From 0a1f15e57c061d4caee8dfff2366886bff4ed513 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Mon, 3 Apr 2017 18:01:43 +0900
Subject: Insert ` mrb_field_write_barrier()` for GC; fix #3534

---
 src/proc.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src')

diff --git a/src/proc.c b/src/proc.c
index a75774667..ab22bc1fa 100644
--- a/src/proc.c
+++ b/src/proc.c
@@ -61,6 +61,7 @@ closure_setup(mrb_state *mrb, struct RProc *p, int nlocals)
     e = mrb->c->ci->env;
   }
   p->env = e;
+  mrb_field_write_barrier(mrb, (struct RBasic *)p, (struct RBasic *)p->env);
 }
 
 struct RProc *
-- 
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