nginx_error 报错日志 这是什么原因...

2017/11/10 19:38:57 [crit] 25486#0: *5089 SSL_shutdown() failed (SSL: error:140E0197:SSL routines:SSL_shutdown:shutdown while in init) while SSL handshaking, client: 123.139.186.225, server: 0.0.0.0:443
2017/11/10 19:56:22 [crit] 25485#0: *5905 SSL_shutdown() failed (SSL: error:140E0197:SSL routines:SSL_shutdown:shutdown while in init) while SSL handshaking, client: 113.200.107.80, server: 0.0.0.0:443
2017/11/10 19:56:22 [crit] 25485#0: *5906 SSL_shutdown() failed (SSL: error:140E0197:SSL routines:SSL_shutdown:shutdown while in init) while SSL handshaking, client: 113.200.107.80, server: 0.0.0.0:443
2017/11/10 22:02:01 [crit] 1717#0: *2404 SSL_shutdown() failed (SSL: error:140E0197:SSL routines:SSL_shutdown:shutdown while in init) while SSL handshaking, client: 111.19.53.116, server: 0.0.0.0:443
2017/11/10 22:05:47 [crit] 1718#0: *2425 SSL_shutdown() failed (SSL: error:140E0197:SSL routines:SSL_shutdown:shutdown while in init) while SSL handshaking, client: 111.19.53.116, server: 0.0.0.0:443
2017/11/10 22:40:11 [crit] 1717#0: *3569 SSL_shutdown() failed (SSL: error:140E0197:SSL routines:SSL_shutdown:shutdown while in init) while SSL handshaking, client: 111.19.53.116, server: 0.0.0.0:443
2017/11/10 22:40:11 [crit] 1717#0: *3570 SSL_shutdown() failed (SSL: error:140E0197:SSL routines:SSL_shutdown:shutdown while in init) while SSL handshaking, client: 111.19.53.116, server: 0.0.0.0:443