scheduler-goroutine-leak.go

package main

import (
	"fmt"
	"runtime"
)

func waitForIt() {
	ch := make(chan bool)
	<-ch
}

func cpuIntensive(p *int, done chan bool) {
	for i := 1; i < 100000000000; i++ {
		go waitForIt()
	}

	done <- true
}

func main() {
	// trace.Start(os.Stderr)
	// defer trace.Stop()
	runtime.GOMAXPROCS(1)

	x := 0

	done := make(chan bool)
	go cpuIntensive(&x, done)

	runtime.Gosched()
	// printed only after cpuIntensive is completely finished
	fmt.Println("terminou ", x)
}