1 files changed, 3 insertions, 1 deletions
diff --git a/qemu_mode/patches/afl-qemu-cpu-inl.h b/qemu_mode/patches/afl-qemu-cpu-inl.h
index 0ae6364b..9a98fde3 100644
--- a/qemu_mode/patches/afl-qemu-cpu-inl.h
+++ b/qemu_mode/patches/afl-qemu-cpu-inl.h
@@ -368,8 +368,10 @@ static void afl_forkserver(CPUState *cpu) {
 
     if (WIFSTOPPED(status))
       child_stopped = 1;
-    else if (unlikely(first_run && is_persistent))
+    else if (unlikely(first_run && is_persistent)) {
+      fprintf(stderr, "[AFL] ERROR: no persistent iteration executed\n");
       exit(12);  // Persistent is wrong
+    }
     first_run = 0;
 
     if (write(FORKSRV_FD + 1, &status, 4) != 4) exit(7);