From b14c122a949402169678aa1a154349b2fbd8ddc0 Mon Sep 17 00:00:00 2001
From: fengjiayi <fengjiayi@baidu.com>
Date: Mon, 9 Oct 2017 10:28:26 -0700
Subject: [PATCH] Fix bug

---
 paddle/framework/block_desc.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/paddle/framework/block_desc.cc b/paddle/framework/block_desc.cc
index 01f50e1393..509aa235d3 100644
--- a/paddle/framework/block_desc.cc
+++ b/paddle/framework/block_desc.cc
@@ -74,6 +74,12 @@ void BlockDescBind::Sync() {
     for (auto &op_desc : ops_) {
       op_field.AddAllocated(op_desc->Proto());
     }
+    auto &var_field = *this->desc_->mutable_vars();
+    var_field.Clear();
+    var_field.Reserve(static_cast<int>(vars_.size()));
+    for (auto &var_desc : vars_) {
+      var_field.AddAllocated(var_desc.second->Proto());
+    }
     need_update_ = false;
   }
 }