3. ovsdb/ovsdb-server.c:505:5:
 freed_arg: "shash_replace_nocopy" frees "filename".
6. ovsdb/ovsdb-server.c:507:9:
 pass_freed_arg: Passing freed pointer "filename" as an argument to 
"vlog".
 #   505|       conf = shash_replace_nocopy(db_conf, filename, conf);
 #   506|       if (conf) {
 #   507|->         VLOG_WARN("Duplicate database configuration: %s", filename);
 #   508|           db_config_destroy(conf);
 #   509|       }