Issue #6429 has been reported by luislavena (Luis Lavena). ---------------------------------------- Backport #6429: Backport r35631 - [mingw] Errno::EBADF in ruby/test_io.rb on ruby_1_9_3 https://bugs.ruby-lang.org/issues/6429 Author: luislavena (Luis Lavena) Status: Assigned Priority: Normal Assignee: yugui (Yuki Sonoda) Category: Target version: Please backport r35631 to ruby_1_9_3 branch. It contains a fix for TestIO which solves misleading errors due GC'ed file descriptors. Find attached a patch with the changes. Thank you. -- http://bugs.ruby-lang.org/