diff --git a/ompi/mca/osc/rdma/osc_rdma_component.c b/ompi/mca/osc/rdma/osc_rdma_component.c
index d436300400..2491ab0f21 100644
--- a/ompi/mca/osc/rdma/osc_rdma_component.c
+++ b/ompi/mca/osc/rdma/osc_rdma_component.c
@@ -998,7 +998,7 @@ static int ompi_osc_rdma_component_select (struct ompi_win_t *win, void **base,
     }
 
     /* initialize the objects, so that always free in cleanup */
-    OBJ_CONSTRUCT(&module->lock, opal_mutex_t);
+    OBJ_CONSTRUCT(&module->lock, opal_recursive_mutex_t);
     OBJ_CONSTRUCT(&module->outstanding_locks, opal_hash_table_t);
     OBJ_CONSTRUCT(&module->pending_posts, opal_list_t);
     OBJ_CONSTRUCT(&module->peer_lock, opal_mutex_t);
diff --git a/ompi/mca/osc/rdma/osc_rdma_frag.h b/ompi/mca/osc/rdma/osc_rdma_frag.h
index 6a5215f770..fcd7243fd0 100644
--- a/ompi/mca/osc/rdma/osc_rdma_frag.h
+++ b/ompi/mca/osc/rdma/osc_rdma_frag.h
@@ -73,9 +73,7 @@ static inline int ompi_osc_rdma_frag_alloc (ompi_osc_rdma_module_t *module, size
             module->rdma_frag = NULL;
 
             if (curr) {
-                OPAL_THREAD_UNLOCK(&module->lock);
                 ompi_osc_rdma_frag_complete (curr);
-                OPAL_THREAD_LOCK(&module->lock);
             }
 
             item = opal_free_list_get (&mca_osc_rdma_component.frags);