go issue8158 源码
golang issue8158 代码
文件路径：/test/fixedbugs/issue8158.go
// run
// Copyright 2014 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.
package main
import (
"runtime"
"time"
)
func main() {
c := make(chan bool, 1)
go f1(c)
<-c
time.Sleep(10 * time.Millisecond)
go f2(c)
<-c
}
func f1(done chan bool) {
defer func() {
recover()
done <- true
runtime.Goexit() // left stack-allocated Panic struct on gp->panic stack
}()
panic("p")
}
func f2(done chan bool) {
defer func() {
recover()
done <- true
runtime.Goexit()
}()
time.Sleep(10 * time.Millisecond) // overwrote Panic struct with Timer struct
runtime.GC() // walked gp->panic list, found mangled Panic struct, crashed
panic("p")
}
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