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42 lines
768 B
Go
42 lines
768 B
Go
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// run
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// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"runtime"
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"time"
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)
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func main() {
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c := make(chan bool, 1)
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go f1(c)
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<-c
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time.Sleep(10 * time.Millisecond)
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go f2(c)
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<-c
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}
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func f1(done chan bool) {
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defer func() {
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recover()
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done <- true
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runtime.Goexit() // left stack-allocated Panic struct on gp->panic stack
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}()
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panic("p")
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}
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func f2(done chan bool) {
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defer func() {
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recover()
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done <- true
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runtime.Goexit()
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}()
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time.Sleep(10 * time.Millisecond) // overwrote Panic struct with Timer struct
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runtime.GC() // walked gp->panic list, found mangled Panic struct, crashed
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panic("p")
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}
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