		out.body.entry.nodeid = foo_ino;
+		out.body.entry.attr.ino = foo_ino;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = 0;	// immediate timeout
 	})));
@@ -568,6 +569,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = S_IFDIR | 0755;
 		out.body.entry.nodeid = bar_ino;
+		out.body.entry.attr.ino = bar_ino;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = UINT64_MAX;
 	})));
@@ -577,6 +579,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = S_IFDIR | 0755;
 		out.body.entry.nodeid = FUSE_ROOT_ID;
+		out.body.entry.attr.ino = FUSE_ROOT_ID;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = UINT64_MAX;
 	})));
@@ -607,6 +610,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = S_IFDIR | 0755;
 		out.body.entry.nodeid = foo_ino;
+		out.body.entry.attr.ino = foo_ino;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = UINT64_MAX;
 	})));
@@ -615,6 +619,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = S_IFDIR | 0755;
 		out.body.entry.nodeid = bar_ino;
+		out.body.entry.attr.ino = bar_ino;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = UINT64_MAX;
 	})));
@@ -632,6 +637,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = S_IFDIR | 0755;
 		out.body.entry.nodeid = foo_ino;
+		out.body.entry.attr.ino = foo_ino;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = UINT64_MAX;
 	})));
@@ -640,6 +646,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = S_IFDIR | 0755;
 		out.body.entry.nodeid = FUSE_ROOT_ID;
+		out.body.entry.attr.ino = FUSE_ROOT_ID;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = UINT64_MAX;
 	})));
diff --git a/tests/sys/fs/fusefs/nfs.cc b/tests/sys/fs/fusefs/nfs.cc
--- a/tests/sys/fs/fusefs/nfs.cc
+++ b/tests/sys/fs/fusefs/nfs.cc
@@ -84,6 +84,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = mode;
 		out.body.entry.nodeid = ino;
+		out.body.entry.attr.ino = ino;
 		out.body.entry.generation = 1;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = 0;
@@ -95,6 +96,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = mode;
 		out.body.entry.nodeid = ino;
+		out.body.entry.attr.ino = ino;
 		out.body.entry.generation = 2;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = 0;
@@ -121,6 +123,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = mode;
 		out.body.entry.nodeid = ino;
+		out.body.entry.attr.ino = ino;
 		out.body.entry.generation = 1;
 		out.body.entry.attr.uid = uid;
 		out.body.entry.attr_valid = UINT64_MAX;
@@ -132,6 +135,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = mode;
 		out.body.entry.nodeid = ino;
+		out.body.entry.attr.ino = ino;
 		out.body.entry.generation = 1;
 		out.body.entry.attr.uid = uid;
 		out.body.entry.attr_valid = UINT64_MAX;
@@ -160,6 +164,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = mode;
 		out.body.entry.nodeid = ino;
+		out.body.entry.attr.ino = ino;
 		out.body.entry.generation = 1;
 		out.body.entry.attr.uid = uid;
 		out.body.entry.attr_valid = UINT64_MAX;
@@ -189,6 +194,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = mode;
 		out.body.entry.nodeid = ino;
+		out.body.entry.attr.ino = ino;
 		out.body.entry.generation = 1;
 		out.body.entry.attr.ino = ino;
 		out.body.entry.attr_valid = UINT64_MAX;
@@ -215,6 +221,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = mode;
 		out.body.entry.nodeid = ino;
+		out.body.entry.attr.ino = ino;
 		out.body.entry.generation = 1;
 		out.body.entry.attr.ino = ino;
 		out.body.entry.attr_valid = UINT64_MAX;
@@ -226,6 +233,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = mode;
 		out.body.entry.nodeid = ino;
+		out.body.entry.attr.ino = ino;
 		out.body.entry.generation = 1;
 		out.body.entry.attr.ino = ino;
 		out.body.entry.attr_valid = UINT64_MAX;
@@ -243,6 +251,99 @@
 	EXPECT_EQ(ino, sb.st_ino);
 }
 
+/*
+ * If the server returns a FUSE_LOOKUP response for a nodeid that we didn't
+ * lookup, it's a bug.  But we should handle it gracefully.
+ */
+TEST_F(Fhstat, inconsistent_nodeid)
+{
+	const char FULLPATH[] = "mountpoint/some_dir/.";
+	const char RELDIRPATH[] = "some_dir";
+	fhandle_t fhp;
+	struct stat sb;
+	const uint64_t ino_in = 42;
+	const uint64_t ino_out = 43;
+	const mode_t mode = S_IFDIR | 0755;
+	const uid_t uid = 12345;
+
+	EXPECT_LOOKUP(FUSE_ROOT_ID, RELDIRPATH)
+	.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
+		SET_OUT_HEADER_LEN(out, entry);
+		out.body.entry.nodeid = ino_in;
+		out.body.entry.attr.ino = ino_in;
+		out.body.entry.attr.mode = mode;
+		out.body.entry.generation = 1;
+		out.body.entry.attr.uid = uid;
+		out.body.entry.attr_valid = UINT64_MAX;
+		out.body.entry.entry_valid = 0;
+	})));
+
+	EXPECT_LOOKUP(ino_in, ".")
