To be or not to be ... I still dont know the answer but at least I know that this field have

to be set ("" seems a good value) before calling pack.

This commit was SVN r5635.

src/mca/schema/base/schema_base_fns.c

@@ -193,7 +193,7 @@ int orte_schema_base_store_my_info(void)
                                                                                                            
     local_pid.value.pid = orte_process_info.pid;
     nodename.value.strptr = strdup(orte_system_info.nodename);
-    
+    value.segment = "";
     /* insert values into registry */
     if (ORTE_SUCCESS != (rc = orte_gpr.put(1, &values))) {
         ORTE_ERROR_LOG(rc);