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-rw-r--r--test/fixedbugs/issue25897a.go34
1 files changed, 34 insertions, 0 deletions
diff --git a/test/fixedbugs/issue25897a.go b/test/fixedbugs/issue25897a.go
new file mode 100644
index 0000000..6a724a7
--- /dev/null
+++ b/test/fixedbugs/issue25897a.go
@@ -0,0 +1,34 @@
+// run
+
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Make sure the runtime can scan args of an unstarted goroutine
+// which starts with a reflect-generated function.
+
+package main
+
+import (
+ "reflect"
+ "runtime"
+)
+
+const N = 100
+
+func main() {
+ runtime.GOMAXPROCS(1)
+ c := make(chan bool, N)
+ for i := 0; i < N; i++ {
+ f := reflect.MakeFunc(reflect.TypeOf(((func(*int))(nil))),
+ func(args []reflect.Value) []reflect.Value {
+ c <- true
+ return nil
+ }).Interface().(func(*int))
+ go f(nil)
+ }
+ runtime.GC()
+ for i := 0; i < N; i++ {
+ <-c
+ }
+}