Timeout en respuesta ajax?

Hola chicos:

En una aplicación respondo a un formulario que postea en ajax con html
con
una tabla html.

En el formulario que genera el post se puede especificar la cantidad de
resultados que se quieren recibir.

En local (con webrick) me funciona perfectamente aunque le ponga valores
grandes,
pero en producción no puedo pasar de 70.

El backtrace no me hace una idea de que sea una cuestión de timeout.
Puede
ser eso?
Alguna idea?

Os lo pego:

On line #2 of app/views/mailwebui/filter.rjs

  1: if @users
  2:   page.replace_html "users_table", :partial => 

“mailwebui/users_table”
3: end

  /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/fcgi_handler.rb:126:in 

exit' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/fcgi_handler.rb:126:inexit_now_handler’
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in
to_proc' /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/json/encoders/core.rb:23:incall’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/json/encoders/core.rb:23
/usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/core_ext/string/iterators.rb:12:in
each_char' /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/core_ext/string/iterators.rb:12:inloop’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/core_ext/string/iterators.rb:12:in
each_char' /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/json/encoders/core.rb:22 /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/core_ext/object/misc.rb:23:inreturning’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/json/encoders/core.rb:21
/usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/json.rb:21:in
call' /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/json.rb:21:inencode’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/json.rb:31:in
raise_on_circular_reference' /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/json.rb:20:inencode’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/core_ext/object/misc.rb:32:in
to_json' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/prototype_helper.rb:653:injavascript_object_for’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/prototype_helper.rb:657:in
arguments_for_call' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/prototype_helper.rb:657:inmap’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/prototype_helper.rb:657:in
arguments_for_call' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/prototype_helper.rb:585:incall’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/prototype_helper.rb:518:in
replace_html' #{RAILS_ROOT}/app/views/mailwebui/filter.rjs:2:in__bind_1179768055_117172’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/core_ext/object/extending.rb:44:in
[]' /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/core_ext/object/extending.rb:44:ininstance_exec’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/prototype_helper.rb:378:in
initialize' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/prototype_helper.rb:670:innew’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/prototype_helper.rb:670:in
update_page' #{RAILS_ROOT}/app/views/mailwebui/filter.rjs:0:in_run_rjs_mailwebui_filter’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:316:in
send' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:316:incompile_and_render_template’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:292:in
render_template' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:251:inrender_file’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:726:in
render_file' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:648:inrender_with_no_layout’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/layout.rb:253:in
render_without_benchmark' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmarking.rb:53:inrender’
/usr/lib/ruby/1.8/benchmark.rb:293:in measure' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmarking.rb:53:inrender’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:942:in
perform_action_without_filters' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/filters.rb:368:inperform_action_without_benchmark’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmarking.rb:69:in
perform_action_without_rescue' /usr/lib/ruby/1.8/benchmark.rb:293:inmeasure’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmarking.rb:69:in
perform_action_without_rescue' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/rescue.rb:82:inperform_action’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:408:in
send' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:408:inprocess_without_filters’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/filters.rb:377:in
process_without_session_management_support' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/session_management.rb:117:inprocess’
/usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/dispatcher.rb:38:in
dispatch' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/fcgi_handler.rb:150:inprocess_request’
/usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/fcgi_handler.rb:54:in
process!' /usr/lib/ruby/1.8/fcgi.rb:600:ineach_cgi’
/usr/lib/ruby/1.8/fcgi.rb:597:in each' /usr/lib/ruby/1.8/fcgi.rb:597:ineach_cgi’
/usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/fcgi_handler.rb:53:in
process!' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/fcgi_handler.rb:23:inprocess!’
/var/rails/mailwebui/src/public/dispatch.fcgi:24

Recognition failed for “”
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/routing.rb:522:in
recognition_failed' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/routing.rb:512:inrecognize!’
/usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/dispatcher.rb:38:in
`dispatch’
/var/rails/mailwebui/src/public/dispatch.rb:10