apache模块apr_file_open，permission denied

apr_file_t *fd = NULL;
  apr_status_t rc;
  //const char *fspec = "/home/jason/jason_dir/save.txt";
  const char *fspec = "/etc/httpd/save.txt";

  rc = apr_file_open(&fd, fspec, APR_READ | APR_WRITE | APR_CREATE,
                       APR_OS_DEFAULT, p);
  if (rc != APR_SUCCESS) {
      ap_log_error(APLOG_MARK, APLOG_WARNING, rc, s,
                   "mod_proxy_html: unable to open(%s, read | write | create), skipping", fspec);
    }

是为什么啊？

楼主在看源代码啊？厉害！