Lighttpd

This seems to happen anytime the backend scgi process accepts a connection from lighttpd and then, without an answer, closes the connection. The problem still exists in 1.14.15, but doesn't appear to exist in 1.15.0-r1691. Here's a small ruby snippet which can be used as a scgi backend to test the problem:

#!/usr/bin/env ruby

require 'socket'

@listenfd = [TCPServer.new("localhost", 9999)]

loop do
        select(@listenfd) #, nil, nil)
        connfd = @listenfdr0.accept
        connfd.close
end

If lighttpd detects that the backend has accepted the connection and lighttpd sends the request to the backend before lighttpd detects that the backend has closed the connection, lighttpd does not know if the backend partially processed the request or not, and so returns an error. This is intended behavior.

Please provide more details as to what you expect and why.