src/cmd/trace/gstate.go | 5 +++++

diff --git a/src/cmd/trace/gstate.go b/src/cmd/trace/gstate.go
index 638d492670a6e74cfe3945db9b77eb002bd49caa..4b380db9f53cd792bc1d73e87880f393d29a3da3 100644
--- a/src/cmd/trace/gstate.go
+++ b/src/cmd/trace/gstate.go
@@ -257,6 +257,10 @@ 	var stk int
 	if gs.lastStopStack != trace.NoStack {
 		stk = ctx.Stack(viewerFrames(gs.lastStopStack))
 	}
+	var endStk int
+	if stack != trace.NoStack {
+		endStk = ctx.Stack(viewerFrames(stack))
+	}
 	// Check invariants.
 	if gs.startRunningTime == 0 {
 		panic("silently broken trace or generator invariant (startRunningTime != 0) not held")
@@ -270,6 +274,7 @@ 		Ts:       ctx.elapsed(gs.startRunningTime),
 		Dur:      ts.Sub(gs.startRunningTime),
 		Resource: uint64(gs.executing),
 		Stack:    stk,
+		EndStack: endStk,
 	})
 
 	// Flush completed ranges.