Gannet on "Multiple custom Rss Feed"

Hi everyone!

I added two custom Rss Feed to a WP site. In wp-content/theme/themename/functions.php I added this lines:

add_filter('init','init_feed_1');
function init_feed_1() {
    add_feed('feed1','feed_1');
}
function feed_1{
...
}
add_filter('init','init_feed_2');
function init_feed_2() {
    add_feed('feed2','feed_2');
}
function feed_2{
...
}

the first feed has no problem while the second one shows me "unknown page" error. Someone can help me?
Thanks in advance.