1 files changed, 7 insertions, 0 deletions

diff --git a/src/lj_gc.c b/src/lj_gc.c
index bc10822f..572e4710 100644
--- a/src/lj_gc.c
+++ b/src/lj_gc.c
@@ -493,6 +493,7 @@ static void gc_finalize(lua_State *L)
     setcdataV(L, &tmp, gco2cd(o));
     tv = lj_tab_set(L, ctype_ctsG(g)->finalizer, &tmp);
     if (!tvisnil(tv)) {
+      g->gc.nocdatafin = 0;
       copyTV(L, &tmp, tv);
       setnilV(tv);  /* Clear entry in finalizer table. */
       gc_call_finalizer(g, L, &tmp, o);
@@ -629,6 +630,9 @@ static size_t gc_onestep(lua_State *L)
         lj_str_resize(L, g->strmask >> 1);  /* Shrink string table. */
       if (gcref(g->gc.mmudata)) {  /* Need any finalizations? */
         g->gc.state = GCSfinalize;
+#if LJ_HASFFI
+        g->gc.nocdatafin = 1;
+#endif
       } else {  /* Otherwise skip this phase to help the JIT. */
         g->gc.state = GCSpause;  /* End of GC cycle. */
         g->gc.debt = 0;
@@ -647,6 +651,9 @@ static size_t gc_onestep(lua_State *L)
         g->gc.estimate -= GCFINALIZECOST;
       return GCFINALIZECOST;
     }
+#if LJ_HASFFI
+    if (!g->gc.nocdatafin) lj_tab_rehash(L, ctype_ctsG(g)->finalizer);
+#endif
     g->gc.state = GCSpause;  /* End of GC cycle. */
     g->gc.debt = 0;
     return 0;