1// run
2
3// Copyright 2013 The Go Authors. All rights reserved.
4// Use of this source code is governed by a BSD-style
5// license that can be found in the LICENSE file.
6
7// Used to die in runtime due to init goroutine exiting while
8// locked to main thread.
9
10package main
11
12import (
13	"os"
14	"runtime"
15)
16
17func init() {
18	c := make(chan int, 1)
19	defer func() {
20		c <- 0
21	}()
22	go func() {
23		os.Exit(<-c)
24	}()
25	runtime.Goexit()
26}
27
28func main() {
29}
30
31/* Before fix:
32
33invalid m->locked = 2
34fatal error: internal lockOSThread error
35
36goroutine 2 [runnable]:
37runtime.MHeap_Scavenger()
38	/Users/rsc/g/go/src/pkg/runtime/mheap.c:438
39runtime.goexit()
40	/Users/rsc/g/go/src/pkg/runtime/proc.c:1313
41created by runtime.main
42	/Users/rsc/g/go/src/pkg/runtime/proc.c:165
43
44goroutine 3 [runnable]:
45main.func·002()
46	/Users/rsc/g/go/test/fixedbugs/issue5963.go:22
47created by main.init·1
48	/Users/rsc/g/go/test/fixedbugs/issue5963.go:24 +0xb9
49exit status 2
50*/
51