1 files changed, 28 insertions, 0 deletions
diff --git a/src/pkg/runtime/gc_test.go b/src/pkg/runtime/gc_test.go
index d40dccb788..a3c731ccb0 100644
--- a/src/pkg/runtime/gc_test.go
+++ b/src/pkg/runtime/gc_test.go
@@ -121,3 +121,31 @@ func TestGcArraySlice(t *testing.T) {
 		}
 	}
 }
+
+func TestGcRescan(t *testing.T) {
+	type X struct {
+		c     chan error
+		nextx *X
+	}
+	type Y struct {
+		X
+		nexty *Y
+		p     *int
+	}
+	var head *Y
+	for i := 0; i < 10; i++ {
+		p := &Y{}
+		p.c = make(chan error)
+		p.nextx = &head.X
+		p.nexty = head
+		p.p = new(int)
+		*p.p = 42
+		head = p
+		runtime.GC()
+	}
+	for p := head; p != nil; p = p.nexty {
+		if *p.p != 42 {
+			t.Fatal("corrupted heap")
+		}
+	}
+}