diff --git a/lib/common/netpackager.go b/lib/common/netpackager.go
index 8e91de8..1252710 100644
--- a/lib/common/netpackager.go
+++ b/lib/common/netpackager.go
@@ -160,6 +160,7 @@ func (Self *MuxPackager) Pack(writer io.Writer) (err error) {
 }
 
 func (Self *MuxPackager) UnPack(reader io.Reader) (err error) {
+	Self.Length=0
 	err = binary.Read(reader, binary.LittleEndian, &Self.Flag)
 	if err != nil {
 		return
diff --git a/lib/common/util.go b/lib/common/util.go
index ce2b896..812c543 100755
--- a/lib/common/util.go
+++ b/lib/common/util.go
@@ -264,15 +264,14 @@ func GetPortByAddr(addr string) int {
 	return p
 }
 
-func CopyBuffer(dst io.Writer, src io.Reader) (written int64, err error) {
+func CopyBuffer(dst io.Writer, src io.Reader,connId int32) (written int64, err error) {
 	buf := pool.GetBufPoolCopy()
 	defer pool.PutBufPoolCopy(buf)
 	for {
 		nr, er := src.Read(buf)
-		logs.Warn("read finish", nr, er)
 		if nr > 0 {
+			logs.Warn("write",connId, nr, string(buf[0:10]))
 			nw, ew := dst.Write(buf[0:nr])
-			logs.Warn("write finish", nw, ew)
 			if nw > 0 {
 				written += int64(nw)
 			}
diff --git a/lib/mux/conn.go b/lib/mux/conn.go
index cbaf935..6c6ab95 100644
--- a/lib/mux/conn.go
+++ b/lib/mux/conn.go
@@ -46,7 +46,6 @@ func NewConn(connId int32, mux *Mux) *conn {
 }
 
 func (s *conn) Read(buf []byte) (n int, err error) {
-	logs.Warn("starting read ", s.connId)
 	if s.isClose || buf == nil {
 		return 0, errors.New("the conn has closed")
 	}
@@ -73,18 +72,16 @@ func (s *conn) Read(buf []byte) (n int, err error) {
 			s.Close()
 			return 0, io.EOF
 		} else {
-			pool.PutBufPoolCopy(s.readBuffer)
+			//pool.PutBufPoolCopy(s.readBuffer)
 			if node.val == nil {
 				//close
 				s.sendClose = true
 				s.Close()
-				logs.Warn("close from read msg ", s.connId)
 				return 0, io.EOF
 			} else {
 				s.readBuffer = node.val
 				s.endRead = node.l
 				s.startRead = 0
-				logs.Warn("get a new data buffer ", s.connId)
 			}
 		}
 	}
@@ -95,12 +92,10 @@ func (s *conn) Read(buf []byte) (n int, err error) {
 		n = copy(buf, s.readBuffer[s.startRead:s.endRead])
 		s.startRead += n
 	}
-	logs.Warn("end read ", s.connId)
 	return
 }
 
 func (s *conn) Write(buf []byte) (n int, err error) {
-	logs.Warn("trying write", s.connId)
 	if s.isClose {
 		return 0, errors.New("the conn has closed")
 	}
@@ -120,7 +115,6 @@ func (s *conn) Write(buf []byte) (n int, err error) {
 	if s.isClose {
 		return 0, io.EOF
 	}
-	logs.Warn("write success ", s.connId)
 	return len(buf), nil
 }
 func (s *conn) write(buf []byte, ch chan struct{}) {
@@ -139,9 +133,7 @@ func (s *conn) write(buf []byte, ch chan struct{}) {
 }
 
 func (s *conn) Close() (err error) {
-	logs.Warn("start closing ", s.connId)
 	if s.isClose {
-		logs.Warn("already closed", s.connId)
 		return errors.New("the conn has closed")
 	}
 	s.isClose = true
@@ -153,7 +145,6 @@ func (s *conn) Close() (err error) {
 	s.mux.connMap.Delete(s.connId)
 	if !s.mux.IsClose {
 		if !s.sendClose {
-			logs.Warn("start send closing msg", s.connId)
 			err = s.mux.sendInfo(common.MUX_CONN_CLOSE, s.connId, nil)
 			logs.Warn("send closing msg ok ", s.connId)
 			if err != nil {
@@ -161,7 +152,6 @@ func (s *conn) Close() (err error) {
 				return
 			}
 		} else {
-			logs.Warn("send mux conn close pass ", s.connId)
 		}
 	}
 	return
diff --git a/lib/mux/mux.go b/lib/mux/mux.go
index c099d51..e6daae7 100644
--- a/lib/mux/mux.go
+++ b/lib/mux/mux.go
@@ -85,7 +85,6 @@ func (s *Mux) Addr() net.Addr {
 
