signal 17 (SIGCHLD) received when used "secure authentication" in Thunderbird

[umask]

Добрый день,



при вот таком конфиге:



------------------

user  nginx;

worker_processes  1;



error_log  logs/error.log debug;





events {

    worker_connections  2048;

    # Linux - epoll

    use epoll;

}



mail {

    server_name  mail.example.ru;



    auth_http  127.0.0.1:8080/cgi-bin/auth;

    auth_http_timeout   15s;



    so_keepalive on;



    imap_capabilities "CAPABILITY" "IMAP4" "IMAP4rev1" "AUTH=LOGIN" "ACL" "NAMESPACE" "CHILDREN" "SORT" "QUOTA" "THREAD=ORDEREDSUBJECT" "UNSELECT";

    pop3_capabilities "TOP" "USER" "UIDL";



    pop3_auth    plain;

    smtp_auth    login plain;



    ssl_certificate      /opt/nginx/conf/test.pem;

    ssl_certificate_key  /opt/nginx/conf/test.pem;

    

    # POP3 with STARTTLS

    server {

        listen     110;

        protocol   pop3;

        proxy      on;

        starttls   on;

    }



    # POP3 with SSL

    server {

        listen    995;

        protocol  pop3;

        proxy     on;

        ssl       on;

    }



    # IMAP with STARTTLS

    server {

        listen    143;

        protocol  imap;

        proxy     on;

        starttls  on;

    }



    # IMAP with SSL

    server {

        listen    993;

        protocol  imap;

        proxy     on;

        ssl       on;

    }



    # SMTP

    server {

        listen    25;

        protocol  smtp;

        proxy     on;

        # RFC2821:

        timeout   300s; 

   }

   

   # SMTP with SSL

   server {

        listen    465;

        protocol  smtp;

        proxy     on;

        ssl       on;

        # RFC2821:

        timeout   300s; 

   }

}

------------------



при подключении к POP3-порту nginx'а через Thunderbird и использовании secure authentication nginx в лог пишет следующее:



2007/07/09 12:18:05 [info] 31219#0: *10 client 172.16.56.1 connected to 0.0.0.0:110

2007/07/09 12:18:05 [notice] 31194#0: signal 17 (SIGCHLD) received

2007/07/09 12:18:05 [alert] 31194#0: worker process 31219 exited on signal 11

2007/07/09 12:18:05 [notice] 31194#0: start worker process 31238



На pop3-backend при этом ничего не передаётся. Thunderbird 2.0.0.4 ошибок не выдаёт.

Видимо, это бага. Так ли?



--

Ilyas