IO Error

has anyone seen an IO error like this? Trying to track it down, running
Jruby/Rails on Tomcat here…

INFO: /!\ FAILSAFE /!\ Fri Nov 07 17:26:01 -0500 2008
Status: 500 Internal Server Error
IO Error

/usr/local/tomcat/webapps/myapp/WEB-INF/gems/gems/actionpack-2.1.1/lib/action_controller/request.rb:420:in
`parse_formatted_request_parameters’

/usr/local/tomcat/webapps/myapp/WEB-INF/gems/gems/actionpack-2.1.1/lib/action_controller/cgi_process.rb:80:in
`request_parameters’

/usr/local/tomcat/webapps/myapp/WEB-INF/gems/gems/actionpack-2.1.1/lib/action_controller/request.rb:307:in
`parameters’

/usr/local/tomcat/webapps/myapp/WEB-INF/gems/gems/actionpack-2.1.1/lib/action_controller/request.rb:22:in
`request_method’

/usr/local/tomcat/webapps/myapp/WEB-INF/gems/gems/actionpack-2.1.1/lib/action_controller/request.rb:35:in
`method’

/usr/local/tomcat/webapps/myapp/WEB-INF/gems/gems/actionpack-2.1.1/lib/action_controller/routing/route_set.rb:431:in
`extract_request_environment’

/usr/local/tomcat/webapps/myapp/WEB-INF/gems/gems/actionpack-2.1.1/lib/action_controller/routing/route_set.rb:384:in
`recognize’

/usr/local/tomcat/webapps/myapp/WEB-INF/gems/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:148:in
`handle_request’

/usr/local/tomcat/webapps/myapp/WEB-INF/gems/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:107:in
`dispatch’

/usr/local/tomcat/webapps/myapp/WEB-INF/gems/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:104:in
`dispatch’

/usr/local/tomcat/webapps/myapp/WEB-INF/gems/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:120:in
`dispatch_cgi’

/usr/local/tomcat/webapps/myapp/WEB-INF/gems/gems/actionpack-2.1.1/lib/action_controller/dispatcher.rb:35:in
`dispatch’

file:/usr/local/tomcat/webapps/myapp/WEB-INF/lib/jruby-rack-0.9.1.jar!/rack/adapter/rails.rb:37:in
`serve_rails’

file:/usr/local/tomcat/webapps/myapp/WEB-INF/lib/jruby-rack-0.9.1.jar!/rack/adapter/rails.rb:44:in
`call’

file:/usr/local/tomcat/webapps/myapp/WEB-INF/lib/jruby-rack-0.9.1.jar!/jruby/rack/rails.rb:141:in
`call’

file:/usr/local/tomcat/webapps/myapp/WEB-INF/lib/jruby-rack-0.9.1.jar!/rack/handler/servlet.rb:17:in
`call’
:1