From: kazuki@...
Date: 2014-10-18T11:46:47+00:00
Subject: [ruby-dev:48659] [ruby-trunk - Bug #10368] [Closed] GC mark miss on	bindings

Issue #10368 has been updated by Kazuki Tsujimoto.

Status changed from Assigned to Closed
% Done changed from 0 to 100

Applied in changeset r48000.

----------
* vm_core.h, vm.c, proc.c: fix GC mark miss on bindings.
  [ruby-dev:48616] [Bug #10368]

* test/ruby/test_eval.rb: add a test code.

----------------------------------------
Bug #10368: GC mark miss on bindings
https://bugs.ruby-lang.org/issues/10368#change-49516

* Author: Kazuki Tsujimoto
* Status: Closed
* Priority: Normal
* Assignee: Koichi Sasada
* Category: 
* Target version: 
* ruby -v: ruby 2.2.0dev (2014-10-11 trunk 47881) [x86_64-linux]
* Backport: 2.0.0: REQUIRED, 2.1: REQUIRED
----------------------------------------
以下のコードでSEGVすることがあります。
mに渡したブロックがGCされてしまうのが原因です。

~~~ruby
def m
  binding
end

GC.stress = true
b = nil
tap do 
  b = m {}
end
GC.start
0.times.to_a
b.eval('yield')
~~~

ブロックに対応するProcオブジェクトをrb_binding_tに持たせるようにするパッチを添付します。

---Files--------------------------------
0001-add-blockprocval-to-rb_block_t.patch (4.87 KB)
0002-use-rb_vm_make_binding-instead-of-rb_binding_new_with_cfp.patch (1.9 KB)


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