get_post() numberposts -1 returning blank screen

I have a problem with returning all my posts for a custom post type.
This is the code I am using below.

$arch_nl_args = array('post_type' => 'bqdaily_archived', 'numberposts' => -1);
$arch_nls = get_posts($arch_nl_args);

If I change the numberposts to 100 it works, there is currently 118 posts for this post type but it expands on a daily bases.

Is this a problem with my server, if so what could I do.