 func (s *Mux) sendInfo(flag uint8, id int32, content []byte) (err error) {
 	if flag == common.MUX_NEW_MSG {
-		logs.Warn("trying write to mux new msg", id)
 	}
 	buf := pool.BuffPool.Get()
 	pack := common.MuxPackager{}
@@ -109,10 +108,8 @@ func (s *Mux) sendInfo(flag uint8, id int32, content []byte) (err error) {
 	}
 	pool.BuffPool.Put(buf)
 	if flag == common.MUX_CONN_CLOSE {
-		logs.Warn("write to mux conn close success", id)
 	}
 	if flag == common.MUX_NEW_MSG {
-		logs.Warn("write to mux new msg success", id)
 	}
 	return
 }
@@ -164,6 +161,11 @@ func (s *Mux) readSession() {
 			if pack.UnPack(s.conn) != nil {
 				break
 			}
+			if pack.Flag != 0 && pack.Flag != 7 {
+				if pack.Length>10 {
+					logs.Warn(pack.Flag, pack.Id, pack.Length,string(pack.Content[:10]))
+				}
+			}
 			s.pingOk = 0
 			switch pack.Flag {
 			case common.MUX_NEW_CONN: //new conn
@@ -180,7 +182,6 @@ func (s *Mux) readSession() {
 				continue
 			}
 			if conn, ok := s.connMap.Get(pack.Id); ok && !conn.isClose {
-				logs.Warn("read session flag id", pack.Flag, pack.Id)
 				switch pack.Flag {
 				case common.MUX_NEW_MSG: //new msg from remote conn
 					//insert wait queue
@@ -190,7 +191,6 @@ func (s *Mux) readSession() {
 						conn.readWait = false
 						conn.readCh <- struct{}{}
 					}
-					logs.Warn("push a read buffer ", conn.connId, pack.Id)
 				case common.MUX_NEW_CONN_OK: //conn ok
 					conn.connStatusOkCh <- struct{}{}
 				case common.MUX_NEW_CONN_Fail:
@@ -203,7 +203,6 @@ func (s *Mux) readSession() {
 						conn.readCh <- struct{}{}
 					}
 					s.connMap.Delete(pack.Id)
-					logs.Warn("read session mux conn close finish", pack.Id)
 				}
 			} else if pack.Flag == common.MUX_NEW_MSG {
 				pool.PutBufPoolCopy(pack.Content)
diff --git a/lib/mux/mux_test.go b/lib/mux/mux_test.go
index 5b571d0..2d3d2d0 100644
--- a/lib/mux/mux_test.go
+++ b/lib/mux/mux_test.go
@@ -26,25 +26,20 @@ func TestNewMux(t *testing.T) {
 	time.Sleep(time.Second * 3)
 	go func() {
 		m2 := NewMux(conn2, "tcp")
-		connCh := make(chan bool, 1)
 		for {
 			c, err := m2.Accept()
 			if err != nil {
 				log.Fatalln(err)
 			}
-			connCh <- true
-			go func(c net.Conn, ch chan bool) {
-				c2, err := net.Dial("tcp", "127.0.0.1:80")
-				if err != nil {
-					log.Fatalln(err)
-				}
-				go common.CopyBuffer(c2, c)
-				common.CopyBuffer(c, c2)
-				c2.Close()
-				c.Close()
-				logs.Warn("close npc")
-				<-ch
-			}(c, connCh)
+			c2, err := net.Dial("tcp", "127.0.0.1:8080")
+			if err != nil {
+				log.Fatalln(err)
+			}
+			go common.CopyBuffer(c2, c,0)
+			common.CopyBuffer(c, c2,0)
+			c2.Close()
+			c.Close()
+			logs.Warn("close npc")
 		}
 	}()
 
@@ -54,25 +49,22 @@ func TestNewMux(t *testing.T) {
 		if err != nil {
 			log.Fatalln(err)
 		}
-		connCh := make(chan bool, 1)
 		for {
 			conn, err := l.Accept()
 			if err != nil {
 				log.Fatalln(err)
 			}
-			connCh <- true
-			go func(conn net.Conn, ch chan bool) {
-				tmpCpnn, err := m1.NewConn()
-				if err != nil {
-					log.Fatalln(err)
-				}
-				go common.CopyBuffer(tmpCpnn, conn)
-				common.CopyBuffer(conn, tmpCpnn)
-				conn.Close()
-				//tmpCpnn.Close()
-				logs.Warn("close from out nps ", tmpCpnn.connId)
-				<-ch
-			}(conn, connCh)
+
+			tmpCpnn, err := m1.NewConn()
+			if err != nil {
+				log.Fatalln(err)
+			}
+			go common.CopyBuffer(tmpCpnn, conn,tmpCpnn.connId)
+			_, err = common.CopyBuffer(conn, tmpCpnn,tmpCpnn.connId)
+			logs.Warn(err, tmpCpnn.connId)
+			conn.Close()
+			tmpCpnn.Close()
+			logs.Warn("close from out nps ", tmpCpnn.connId)
 		}
 	}()
 
diff --git a/lib/pool/pool.go b/lib/pool/pool.go
index fb337a2..e491a5e 100644
--- a/lib/pool/pool.go
+++ b/lib/pool/pool.go
@@ -33,8 +33,7 @@ var BufPoolSmall = sync.Pool{
 }
 var BufPoolCopy = sync.Pool{
 	New: func() interface{} {
-		buf := make([]byte, PoolSizeCopy)
-		return &buf
+		return make([]byte, PoolSizeCopy)
 	},
 }
 
@@ -46,12 +45,12 @@ func PutBufPoolUdp(buf []byte) {
 
 func PutBufPoolCopy(buf []byte) {
 	if cap(buf) == PoolSizeCopy {
-		BufPoolCopy.Put(&buf)
+		BufPoolCopy.Put(buf[:PoolSizeCopy])
 	}
 }
 
 func GetBufPoolCopy() []byte {
-	return (*BufPoolCopy.Get().(*[]byte))[:PoolSizeCopy]
+	return (BufPoolCopy.Get().([]byte))[:PoolSizeCopy]
 }
 
 func PutBufPoolMax(buf []byte) {