在wp-admin上有太多的重定向

I downloaded latest Wordpress (4.7.4) and installed it to my localhost (opensuse leap 42.2 with nginx & php-fpm), named it http://wp.local and noticed strange things.

When I open: http://wp.local - everything is great. http://wp.local/hello-world/ and other internal site links - everything is great. but when I open: http://wp.local/wp-admin - I got too many redirects error and blank screen. For example http://wp.local/wp-admin/post-new.php - all is OK. http://wp.local/wp-admin/upload.php - all is OK http://wp.local/wp-admin/plugins.php - all is OK but http://wp.local/wp-admin/update-core.php - I got too many redirects and blank screen. But when I try http://wp.local/index.php/wp-admin/update-core.php - it redirects me to http://wp.local/wp-admin/update-core.php - and page shows, all is ok.

I cant' figure out what is wrong, here is my nginx config:

server {
    listen 80;
    server_name wp.local;
    listen [::]:80 default_server;

    root /home/vitalik/www/wp.local;

    index index.php index.html index.htm;

    location / {
        index index.php index.html index.htm;
        try_files $uri /$uri /index.php?$args;
    }   
    rewrite /wp-admin$ $scheme://$host$uri permanent;

    location ~ [^/]\.php(/|$) {
        fastcgi_split_path_info ^(.+?\.php)(/.*)$;  
        include fastcgi.conf;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_index index.php;
        fastcgi_pass 127.0.0.1:9000;
    }   
}