Hi.

I finally managed to catch this situation.
I have a log from nginx running the following config:

worker_processes 8;
worker_rlimit_nofile 16384;

error_log /var/log/nginx/error.log debug;
pid /var/run/nginx.pid;

events {
worker_connections 1024;
use eventport;
}

It can be obtained from: http://music.enaza.ru/error.log.bad.gz

Around 13:36 August, 1st, log time, nginx stopped handling web-request (I gor timeout in browser). This situation was cleared with nginx restart.

nginx version and modules information:

nginx version: nginx/1.4.1
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --with-http_ssl_module --with-debug --with-http_realip_module --with-http_xslt_module --with-pcre=../pcre-8.33 --with-cc-opt=-m64 --with-ld-opt=-m64 --with-http_secure_link_module --with-pcre-opt=-m64 --with-http_stub_status_module --with-poll_module --with-select_module

Thanks.
Eugene.