Selecting the Module namespace (828) on Special:ProtectedPages (https://en.wikipedia.org/wiki/Special:ProtectedPages?namespace=828) times out on enwiki. Other namespaces work fine, including 10, and the search works elsewhere on a random smattering of wikis (meta, de.wikipedia, fr.wikiquote, he.wikipedia).
Error message is
PHP fatal error:
entire web request took longer than 60 seconds and timed out