Avoid zombie processes when parallel builds fail (#11923)

sphinx-doc · Feb 3, 2024 · ceb3b2a · ceb3b2a
1 parent 9faf114
commit ceb3b2a
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/sphinx/util/parallel.py b/sphinx/util/parallel.py
@@ -94,7 +94,12 @@ def add_task(
         proc = context.Process(target=self._process, args=(psend, task_func, arg))
         self._procs[tid] = proc
         self._precvsWaiting[tid] = precv
-        self._join_one()
+        try:
+            self._join_one()
+        except Exception:
+            # shutdown other child processes on failure
+            # (e.g. OSError: Failed to allocate memory)
+            self.terminate()
 
     def join(self) -> None:
         try: