code: func Dmesg(size int) []byte {
  	t := uintptr(3) // SYSLOG_ACTION_READ_ALL
  	b := make([]byte, size)
  	amt, _, err := unix.Syscall(unix.SYS_SYSLOG, t, uintptr(unsafe.Pointer(&b[0])), uintptr(len(b)))
  	if err != 0 {
  		return []byte{}
  	}
  	return b[:amt]
  }
docs: // Dmesg returns last messages from the kernel log, up to size bytes