CouchDB throws a timeout error on all connections

Symptoms: Files in web interface working, Contacts and Notes give 500
server error again. Also direct connections to couchdb fail. The
errors look like this to the clients:

status:500, response:
'{"error":"timeout","reason":"{gen_server,call,\\n [couch_server,\\n
{open,<<\\"users\\">>,[{user_ctx,{user_ctx,null,[<<\\"_admin\\">>]}}]}]}"}\n'

And like this in the couchdb logs:

[Thu, 15 Apr 2010 21:25:06 GMT] [error] [<0.22417.961>] Uncaught error in HTTP request: {exit,
                                  {timeout,
                                   {gen_server,call,
                                    [couch_server,
                                     {open,<<"users">>,
                                      [{user_ctx,
                                        {user_ctx,null,[<<"_admin">>]}}]}]}}}

After consulting with Damien Katz, it appears that there is a bug in
the open-dbs-async patch we use. I created an updated version of the
patch, packaged it for Hardy and Lucid, and am now testing this.