How do you gracefully handle eio errrors, ie. file you want to stat doesn't exist?

[mirek]

Currently the whole EM flips over:

/Library/Ruby/Gems/1.8/gems/eio-0.1/lib/eio/eventmachine.rb:13:in `poll': No such file or directory - /test/testfile (Errno::ENOENT)
    from /Library/Ruby/Gems/1.8/gems/eio-0.1/lib/eio/eventmachine.rb:13:in `notify_readable'
    from /Library/Ruby/Gems/1.8/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run_machine'
    from /Library/Ruby/Gems/1.8/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run'
    from server.rb:7