From e8dca6b0346ad087adda19a8656679bbdb23e6e7 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Tue, 18 Apr 2017 16:45:52 +0900
Subject: Revert 6dd1a57; fix #3612; ref #3550

The fix was wrong. It causes a new problem #3612.
---
 src/gc.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src')

diff --git a/src/gc.c b/src/gc.c
index fe394969a..15b92e638 100644
--- a/src/gc.c
+++ b/src/gc.c
@@ -646,6 +646,7 @@ gc_mark_children(mrb_state *mrb, mrb_gc *gc, struct RBasic *obj)
       struct REnv *e = (struct REnv*)obj;
       mrb_int i, len;
 
+      if (MRB_ENV_STACK_SHARED_P(e)) break;
       len = MRB_ENV_STACK_LEN(e);
       for (i=0; i<len; i++) {
         mrb_gc_mark_value(mrb, e->stack[i]);
-- 
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