From 5c647754a687a910ef40a097fbf8f7415561c8aa Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Mon, 10 Nov 2025 18:11:26 +0100
Subject: Run VM events and finalizers in separate state.

Reported by Sergey Kaplun. #1403
---
 src/lj_obj.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/lj_obj.h')

diff --git a/src/lj_obj.h b/src/lj_obj.h
index 855727bf..73b186e2 100644
--- a/src/lj_obj.h
+++ b/src/lj_obj.h
@@ -647,6 +647,7 @@ typedef struct global_State {
   TValue tmptv, tmptv2;	/* Temporary TValues. */
   Node nilnode;		/* Fallback 1-element hash part (nil key and value). */
   TValue registrytv;	/* Anchor for registry. */
+  GCRef vmthref;	/* Link to VM thread. */
   GCupval uvhead;	/* Head of double-linked list of all open upvalues. */
   int32_t hookcount;	/* Instruction hook countdown. */
   int32_t hookcstart;	/* Start count for instruction hook counter. */
@@ -663,6 +664,7 @@ typedef struct global_State {
 } global_State;
 
 #define mainthread(g)	(&gcref(g->mainthref)->th)
+#define vmthread(g)	(&gcref(g->vmthref)->th)
 #define niltv(L) \
   check_exp(tvisnil(&G(L)->nilnode.val), &G(L)->nilnode.val)
 #define niltvg(g) \
-- 
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