vlib: Handle race in thread barrier processing

[vpp.git] / src / vlib / threads.h

diff --git a/src/vlib/threads.h b/src/vlib/threads.h
index 79f44c8..312323c 100644 (file)
--- a/src/vlib/threads.h
+++ b/src/vlib/threads.h
@@ -416,12 +416,12 @@ vlib_worker_thread_barrier_check (void)
          ed->thread_index = thread_index;
        }
 
-      clib_atomic_fetch_add (vlib_worker_threads->workers_at_barrier, 1);
       if (CLIB_DEBUG > 0)
        {
          vm = vlib_get_main ();
          vm->parked_at_barrier = 1;
        }
+      clib_atomic_fetch_add (vlib_worker_threads->workers_at_barrier, 1);
       while (*vlib_worker_threads->wait_at_barrier)
        ;