[ruby-dev:27911] の GC を常に動かすパッチを当てて、rinda を
テストすると、次のように DRb 中の _id2ref でエラーが出ます。
このことは、DRb が (pure Ruby なくせに) GC にまつわる問題を持っ
ていることを意味するように思います。

% RUBY_ALWAYS_GC= ./ruby test/runner.rb test/rinda
Loaded suite rinda
Started
..........E..........
Finished in 6186.941043 seconds.

  1) Error:
test_remote_array_and_hash(Rinda::TupleSpaceProxyTest):
RangeError: 0xdbeb84a2 is not id value
    /tmp/d/lib/ruby/1.9/drb/drb.rb:375:in `_id2ref'
    /tmp/d/lib/ruby/1.9/drb/drb.rb:375:in `to_obj'
    /tmp/d/lib/ruby/1.9/drb/drb.rb:1399:in `to_obj'
    /tmp/d/lib/ruby/1.9/drb/drb.rb:1701:in `to_obj'
    /tmp/d/lib/ruby/1.9/drb/drb.rb:1076:in `method_missing'
    /tmp/d/lib/ruby/1.9/drb/drb.rb:1069:in `respond_to?'
    /tmp/d/lib/ruby/1.9/rinda/rinda.rb:101:in `hash?'
    /tmp/d/lib/ruby/1.9/rinda/rinda.rb:52:in `initialize'
    /tmp/d/lib/ruby/1.9/rinda/tuplespace.rb:131:in `make_tuple'
    /tmp/d/lib/ruby/1.9/rinda/tuplespace.rb:28:in `initialize'
    /tmp/d/lib/ruby/1.9/rinda/tuplespace.rb:406:in `write'
    /tmp/d/lib/ruby/1.9/rinda/rinda.rb:221:in `write'
    /tmp/d/ruby/test/rinda/test_rinda.rb:514:in `test_remote_array_and_hash'

21 tests, 276 assertions, 0 failures, 1 errors
-- 
[田中 哲][たなか あきら][Tanaka Akira]