Issue #3140 has been updated by Run Paint Run Run.
I _think_ this caused some oddness. After building trunk, `irb` hung on load, seemingly looping indefinitely. The problem was my ~/.irbrc required a gem which `irb` could no longer find. I've yet to establish the reason for its amnesia, however, I am able to reproduce the hang by requiring a non-existent gem on startup:
run@paint:/var/repos/mir/ruby вк ./ruby -d -W2 -v -rerrant -e 'p 1'
ruby 1.9.3dev (2010-06-08 trunk 28202) [i686-linux]
Exception `LoadError' at <internal:lib/rubygems/custom_require>:29 - cannot load such file -- errant
Exception `LoadError' at <internal:lib/rubygems/custom_require>:29 - cannot load such file -- errant
The first exception is printed immediately. The second, 30 seconds or so later. Then the process just hangs indefinitely.
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http://redmine.ruby-lang.org/issues/show/3140
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