[ruby-core:112211] [Ruby master Bug#19411] GC issue with moved objects

3 Feb 2023

      Issue #19411 has been reported by luke-gru (Luke Gruber).

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Bug #19411: GC issue with moved objects
https://bugs.ruby-lang.org/issues/19411

* Author: luke-gru (Luke Gruber)
* Status: Open
* Priority: Normal
* ruby -v: 3.2.0
* Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN
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This crashes:

```ruby
class Obj
  def initialize
    @obj = 3
  end
end

GC.stress = true
r = Ractor.new do
  obj = receive
  p obj
end
obj = Obj.new
r.send(obj, move: true)
r.take
```

It only crashes with nested objects, if you remove the ivar set in `initialize` it works fine. Maybe missing `RB_GC_GUARD`?

-- 
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