runtime: fix TestLFStackStress
Fixes #7138.
R=r, bradfitz, dave
CC=dvyukov, golang-codereviews
https://golang.org/cl/53910043
diff --git a/src/pkg/runtime/lfstack_test.go b/src/pkg/runtime/lfstack_test.go
index 505aae6..e518777 100644
--- a/src/pkg/runtime/lfstack_test.go
+++ b/src/pkg/runtime/lfstack_test.go
@@ -71,6 +71,8 @@
}
}
+var stress []*MyNode
+
func TestLFStackStress(t *testing.T) {
const K = 100
P := 4 * GOMAXPROCS(-1)
@@ -80,14 +82,15 @@
}
// Create 2 stacks.
stacks := [2]*uint64{new(uint64), new(uint64)}
- // Need to keep additional referenfces to nodes, the stack is not all that type-safe.
- var nodes []*MyNode
+ // Need to keep additional references to nodes,
+ // the lock-free stack is not type-safe.
+ stress = nil
// Push K elements randomly onto the stacks.
sum := 0
for i := 0; i < K; i++ {
sum += i
node := &MyNode{data: i}
- nodes = append(nodes, node)
+ stress = append(stress, node)
LFStackPush(stacks[i%2], fromMyNode(node))
}
c := make(chan bool, P)
@@ -127,4 +130,7 @@
if sum2 != sum {
t.Fatalf("Wrong sum %d/%d", sum2, sum)
}
+
+ // Let nodes be collected now.
+ stress = nil
}