+	.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
+		SET_OUT_HEADER_LEN(out, entry);
+		out.body.entry.nodeid = ino_out;
+		out.body.entry.attr.ino = ino_out;
+		out.body.entry.attr.mode = mode;
+		out.body.entry.generation = 1;
+		out.body.entry.attr.uid = uid;
+		out.body.entry.attr_valid = UINT64_MAX;
+		out.body.entry.entry_valid = 0;
+	})));
+
+	ASSERT_EQ(0, getfh(FULLPATH, &fhp)) << strerror(errno);
+	EXPECT_NE(0, fhstat(&fhp, &sb)) << strerror(errno);
+	EXPECT_EQ(EIO, errno);
+}
+
+/*
+ * If the server returns a FUSE_LOOKUP response where the nodeid doesn't match
+ * the inode number, and the file system is exported, it's a bug.  But we
+ * should handle it gracefully.
+ */
+TEST_F(Fhstat, inconsistent_ino)
+{
+	const char FULLPATH[] = "mountpoint/some_dir/.";
+	const char RELDIRPATH[] = "some_dir";
+	fhandle_t fhp;
+	struct stat sb;
+	const uint64_t nodeid = 42;
+	const uint64_t ino = 711;	// Could be anything that != nodeid
+	const mode_t mode = S_IFDIR | 0755;
+	const uid_t uid = 12345;
+
+	EXPECT_LOOKUP(FUSE_ROOT_ID, RELDIRPATH)
+	.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
+		SET_OUT_HEADER_LEN(out, entry);
+		out.body.entry.nodeid = nodeid;
+		out.body.entry.attr.ino = nodeid;
+		out.body.entry.attr.mode = mode;
+		out.body.entry.generation = 1;
+		out.body.entry.attr.uid = uid;
+		out.body.entry.attr_valid = UINT64_MAX;
+		out.body.entry.entry_valid = 0;
+	})));
+
+	EXPECT_LOOKUP(nodeid, ".")
+	.WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
+		SET_OUT_HEADER_LEN(out, entry);
+		out.body.entry.nodeid = nodeid;
+		out.body.entry.attr.ino = ino;
+		out.body.entry.attr.mode = mode;
+		out.body.entry.generation = 1;
+		out.body.entry.attr.uid = uid;
+		out.body.entry.attr_valid = UINT64_MAX;
+		out.body.entry.entry_valid = 0;
+	})));
+
+	ASSERT_EQ(0, getfh(FULLPATH, &fhp)) << strerror(errno);
+	/*
+	 * The fhstat operation will actually succeed.  But future operations
+	 * will likely fail.
+	 */
+	ASSERT_EQ(0, fhstat(&fhp, &sb)) << strerror(errno);
+	EXPECT_EQ(ino, sb.st_ino);
+}
+
 /* 
  * If the server doesn't set FUSE_EXPORT_SUPPORT, then we can't do NFS-style
  * lookups
@@ -260,6 +361,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = mode;
 		out.body.entry.nodeid = ino;
+		out.body.entry.attr.ino = ino;
 		out.body.entry.generation = 1;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = 0;
@@ -282,6 +384,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = S_IFDIR | 0755;
 		out.body.entry.nodeid = ino;
+		out.body.entry.attr.ino = ino;
 		out.body.entry.generation = (uint64_t)UINT32_MAX + 1;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = UINT64_MAX;
@@ -304,6 +407,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = S_IFDIR | 0755;
 		out.body.entry.nodeid = ino;
+		out.body.entry.attr.ino = ino;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = UINT64_MAX;
 	})));
@@ -335,6 +439,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = mode;
 		out.body.entry.nodeid = ino;
+		out.body.entry.attr.ino = ino;
 		out.body.entry.generation = 1;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = 0;
@@ -345,6 +450,7 @@
 		SET_OUT_HEADER_LEN(out, entry);
 		out.body.entry.attr.mode = mode;
 		out.body.entry.nodeid = ino;
+		out.body.entry.attr.ino = ino;
 		out.body.entry.generation = 1;
 		out.body.entry.attr_valid = UINT64_MAX;
 		out.body.entry.entry_valid = 0;