diff --git a/torch/_inductor/compile_worker/subproc_pool.py b/torch/_inductor/compile_worker/subproc_pool.py
index f3f8e7b3b3ef3e..4260ae80e2abca 100644
--- a/torch/_inductor/compile_worker/subproc_pool.py
+++ b/torch/_inductor/compile_worker/subproc_pool.py
@@ -90,7 +90,6 @@ def __init__(self, nprocs: int):
         self.write_lock = threading.Lock()
         self.read_pipe: Pipe = typing.cast(Pipe, self.process.stdout)
         self.read_thread = threading.Thread(target=self._read_thread, daemon=True)
-        self.read_thread.start()
 
         self.futures_lock = threading.Lock()
         self.pending_futures: Dict[int, Future[Any]] = {}
@@ -98,6 +97,10 @@ def __init__(self, nprocs: int):
 
         self.running = True
 
+        # Start thread last to ensure all member variables are initialized
+        # before any access.
+        self.read_thread.start()
+
     def submit(self, job_fn: Callable[..., Any], *args):
         if args:
             job_fn = functools.partial(job_fn, *args)