Span lock state error when realloc, May overwrite by user's data?

[Saturn IDC]

package main

import (
"log"
"sync"
"unsafe"

"github.com/heiyeluren/xmm"

)

func main() {
print("Start\n")

f := xmm.Factory{}
m, err := f.CreateMemory(0.6)
if err != nil {
	panic(err)
}

lock := sync.Mutex{}

wg := sync.WaitGroup{}
for i := 0; i < 2; i++ {
	wg.Add(1)

	go func() {
		defer wg.Done()

		for i := 1; i <= 1024; i++ {
			lock.Lock()
			addr, err := m.Alloc(uintptr(i * 4096))
			lock.Unlock()

			if err != nil {
				log.Fatalf("%s", err)
			}

			s := (*[1024 * 4096]byte)(addr)[:uintptr(i*4096):uintptr(i*4096)]

			for idx := range s {
				s[idx] = 255
			}

			lock.Lock()
			err = m.Free(uintptr(unsafe.Pointer(&s[0])))
			lock.Unlock()

			if err != nil {
				panic(err)
			}
		}
	}()
}

wg.Wait()

}

[黑夜路人]

Can you track and check the call logic in the middle of the source code? If any bugs can be found, they can be fixed and a PR can be submitted later. Thank you