diff --git a/common/crypto/chunk.go b/common/crypto/chunk.go
index 9cd48181..beec6497 100644
--- a/common/crypto/chunk.go
+++ b/common/crypto/chunk.go
@@ -1,11 +1,13 @@
 package crypto
 
 import (
+	"context"
 	"encoding/binary"
 	"io"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/errors"
 )
 
 // ChunkSizeDecoder is a utility class to decode size value from bytes.
@@ -117,6 +119,7 @@ func (r *ChunkStreamReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 	}
 	r.leftOverSize = size
 
+	errors.LogInfo(context.Background(), "StreamReader read ", size)
 	mb, err := r.reader.ReadAtMost(size)
 	if !mb.IsEmpty() {
 		r.leftOverSize -= mb.Len()
diff --git a/common/mux/reader.go b/common/mux/reader.go
index b9714cdf..c3084e50 100644
--- a/common/mux/reader.go
+++ b/common/mux/reader.go
@@ -1,6 +1,7 @@
 package mux
 
 import (
+	"context"
 	"io"
 
 	"github.com/xtls/xray-core/common/buf"
@@ -33,6 +34,7 @@ func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 	}
 
 	size, err := serial.ReadUint16(r.reader)
+	errors.LogInfo(context.Background(), "PacketReader read ", size, r.dest)
 	if err != nil {
 		return nil, err
 	}
diff --git a/common/mux/writer.go b/common/mux/writer.go
index a6dc551d..e9c113cb 100644
--- a/common/mux/writer.go
+++ b/common/mux/writer.go
@@ -1,8 +1,11 @@
 package mux
 
 import (
+	"context"
+
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/serial"
@@ -106,6 +109,7 @@ func (w *Writer) WriteMultiBuffer(mb buf.MultiBuffer) error {
 			mb = mb2
 			chunk = buf.MultiBuffer{b}
 		}
+		errors.LogInfo(context.Background(), "MuxWriter write ", chunk.Len(), w.dest)
 		if err := w.writeData(chunk); err != nil {
 			return err
 		}