Index: sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c
===================================================================
--- sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c	(revision 249165)
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c	(working copy)
@@ -990,6 +990,7 @@ free_guid_map_onexit(void *arg)
 
 	while ((gmep = avl_destroy_nodes(ca, &cookie)) != NULL) {
 		dsl_dataset_long_rele(gmep->gme_ds, gmep);
+		dsl_dataset_rele(gmep->gme_ds, FTAG);
 		kmem_free(gmep, sizeof (guid_map_entry_t));
 	}
 	avl_destroy(ca);
@@ -1698,7 +1699,6 @@ add_ds_to_guidmap(const char *name, avl_tree_t *gu
 		gmep->gme_ds = snapds;
 		avl_add(guid_map, gmep);
 		dsl_dataset_long_hold(snapds, gmep);
-		dsl_dataset_rele(snapds, FTAG);
 	}
 
 	dsl_pool_rele(dp, FTAG);