diff --git a/http2.go b/http2.go
index 944152a..b54a1d4 100644
--- a/http2.go
+++ b/http2.go
@@ -147,7 +147,7 @@ func (c *Conn) run() {
 	errch := make(chan error)
 
 	go func() {
-		buf := make([]byte, 4096)
+		buf := make([]byte, 16*1024)
 		for {
 			n, err := c.conn.Read(buf)
 			if err != nil {
@@ -186,6 +186,7 @@ loop:
 			d1 := C.CBytes(d)
 			ret1 := C.nghttp2_session_mem_recv(c.session,
 				(*C.uchar)(d1), C.size_t(int(len(d))))
+			C.free(d1)
 			if int(ret1) < 0 {
 				c.err = fmt.Errorf("sesion recv error: %s",
 					C.GoString(C.nghttp2_strerror(ret)))
diff --git a/http2_test.go b/http2_test.go
index f31bd3d..6872d9c 100644
--- a/http2_test.go
+++ b/http2_test.go
@@ -32,7 +32,9 @@ func TestHttp2Client(t *testing.T) {
 	param.Add("e", "b")
 	param.Add("f", "d")
 	data := bytes.NewReader([]byte(param.Encode()))
-	req, _ := http.NewRequest("POST", "https://www.simicloud.com/media/httpbin/post?a=b&c=d", data)
+	req, _ := http.NewRequest("POST",
+		"https://www.simicloud.com/media/httpbin/post?a=b&c=d",
+		data)
 	log.Printf("%+v", req)
 	req.Header.Set("accept", "*/*")
 	req.Header.Set("user-agent", "go-nghttp2/1.0")
@@ -42,5 +44,14 @@ func TestHttp2Client(t *testing.T) {
 		t.Fatal(err)
 	}
 	res.Write(os.Stderr)
+
+	req, _ = http.NewRequest("GET",
+		"https://www.simicloud.com/media/httpbin/get?a=b&c=d", nil)
+	res, err = h2conn.CreateRequest(req)
+	if err != nil {
+		t.Fatal(err)
+	}
+	res.Write(os.Stderr)
+
 	log.Println("end")
 }
diff --git a/nghttp2.c b/nghttp2.c
index 657b3da..06d86fd 100644
--- a/nghttp2.c
+++ b/nghttp2.c
@@ -164,7 +164,7 @@ void init_callbacks(nghttp2_session_callbacks *callbacks)
     nghttp2_session_callbacks_set_send_callback(callbacks, send_callback);
     nghttp2_session_callbacks_set_recv_callback(callbacks, recv_callback);
 
-    nghttp2_session_callbacks_set_error_callback2(callbacks, on_error_callback);
+    //nghttp2_session_callbacks_set_error_callback2(callbacks, on_error_callback);
     nghttp2_session_callbacks_set_on_invalid_frame_recv_callback(callbacks, on_invalid_frame_recv_callback);
     nghttp2_session_callbacks_set_on_frame_recv_callback(callbacks,
                                                          on_frame_recv_callback);
@@ -190,7 +190,7 @@ nghttp2_session *init_client_session(size_t data)
     nghttp2_session_callbacks *callbacks;
     nghttp2_session_callbacks_new(&callbacks);
     init_callbacks(callbacks);
-    ret = nghttp2_session_server_new(&session, callbacks, (void *)((int *)(data)));
+    ret = nghttp2_session_client_new(&session, callbacks, (void *)((int *)(data)));
     if (session == NULL)
     {
         printf("c init session failed: %s\n", nghttp2_strerror(ret));