Rails - Jul 2006 - Errors logged but not returned to browser, WEBrick hangs

An app I''ve been developing has been chugging along nicely, but around 
the time I added a new join model a couple of commits ago, my 
development environment has been acting screwy.

1. When there''s an error, the error messages and tracebacks are not 
being returned to the browser. The browser keeps the connection alive 
indefinitely.

2. Stopping the request from the browser side does not release WEBrick. 
The WEBrick process sits and slowly takes up more and more memory until 
I kill it.

3. The error message and traceback are being logged to development.log 
as usual

In order to illsutrate, I placed an error near the top of my 
ApplicationHelper, and I get the following. Please note that the 
"undefined" for_this_agent() method cited in the traceback is simply
the
first method from ApplicationHelper that gets called on the URL I 
requested. It is not the problem. It''s simply the call that triggers 
parsing the helper...and hanging WEBrick in order to demonstrate.

Incidentally, AdminHelper exists and conists of nothing but

module AdminHelper
end

Any insight would be helpful.

------

ApplicationController: missing default helper module ApplicationHelper
AdminController: missing default helper module AdminHelper
  Masteragent Columns (0.010000)   SHOW FIELDS FROM users
  Agent Columns (0.000000)   SHOW FIELDS FROM users
  Role Columns (0.000000)   SHOW FIELDS FROM roles


Processing AdminController#edit (for 127.0.0.1 at 2006-07-24 22:57:46) 
[GET]
  Session ID: ae65e0035db2a018aa8f58178aa67778
  Parameters: {"action"=>"edit",
"id"=>"11", "controller"=>"admin"}
required_perm is admin/edit
  Permission Load (0.000000)
FROM permissions, roles,
 permissions_roles, users_roles,
 users
WHERE users.id = 4
AND users.id = users_roles.user_id
AND users_roles.role_id = roles.id
AND roles.id = permissions_roles.role_id
AND permissions_roles.permission_id = permissions.id
AND permissions.controller = ''admin''
AND permissions.action = ''edit''

  Cmaform Load (0.000000)   SELECT * FROM cmaforms WHERE (cmaforms.id = 
''11'') LIMIT 1


NoMethodError (undefined method `for_this_agent'' for 
#<AdminController:0x55dbec8>):
    /app/controllers/admin_controller.rb:106:in `edit''
    /vendor/rails/actionpack/lib/action_controller/base.rb:910:in
`send''
    /vendor/rails/actionpack/lib/action_controller/base.rb:910:in 
`perform_action_without_filters''
    /vendor/rails/actionpack/lib/action_controller/filters.rb:368:in 
`perform_action_without_benchmark''
    /vendor/rails/actionpack/lib/action_controller/benchmarking.rb:69:in 
`perform_action_without_rescue''
    /vendor/rails/actionpack/lib/action_controller/benchmarking.rb:69:in 
`measure''
    /vendor/rails/actionpack/lib/action_controller/benchmarking.rb:69:in 
`perform_action_without_rescue''
    /vendor/rails/actionpack/lib/action_controller/rescue.rb:82:in 
`perform_action''
    /vendor/rails/actionpack/lib/action_controller/base.rb:381:in
`send''
    /vendor/rails/actionpack/lib/action_controller/base.rb:381:in 
`process_without_filters''
    /vendor/rails/actionpack/lib/action_controller/filters.rb:377:in 
`process_without_session_management_support''
    /vendor/rails/actionpack/lib/action_controller/session_management.rb:117:in 
`process''
    /vendor/rails/railties/lib/dispatcher.rb:38:in `dispatch''
    /vendor/rails/railties/lib/webrick_server.rb:115:in 
`handle_dispatch''
    /vendor/rails/railties/lib/webrick_server.rb:81:in `service''
    C:/ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in `service''
    C:/ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in `run''
    C:/ruby/lib/ruby/1.8/webrick/server.rb:155:in `start_thread''
    C:/ruby/lib/ruby/1.8/webrick/server.rb:144:in `start''
    C:/ruby/lib/ruby/1.8/webrick/server.rb:144:in `start_thread''
    C:/ruby/lib/ruby/1.8/webrick/server.rb:94:in `start''
    C:/ruby/lib/ruby/1.8/webrick/server.rb:89:in `each''
    C:/ruby/lib/ruby/1.8/webrick/server.rb:89:in `start''
    C:/ruby/lib/ruby/1.8/webrick/server.rb:79:in `start''
    C:/ruby/lib/ruby/1.8/webrick/server.rb:79:in `start''
    /vendor/rails/railties/lib/webrick_server.rb:67:in `dispatch''
    /vendor/rails/railties/lib/commands/servers/webrick.rb:59
    C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in 
`require__''
    C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in 
`require''
    /vendor/rails/activesupport/lib/active_support/dependencies.rb:147:in 
`require''
    /vendor/rails/railties/lib/commands/server.rb:30
    C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in 
`require__''
    C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in 
`require''
    ./script/server:3
    -e:4:in `load''
    -e:4



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