А кто-нить доковырял проблему озвученную в топиках:
http://forum.nginx.org/read.php?21,185003,185003#msg-185003
http://forum.nginx.org/read.php?20,124008,124008#msg-124008

?

Речь про (при старте, точнее при первом же telnet на 80 порт):
Jul 12 19:14:56 error-log: : 19:14:56 [info] 21298#0: Using 32768KiB of shared memory for push module in /etc/nginx/nginx.conf:147
Jul 12 19:14:56 error-log: : 19:14:56 [alert] 21302#0: epoll_ctl(1, 0) failed (1: Operation not permitted)
Jul 12 19:14:56 error-log: : 19:14:56 [alert] 21302#0: failed to register channel handler while initializing push module worker (1: Operation not permitted)
Jul 12 19:14:56 error-log: : 19:14:56 [alert] 21303#0: epoll_ctl(1, 0) failed (1: Operation not permitted)
Jul 12 19:14:56 error-log: : 19:14:56 [alert] 21303#0: failed to register channel handler while initializing push module worker (1: Operation not permitted)
Jul 12 19:14:56 error-log: : 19:14:56 [alert] 21300#0: cache manager process 21302 exited with fatal code 2 and can not be respawn

на машине 16Gb памяти, пуш модуль не используется в конфиге, 147 строка это конец конфига, закрывающая скобка
гугление ничего не дало

# nginx -V
nginx: nginx version: nginx/1.0.4
nginx: TLS SNI support enabled
nginx: configure arguments: --prefix=/etc/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-log-path=/var/log/nginx/access.log --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --lock-path=/var/lock/nginx.lock --pid-path=/var/run/nginx.pid --with-debug --with-http_addition_module --with-http_dav_module --with-http_flv_module --with-http_geoip_module --with-http_gzip_static_module --with-http_image_filter_module --with-http_perl_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_stub_status_module --with-http_ssl_module --with-http_sub_module --with-http_xslt_module --with-ipv6 --with-sha1=/usr/include/openssl --with-md5=/usr/include/openssl --with-mail --with-mail_ssl_module --add-module=/tmp/buildd/nginx-1.0.4/debian/modules/nginx-development-kit --add-module=/tmp/buildd/nginx-1.0.4/debian/modules/nginx-upstream-fair --add-module=/tmp/buildd/nginx-1.0.4/debian/modules/nginx-echo --add-module=/tmp/buildd/nginx-1.0.4/debian/modules/nginx-lua --add-module=/tmp/buildd/nginx-1.0.4/debian/modules/nginx-http-push --add-module=/tmp/buildd/nginx-1.0.4/debian/modules/nginx-upload-progress --add-module=/tmp/buildd/nginx-1.0.4/debian/modules/nginx-secure-download