[ruby-core:121929] [Ruby Bug#19387] Issue with ObjectSpace.each_objects not returning objects after starting a ractor

Issue #19387 has been updated by osyoyu (Daisuke Aritomo).


I also ran into this, so I opened an pull request document this behavior.
https://github.com/ruby/ruby/pull/13278

----------------------------------------
Bug #19387: Issue with ObjectSpace.each_objects not returning objects after starting a ractor
https://bugs.ruby-lang.org/issues/19387#change-113039

* Author: luke-gru (Luke Gruber)
* Status: Assigned
* Assignee: ractor
* ruby -v: 3.3.0
* Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN
----------------------------------------
```ruby
r = Ractor.new do
  receive # block, the problem is not the termination of the ractor but the starting
end

ObjectSpace.each_object(IO) { |io|
  p io # we get no objects
}
```





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