Issue #3466 has been updated by Aaron Patterson.

File foo.txt added
Status changed from Open to Feedback
Priority changed from Normal to Low

Have you worked with the event machine people on this?  Valgrind seems to indicate that the leak may be originating from EventMachine.  I suspect this is a 3rd party issue.

I've attached my valgrind backtrace.
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http://redmine.ruby-lang.org/issues/show/3466

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http://redmine.ruby-lang.org