[ruby-core:122213] [Ruby Bug#21354] Symbol#to_proc is not ractor safe

Issue #21354 has been updated by byroot (Jean Boussier).

Assignee changed from ko1 (Koichi Sasada) to ractor

----------------------------------------
Bug #21354: Symbol#to_proc is not ractor safe
https://bugs.ruby-lang.org/issues/21354#change-113362

* Author: luke-gru (Luke Gruber)
* Status: Closed
* Assignee: ractor
* Backport: 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED
----------------------------------------
There is caching in `Symbol#to_proc` (`rb_sym_to_proc`) that makes the assumption that we're always in the main ractor. With multiple ractors, this caching logic is not ractor-safe in that cached procs created in one ractor can leak into other ractors. In a debug build, this results in a `ractor_confirm_belonging` assertion failure.

Ruby code that reproduces the issue:

```ruby
  :inspect.to_proc
  Ractor.new do
    :inspect.to_proc
  end.take
```



-- 
https://bugs.ruby-lang.org/
 ______________________________________________
 ruby-core mailing list -- [e-mail]
 To unsubscribe send an email to [e-mail]
 ruby-core info -- https://ml.ruby-lang.org/mailman3/lists/ruby-core.ml.ruby-lang.org/