diff --git a/mem/buffers.go b/mem/buffers.go
index 8832a635e934..48aff208865f 100644
--- a/mem/buffers.go
+++ b/mem/buffers.go
@@ -30,6 +30,7 @@ import (
 	"runtime/debug"
 	"sync"
 	"sync/atomic"
+	"time"
 )
 
 // A Buffer represents a reference counted piece of data (in bytes) that can be
@@ -143,7 +144,7 @@ func (b *buffer) ReadOnlyData() []byte {
 }
 
 func (b *buffer) Ref() {
-	b.refCallers = append(b.refCallers, fmt.Sprintf("Count: %d, %s", b.refs.Load(), string(debug.Stack())))
+	b.refCallers = append(b.refCallers, fmt.Sprintf("Count: %d, time: %s, %s", time.Now(), b.refs.Load(), string(debug.Stack())))
 	if b.refs == nil {
 		panic("Cannot ref freed buffer")
 	}
@@ -155,7 +156,7 @@ func (b *buffer) Track() {
 }
 
 func (b *buffer) Free() {
-	b.freeCallers = append(b.freeCallers, fmt.Sprintf("Count: %d, %s", b.refs.Load(), string(debug.Stack())))
+	b.freeCallers = append(b.freeCallers, fmt.Sprintf("Count: %d, time: %q, %s", time.Now(), b.refs.Load(), string(debug.Stack())))
 	if b.refs == nil {
 		panic("Cannot free freed buffer")
 	}
@@ -205,6 +206,7 @@ func (b *buffer) split(n int) (Buffer, Buffer) {
 	split.origData = b.origData
 	split.data = b.data[n:]
 	split.refs = b.refs
+	split.refCallers = append([]string{"split"}, b.refCallers...)
 	split.pool = b.pool
 
 	b.data = b.data[:n]