我在 Ubuntu 14.04 上使用 nginx 1.6.0 + HHVM 3.1.0 + memcache 运行博客（在 Wordpress 上）。每隔几个小时（约 12-20 小时），nginx 就会抛出 502 错误，我的博客就会瘫痪。
我试图弄清楚，但我不知道：
- 内存和 CPU 正常（博客关闭时有 770MB 可用内存）
- nginx 日志没有显示任何有用的信息，只有警告（见下面的日志）
- HHVM 日志没有显示任何有用的信息，只有警告（见下面的日志）
我还可以做些什么？
日志和配置
nginx 错误日志
2014/06/16 04:38:10 [warn] 5460#0: duplicate extension "eot", content type: "application/vnd.ms-fontobject", previous content type: "application/octet-stream" in /etc/nginx/mime.types:83
2014/06/16 04:38:11 [warn] 5464#0: duplicate extension "eot", content type: "application/vnd.ms-fontobject", previous content type: "application/octet-stream" in /etc/nginx/mime.types:83
2014/06/16 04:39:26 [warn] 5507#0: duplicate extension "eot", content type: "application/vnd.ms-fontobject", previous content type: "application/octet-stream" in /etc/nginx/mime.types:83
2014/06/16 04:39:33 [warn] 5523#0: duplicate extension "eot", content type: "application/vnd.ms-fontobject", previous content type: "application/octet-stream" in /etc/nginx/mime.types:83
2014/06/16 04:39:34 [warn] 5527#0: duplicate extension "eot", content type: "application/vnd.ms-fontobject", previous content type: "application/octet-stream" in /etc/nginx/mime.types:83
2014/06/16 04:58:34 [warn] 961#0: duplicate extension "eot", content type: "application/vnd.ms-fontobject", previous content type: "application/octet-stream" in /etc/nginx/mime.types:83
2014/06/16 05:03:46 [warn] 951#0: duplicate extension "eot", content type: "application/vnd.ms-fontobject", previous content type: "application/octet-stream" in /etc/nginx/mime.types:83
2014/06/17 07:33:56 [warn] 961#0: duplicate extension "eot", content type: "application/vnd.ms-fontobject", previous content type: "application/octet-stream" in /etc/nginx/mime.types:83
nginx.conf
user www-data;
pid /var/run/nginx.pid;
worker_processes auto;
worker_rlimit_nofile 65000;
events {
worker_connections 2048;
multi_accept on;
use epoll;
}
http {
sendfile on;
tcp_nopush on;
tcp_nodelay on;
access_log off;
error_log /var/log/nginx/error.log crit;
keepalive_timeout 20;
client_header_timeout 20;
client_body_timeout 20;
reset_timedout_connection on;
send_timeout 20;
proxy_buffer_size 128k;
proxy_buffers 4 256k;
proxy_busy_buffers_size 256k;
include /etc/nginx/mime.types;
default_type text/html;
charset UTF-8;
gzip on;
# gzip_static on;
gzip_proxied any;
gzip_min_length 256;
gzip_comp_level 4;
gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
open_file_cache max=65000 inactive=20s;
open_file_cache_valid 30s;
open_file_cache_min_uses 2;
open_file_cache_errors on;
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
}
nginx 博客配置：chefgrill.conf
server {
listen 80 default_server;
server_name chefgrill.de;
index index.php;
if ($http_user_agent !~ FeedBurner) {
rewrite ^/feed/ http://feeds.feedburner.com/chefgrill last;
}
location / {
root /var/www/chefgrill.de/public_html;
try_files $uri $uri/ /index.php?$args;
}
location ~ \.php$ {
root /var/www/chefgrill.de/public_html;
try_files $uri $uri/ /index.php?$args;
fastcgi_keep_conn on;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_buffer_size 128k;
fastcgi_buffers 4 256k;
fastcgi_busy_buffers_size 256k;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
include fastcgi_params;
}
}
hhvm 错误日志
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Cannot access property on non-object in /var/www/chefgrill.de/public_html/wp-content/themes/bbq/archive.php on line 68
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935
\nWarning: Parameter 1 to W3_Plugin_TotalCache::ob_callback() expected to be a reference, value given in /var/www/chefgrill.de/public_html/wp-includes/functions.php on line 2935