diff --git a/check/main.c b/check/main.c
index 866da8dc..263a377d 100644
--- a/check/main.c
+++ b/check/main.c
@@ -9024,42 +9024,6 @@ again:
 	return ret;
 }
 
-static int recow_extent_buffer(struct btrfs_root *root, struct extent_buffer *eb)
-{
-	struct btrfs_path path;
-	struct btrfs_trans_handle *trans;
-	struct btrfs_key key;
-	int ret;
-
-	printf("Recowing metadata block %llu\n", eb->start);
-	key.objectid = btrfs_header_owner(eb);
-	key.type = BTRFS_ROOT_ITEM_KEY;
-	key.offset = (u64)-1;
-
-	root = btrfs_read_fs_root(root->fs_info, &key);
-	if (IS_ERR(root)) {
-		fprintf(stderr, "Couldn't find owner root %llu\n",
-			key.objectid);
-		return PTR_ERR(root);
-	}
-
-	trans = btrfs_start_transaction(root, 1);
-	if (IS_ERR(trans))
-		return PTR_ERR(trans);
-
-	btrfs_init_path(&path);
-	path.lowest_level = btrfs_header_level(eb);
-	if (path.lowest_level)
-		btrfs_node_key_to_cpu(eb, &key, 0);
-	else
-		btrfs_item_key_to_cpu(eb, &key, 0);
-
-	ret = btrfs_search_slot(trans, root, &key, &path, 0, 1);
-	btrfs_commit_transaction(trans, root);
-	btrfs_release_path(&path);
-	return ret;
-}
-
 static int delete_bad_item(struct btrfs_root *root, struct bad_item *bad)
 {
 	struct btrfs_path path;
diff --git a/check/mode-common.c b/check/mode-common.c
index d5f6c8ef..195b6efa 100644
--- a/check/mode-common.c
+++ b/check/mode-common.c
@@ -924,3 +924,39 @@ int check_repair_free_space_inode(struct btrfs_fs_info *fs_info,
 	}
 	return ret;
 }
+
+int recow_extent_buffer(struct btrfs_root *root, struct extent_buffer *eb)
+{
+	struct btrfs_path path;
+	struct btrfs_trans_handle *trans;
+	struct btrfs_key key;
+	int ret;
+
+	printf("Recowing metadata block %llu\n", eb->start);
+	key.objectid = btrfs_header_owner(eb);
+	key.type = BTRFS_ROOT_ITEM_KEY;
+	key.offset = (u64)-1;
+
+	root = btrfs_read_fs_root(root->fs_info, &key);
+	if (IS_ERR(root)) {
+		fprintf(stderr, "Couldn't find owner root %llu\n",
+			key.objectid);
+		return PTR_ERR(root);
+	}
+
+	trans = btrfs_start_transaction(root, 1);
+	if (IS_ERR(trans))
+		return PTR_ERR(trans);
+
+	btrfs_init_path(&path);
+	path.lowest_level = btrfs_header_level(eb);
+	if (path.lowest_level)
+		btrfs_node_key_to_cpu(eb, &key, 0);
+	else
+		btrfs_item_key_to_cpu(eb, &key, 0);
+
+	ret = btrfs_search_slot(trans, root, &key, &path, 0, 1);
+	btrfs_commit_transaction(trans, root);
+	btrfs_release_path(&path);
+	return ret;
+}
diff --git a/check/mode-common.h b/check/mode-common.h
index 4c169c6e..161b84a8 100644
--- a/check/mode-common.h
+++ b/check/mode-common.h
@@ -155,4 +155,5 @@ static inline bool is_valid_imode(u32 imode)
 	return true;
 }
 
+int recow_extent_buffer(struct btrfs_root *root, struct extent_buffer *eb);
 #endif
diff --git a/check/mode-lowmem.c b/check/mode-lowmem.c
index a2be0e6d..da6b6fd8 100644
--- a/check/mode-lowmem.c
+++ b/check/mode-lowmem.c
@@ -4957,6 +4957,7 @@ static int check_btrfs_root(struct btrfs_root *root, int check_all)
 	struct btrfs_path path;
 	struct node_refs nrefs;
 	struct btrfs_root_item *root_item = &root->root_item;
+	u64 super_generation = btrfs_super_generation(root->fs_info->super_copy);
 	int ret;
 	int level;
 	int err = 0;
@@ -4978,6 +4979,22 @@ static int check_btrfs_root(struct btrfs_root *root, int check_all)
 	level = btrfs_header_level(root->node);
 	btrfs_init_path(&path);
 
+	if (btrfs_root_generation(root_item) > super_generation + 1) {
+		error(
+	"invalid root generation for root %llu, have %llu expect (0, %llu)",
+		      root->root_key.objectid, btrfs_root_generation(root_item),
+		      super_generation + 1);
+		err |= INVALID_GENERATION;
+		if (repair) {
+			root->node->flags |= EXTENT_BAD_TRANSID;
+			ret = recow_extent_buffer(root, root->node);
+			if (!ret) {
+				printf("Reset generation for root %llu\n",
+					root->root_key.objectid);
+				err &= ~INVALID_GENERATION;
+			}
+		}
+	}
 	if (btrfs_root_refs(root_item) > 0 ||
 	    btrfs_disk_key_objectid(&root_item->drop_progress) == 0) {
 		path.nodes[level] = root->node;
diff --git a/check/mode-lowmem.h b/check/mode-lowmem.h
index d2983fd1..0361fb33 100644
--- a/check/mode-lowmem.h
+++ b/check/mode-lowmem.h
@@ -47,6 +47,7 @@
 #define INODE_FLAGS_ERROR	(1<<23) /* Invalid inode flags */
 #define DIR_ITEM_HASH_MISMATCH	(1<<24) /* Dir item hash mismatch */
 #define INODE_MODE_ERROR	(1<<25) /* Bad inode mode */
+#define INVALID_GENERATION	(1<<26)	/* Generation is too new */
 
 /*
  * Error bit for low memory mode check.