Application scgi_rails error

Hello,

My application in production was running fine, until i got more and more
of those message:

I do not know where it come from, and need help to get rid of it

Errno::ECONNRESET (Connection reset by peer):
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/cgi_process.rb:188:in
flush' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/cgi_process.rb:188:inout’
/usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/dispatcher.rb:38:in
dispatch' /usr/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/bin/scgi_service:23:inprocess_request’
/usr/lib/ruby/1.8/thread.rb:135:in synchronize' /usr/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/bin/scgi_service:21:inprocess_request’
/usr/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:291:in
read_header' /usr/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:253:inhandle_client’
/usr/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:234:in
initialize' /usr/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:234:innew’
/usr/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:234:in
handle_client' /usr/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:188:inlisten’
/usr/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:186:in
initialize' /usr/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:186:innew’
/usr/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:186:in
listen' /usr/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/lib/scgi.rb:412:inrun’
/usr/lib/ruby/gems/1.8/gems/scgi_rails-0.4.3/bin/scgi_service:61

Any help would be really appreciated