I’m having a lot of trouble since upgrade to 3.0.1 with get_page_children() function

by

I don’t have enough pages to test, but I have an idea that 10 is default pagination number.

$all_wp_pages = $my_wp_query->query(array(
    'post_type' => 'page',
    'posts_per_page' => -1
    ));

If this doesn’t work I will try to find some time to generate bunch of pages and test.