nginx + 源码编译php 启动错误

输入service php-fpm start 出错，输入systemctl status php-fpm.service显示以下错误。。
但输入php-fpm就能启动了。。这是什么原因
12月 28 03:56:56 a php-fpm[1436]: -D, --daemonize force to run in background, and ignore daemonize option from config file
12月 28 03:56:56 a php-fpm[1436]: -F, --nodaemonize
12月 28 03:56:56 a php-fpm[1436]: force to stay in foreground, and ignore daemonize option from config file
12月 28 03:56:56 a php-fpm[1436]: -O, --force-stderr
12月 28 03:56:56 a php-fpm[1436]: force output to stderr in nodaemonize even if stderr is not a TTY
12月 28 03:56:56 a php-fpm[1436]: -R, --allow-to-run-as-root
12月 28 03:56:56 a php-fpm[1436]: Allow pool to run as root (disabled by default)
12月 28 03:56:56 a systemd[1]: php-fpm.service: control process exited, code=exited status=64
12月 28 03:56:56 a systemd[1]: Failed to start (null).
12月 28 03:56:56 a systemd[1]: Unit php-fpm.service entered failed state.