diff -r ffb01a6c0960 Lib/test/test_socket.py
--- a/Lib/test/test_socket.py	Sun Aug 25 00:04:06 2013 +0100
+++ b/Lib/test/test_socket.py	Sun Aug 25 12:00:06 2013 +0200
@@ -1245,11 +1245,12 @@
                 c.settimeout(1.5)
             with self.assertRaises(ZeroDivisionError):
                 signal.alarm(1)
-                c.sendall(b"x" * (1024**2))
+                c.sendall(b"x" * support.PIPE_MAX_SIZE)
             if with_timeout:
                 signal.signal(signal.SIGALRM, ok_handler)
                 signal.alarm(1)
-                self.assertRaises(socket.timeout, c.sendall, b"x" * (1024**2))
+                self.assertRaises(socket.timeout, c.sendall,
+                                  b"x" * support.PIPE_MAX_SIZE)
         finally:
             signal.alarm(0)
             signal.signal(signal.SIGALRM, old_alarm)