Don't mark main_thread (Bug#36155)

* thread.c (mark_threads_callback): Don't mark main_thread.
2019-06-10 12:34:38 +02:00
parent 4904fb352c
commit 1877b7b4d7
1 changed files with 4 additions and 1 deletions
--- a/src/thread.c
+++ b/src/thread.c
@@ -645,7 +645,10 @@ mark_threads_callback (void *ignore)
      Lisp_Object thread_obj;

      XSETTHREAD (thread_obj, iter);
-      mark_object (thread_obj);
+      /* Don't mark main_thread, since it is not allocated
+	 dynamically, thus nothing would unmark it.  */
+      if (iter != &main_thread)
+	mark_object (thread_obj);
      mark_one_thread (iter);
    }
 }