Events List Mulitple Times For Anonymous User

Any advice how best to debug this? I'm especially looking for a good way to get a "stack trace", since while I don't know who's calling the Event block code 3x, I at least know what code they're calling.

Thanks,
Rob

I tried installing the TWM-logger package (http://threewisemen.ca/twm-logger.jsp), and probably learned something a bit annoying: it looks like event.module is eval'd, so as far as the stack trace is concerned, that's as far as it goes.

Where is a better place in the code to listen? I'm guessing that I want to listen on the side that calls the hook, rather than on the other side.

Thanks,
Rob

OK, last try. If I am logged in as the admin, here is the SQL generated to get the events (I've added a little formatting to make it easier to read):

SELECT n.nid, n.title, n.status, n.moderate, e.* FROM node n  
INNER JOIN event e ON n.nid = e.nid 
WHERE n.type='event' AND '1' AND n.status = 1 AND e.start >= 1111361161 
ORDER BY e.start LIMIT 0, 6

But here is the SQL generated for a simple authenticated user, or an unauthenticated user (both cases, it turns out, display each event 3 times.):

SELECT n.nid, n.title, n.status, n.moderate, e.* FROM node n 
INNER JOIN node_access na ON (na.nid = 0 OR na.nid = n.nid) 
INNER JOIN event e ON n.nid = e.nid 
WHERE n.type='event' AND na.grant_view = 1 AND 
     CONCAT(na.realm, na.gid) IN   
         ('all0','node_privacy_byrole_role1','node_privacy_byrole_user0','og_uid0',   
          'og_group0','term_access1') 
AND n.status = 1 
AND e.start >= 1111361177 
ORDER BY e.start LIMIT 0, 6

Does anyone reading this understand what the nodeperm_user module is trying to do here? Inner Join is a little new to me, so it isn't clear (1) what the SQL does, and (2) what the SQL ought to be doing.

Thanks,
Rob

I've seen a report of a problem that looks comparable:
Module does not work correctly - all node types
I'm linking that issue to this post, and this links it back.

Thanks,
Rob