coredump: add note about lack of rollback on oom

2017-02-15 00:45:43 -05:00
parent a7581ff940
commit 561eede4d1
1 changed files with 3 additions and 1 deletions
@@ -1049,7 +1049,9 @@ static int gather_pid_metadata(
                char **comm_fallback,
                char **comm_ret,
                struct iovec *iovec, size_t *n_iovec) {
-        /* We need 25 empty slots in iovec! */
+        /* We need 25 empty slots in iovec!
+         * Note that if we fail on oom later on, we do not roll-back changes to the iovec
+         * structure. (It remains valid, with the first n_iovec fields initialized.) */

        _cleanup_free_ char *exe = NULL, *comm = NULL;
        uid_t owner_uid;