From 2b55bc57a49ceba419f6bb5f79338a73b124b65b Mon Sep 17 00:00:00 2001
From: Cloud Wu <cloudwu@gmail.com>
Date: Thu, 2 Mar 2017 14:21:56 +0800
Subject: [PATCH] do not response send, may fix issue #578

---
 lualib/skynet.lua | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lualib/skynet.lua b/lualib/skynet.lua
index 4cefc893..7b4c466a 100644
--- a/lualib/skynet.lua
+++ b/lualib/skynet.lua
@@ -211,7 +211,8 @@ function suspend(co, result, command, param, size)
 			end
 
 			local ret
-			if not dead_service[co_address] then
+			-- do not response when session == 0 (send)
+			if co_session ~= 0 and not dead_service[co_address] then
 				if ok then
 					ret = c.send(co_address, skynet.PTYPE_RESPONSE, co_session, f(...)) ~= nil
 					if not ret then