nginx proxy_cache配置后不生成缓存文件，也不缓存图片，且css,js等报500

[u012914916]

实在是搞不好了，，求帮助。。。
nginx.conf

http {
	#cache begin
	proxy_buffering on;
	proxy_cache_valid any 10m;
	proxy_cache_path /data/cache levels=1:2 keys_zone=my-cache:8m max_size=1000m inactive=600m;
	proxy_temp_path /data/temp;
	proxy_buffer_size 4k;
	proxy_buffers 100 8k;
	#cache end

	upstream upserver {
		server 104.149.128.130;
	}
    include /etc/nginx/conf.d/*.conf;
}

conf.d/default.conf

server {
    listen       80;
    server_name  localhost;

	location / {
            root   /var/www/html; 
            index  index.php index.html index.htm;
			if (-e $request_filename) {
                break;
            }
            if (!-e $request_filename) {
                rewrite ^/(.*)?$ /index.php/$1 last;
                break;
            }
			proxy_pass http://upserver;
			proxy_next_upstream http_502 http_504 error timeout invalid_header;
			proxy_cache my-cache;
			proxy_cache_valid 200 304 12h;
			proxy_cache_key $host$uri$is_args$args;
			proxy_set_header Host $host;
			proxy_set_header X-Forwarded-For $remote_addr;
			add_header X-Cache '$upstream_cache_status from $host';
			expires 1d;
    }
	location ~ .+\.php($|/) {
		    root   /var/www/html;
		    fastcgi_pass   127.0.0.1:9000;
		    fastcgi_index  index.php;
		    fastcgi_split_path_info ^((?U).+\.php)(/?.+)$;
			fastcgi_param   SCRIPT_FILENAME $document_root$fastcgi_script_name;
			fastcgi_param   PATH_INFO $fastcgi_path_info;
			fastcgi_param   PATH_TRANSLATED $document_root$fastcgi_path_info;
			fastcgi_connect_timeout 300;
			fastcgi_read_timeout 300;
			fastcgi_send_timeout 300;
			fastcgi_buffer_size 64k;
			fastcgi_buffers   4 32k;
			fastcgi_busy_buffers_size 64k;
			fastcgi_temp_file_write_size 64k;
			include        fastcgi_params;
    }
	location ~ .+\.(php|jsp+cgi) {
			proxy_set_header Host $host;
			proxy_set_header X-Forwarded-For $remote_addr;
			proxy_pass http://upserver;
	}
#	location ~ \.(htm|html|gif|jpg|jpeg|png|bmp|ico|css|js)$ { 
#			root /var/www/html/static; 
#			expires 48h;
#   }
#	location ~ \.(txt)$ { 
#			root /var/www/html/data/html; 
#			expires 24h;
#   }

}

[u012914916]

我重启nginx，会在/data下生成temp和cache文件夹，所有者和组以及权限我都改为了nginx:nginx 777。 但是还是不会再temp和cache文件夹下生成缓存文件，而且我这样配置后css和js文件会报500。 当然配置proxy_cache前是正常的。

[u012914916]

nginx的执行用户和组： user nginx nginx;