From: "nobu (Nobuyoshi Nakada)" <noreply@...>
Date: 2022-11-20T15:40:27+00:00
Subject: [ruby-core:110827] [Ruby master Bug#4992] finalizer中のThread.newでSEGV

Issue #4992 has been updated by nobu (Nobuyoshi Nakada).


`Thread.new` is prohibited but not `Thread.start`.

```
$ ruby -v --disable=gems -d -e 'class E<StandardError;def detailed_message(...) Thread.start{"<#{super}>"}.value; end; end' -e 'raise E'
ruby 3.2.0dev (2022-11-13T14:54:43Z master 2f7d2662dd) [x86_64-darwin21]
Exception `E' at -e:2 - E
-e:2:in `<main>': <E (E)>
bash: exit 1
```

----------------------------------------
Bug #4992: finalizer������Thread.new���SEGV
https://bugs.ruby-lang.org/issues/4992#change-100184

* Author: sorah (Sorah Fukumori)
* Status: Closed
* Priority: Normal
* Assignee: ko1 (Koichi Sasada)
* Target version: 1.9.3
* ruby -v: -
----------------------------------------
���������������������������������������������SEGV������������

$ ruby -e'ObjectSpace.define_finalizer(""){Thread.new{}}'  
$ ruby -e'ObjectSpace.define_finalizer(""){Thread.new{}}'
SEGV received in SEGV handler
$ ruby -e'ObjectSpace.define_finalizer(""){2.times{Thread.new{}}}'
SEGV received in SEGV handler
$ ruby -e'ObjectSpace.define_finalizer(""){2.times{Thread.new{}}}'
SEGV received in SEGV handler


2.times���������������������������������������������2������1������������������������������������������



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