https://github.com/python/cpython/issues/139467

diff --git a/Python/ceval.c b/Python/ceval.c
index e5b1b82e45e..fe8c4a7d092 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -352,7 +352,7 @@ _Py_EnterRecursiveCallUnchecked(PyThreadState *tstate)
     }
 }
 
-#if defined(__s390x__)
+#if 0
 #  define Py_C_STACK_SIZE 320000
 #elif defined(_WIN32)
    // Don't define Py_C_STACK_SIZE, ask the O/S