From: ko1@...
Date: 2020-10-20T02:28:05+00:00
Subject: [ruby-core:100441] [Ruby master Feature#17270] ObjectSpace.each_object should be restricted on multi-Racotrs

Issue #17270 has been reported by ko1 (Koichi Sasada).

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Feature #17270: ObjectSpace.each_object should be restricted on multi-Racotrs
https://bugs.ruby-lang.org/issues/17270

* Author: ko1 (Koichi Sasada)
* Status: Open
* Priority: Normal
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Unshareable objects should not be touched from multiple ractors
so ObjectSpace.each_object should be restricted. On multi-ractor
mode, ObjectSpace.each_object only iterates shareable objects
even if running on the main ractor.

https://github.com/ruby/ruby/pull/3672




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