permission denied

После обновления Nginx внезапно появилась ошибка: 2009/06/23 12:38:22 [crit] 808#0: *724154 open() “/var/nginx/tmp/proxy_temp/4/83/0000002834″ failed (13: Permission denied) while reading upstream, client: XXX.XXX.XXX.XXX, server: xxx.host.com, request: “GET /dir/page.php”, upstream...