[ruby-core:120839] [Ruby master Bug#21021] "try to mark T_NONE object" with 3.4.1

["Benoit_Tigeot (Benoit Tigeot) via ruby-core" <ruby-core@ml.ruby-lang.org>]

Issue #21021 has been updated by Benoit_Tigeot (Benoit Tigeot).


Benoit_Tigeot (Benoit Tigeot) wrote in #note-28:
> I will post an update tomorrow UTC, with more runs of the code impacted.

I can confirm that Alan's patch is fixing our issue. No crash on our side even with some concurrency in the application code.

----------------------------------------
Bug #21021: "try to mark T_NONE object" with 3.4.1
https://bugs.ruby-lang.org/issues/21021#change-111705

* Author: Benoit_Tigeot (Benoit Tigeot)
* Status: Closed
* ruby -v: ruby 3.4.1 (2024-12-25 revision 48d4efcb85) +YJIT +PRISM [x86_64-linux]                                                                                                                                  │
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: REQUIRED
----------------------------------------
Hello

We upgraded to 3.4.1 yesterday but we are seeing crash since then.

```
/bundle/ruby/3.4.0/gems/activejob-7.2.2.1/lib/active_job/enqueuing.rb:93: [BUG] try to mark T_NONE object
```

I saw the other issue related to ffi gem https://bugs.ruby-lang.org/issues/20694

But in our case the `C level backtrace information` looks different.

https://gist.github.com/benoittgt/13507c2000281aa7740bc782adab68c5


We migrated this part of the code to parallel->concurrent-ruby and we do not see the error yet again but I am a little bit worried we could see the issue again. 



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