IOV_MAX minimum value 16.

Author: Barenboim

src/kernel/Communicator.cc

@@ -476,11 +476,7 @@ void Communicator::shutdown_service(CommService *service)
 }
 
 #ifndef IOV_MAX
-# ifdef UIO_MAXIOV
-#  define IOV_MAX	UIO_MAXIOV
-# else
-#  define IOV_MAX	1024
-# endif
+# define IOV_MAX	16
 #endif
 
 int Communicator::send_message_sync(struct iovec vectors[], int cnt,

src/kernel/poller.c

@@ -506,11 +506,7 @@ static void __poller_handle_read(struct __poller_node *node,
 }
 
 #ifndef IOV_MAX
-# ifdef UIO_MAXIOV
-#  define IOV_MAX	UIO_MAXIOV
-# else
-#  define IOV_MAX	1024
-# endif
+# define IOV_MAX	16
 #endif
 
 static void __poller_handle_write(struct __poller_node *node,