Issue #18232 has been updated by tenderlovemaking (Aaron Patterson).

File 0001-Dump-outer-variables-tables-when-dumping-an-iseq-to-.patch added

I've attached a patch that fixes this (for me) along with a test.  I had to change the information that we dump when dumping an ISeq, so maybe we need to change the binary format version number or something?  I'm not sure.  Anyway there is also a PR [here](https://github.com/ruby/ruby/pull/4942)

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Bug #18232: Ractor.make_shareable is broken in code loaded with RubyVM::InstructionSequence.load_from_binary
https://bugs.ruby-lang.org/issues/18232#change-94052

* Author: byroot (Jean Boussier)
* Status: Open
* Priority: Normal
* ruby -v: ruby 3.0.2p107, ruby 3.1.0dev
* Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN
----------------------------------------
This was first reported as a Bootsnap bug: https://github.com/Shopify/bootsnap/issues/376

But I reduced it to:

```ruby
source = <<~RUBY
  x = :foo
  pr = Proc.new { p x }
  Ractor.make_shareable(pr)
  pr.call
RUBY
RubyVM::InstructionSequence.compile(source).eval # :foo
RubyVM::InstructionSequence.load_from_binary(RubyVM::InstructionSequence.compile(source).to_binary).eval # false
```

The bug is present on both 3.0.2 and 3.1.0-dev. I have no idea what might cause this.

---Files--------------------------------
0001-Dump-outer-variables-tables-when-dumping-an-iseq-to-.patch (5.55 KB)


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