When restarting pgSQL, I get the following log entries:

2010-02-10 16:08:05 EST LOG:  received smart shutdown request
2010-02-10 16:08:05 EST LOG:  autovacuum launcher shutting down
2010-02-10 16:08:05 EST LOG:  shutting down
2010-02-10 16:08:05 EST LOG:  database system is shut down
2010-02-10 16:08:07 EST LOG:  database system was shut down at 2010-02-10 16:08:05 EST
2010-02-10 16:08:07 EST LOG:  autovacuum launcher started
2010-02-10 16:08:07 EST LOG:  database system is ready to accept connections
2010-02-10 16:08:07 EST LOG:  connection received: host=[local]
2010-02-10 16:08:07 EST LOG:  incomplete startup packet
2010-02-10 16:08:07 EST LOG:  connection received: host=[local]
2010-02-10 16:08:07 EST FATAL:  password authentication failed for user "postgres"
2010-02-10 16:08:08 EST LOG:  connection received: host=[local]
2010-02-10 16:08:08 EST FATAL:  password authentication failed for user "postgres"
2010-02-10 16:08:08 EST LOG:  connection received: host=[local]
2010-02-10 16:08:08 EST FATAL:  password authentication failed for user "postgres"
2010-02-10 16:08:09 EST LOG:  connection received: host=[local]
2010-02-10 16:08:09 EST FATAL:  password authentication failed for user "postgres"
2010-02-10 16:08:09 EST LOG:  connection received: host=[local]
2010-02-10 16:08:09 EST FATAL:  password authentication failed for user "postgres"
2010-02-10 16:08:10 EST LOG:  connection received: host=[local]
2010-02-10 16:08:10 EST FATAL:  password authentication failed for user "postgres"
2010-02-10 16:08:10 EST LOG:  connection received: host=[local]
2010-02-10 16:08:10 EST FATAL:  password authentication failed for user "postgres"
2010-02-10 16:08:11 EST LOG:  connection received: host=[local]
2010-02-10 16:08:11 EST FATAL:  password authentication failed for user "postgres"
2010-02-10 16:08:11 EST LOG:  connection received: host=[local]
2010-02-10 16:08:11 EST FATAL:  password authentication failed for user "postgres"
2010-02-10 16:08:12 EST LOG:  connection received: host=[local]
2010-02-10 16:08:12 EST FATAL:  password authentication failed for user "postgres"
2010-02-10 16:08:12 EST LOG:  connection received: host=[local]
2010-02-10 16:08:12 EST FATAL:  password authentication failed for user "postgres"
2010-02-10 16:08:12 EST LOG:  connection received: host=[local]
2010-02-10 16:08:12 EST LOG:  incomplete startup packet

My question regarding a potential consequence of this is posted here: http://stackoverflow.com/questions/2238954/mdb2-says-connection-failed-db-logs-say-otherwise , but I didn't realize this was happening when I asked that question, and I figured this [part of the] problem is for SF.

Edit: I can connect to the database and manipulate things normally with the psql CLI and the postgres user.