From: "luke-gru (Luke Gruber) via ruby-core" <ruby-core@...>
Date: 2024-01-04T22:29:18+00:00
Subject: [ruby-core:116019] [Ruby master Bug#19411] GC issue with moved objects

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


This has been fixed in https://github.com/ruby/ruby/commit/32c4b0125f9afe11909d1c10e4133e20180e809e, please close. Thanks!

----------------------------------------
Bug #19411: GC issue with moved objects
https://bugs.ruby-lang.org/issues/19411#change-106009

* 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
----------------------------------------
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`?



-- 
https://bugs.ruby-lang.org/
 ______________________________________________
 ruby-core mailing list -- ruby-core@ml.ruby-lang.org
 To unsubscribe send an email to ruby-core-leave@ml.ruby-lang.org
 ruby-core info -- https://ml.ruby-lang.org/mailman3/postorius/lists/ruby-core.ml.ruby-lang.org/