1 files changed, 4 insertions, 2 deletions

diff --git a/src/lj_gc.h b/src/lj_gc.h
index 1725c639..6fc88cf9 100644
--- a/src/lj_gc.h
+++ b/src/lj_gc.h
@@ -81,8 +81,10 @@ LJ_FUNC void lj_gc_barriertrace(global_State *g, uint32_t traceno);
 static LJ_AINLINE void lj_gc_barrierback(global_State *g, GCtab *t)
 {
   GCobj *o = obj2gco(t);
-  lua_assert(isblack(o) && !isdead(g, o));
-  lua_assert(g->gc.state != GCSfinalize && g->gc.state != GCSpause);
+  lj_assertG(isblack(o) && !isdead(g, o),
+             "bad object states for backward barrier");
+  lj_assertG(g->gc.state != GCSfinalize && g->gc.state != GCSpause,
+             "bad GC state");
   black2gray(o);
   setgcrefr(t->gclist, g->gc.grayagain);
   setgcref(g->gc.grayagain, o);