1 files changed, 6 insertions, 5 deletions

diff --git a/ltests.c b/ltests.c
index d05fc3b1..71ad09ea 100644
--- a/ltests.c
+++ b/ltests.c
@@ -1,5 +1,5 @@
 /*
-** $Id: ltests.c,v 2.226 2017/11/01 18:20:48 roberto Exp roberto $
+** $Id: ltests.c,v 2.227 2017/11/02 11:28:56 roberto Exp roberto $
 ** Internal Module for Debugging of the Lua Implementation
 ** See Copyright Notice in lua.h
 */
@@ -310,7 +310,7 @@ static void checkLclosure (global_State *g, LClosure *cl) {
 
 
 static int lua_checkpc (CallInfo *ci) {
-  if (!isLua(ci)) return 1;
+  if (!isLua(ci->func)) return 1;
   else {
     StkId f = ci->func;
     Proto *p = clLvalue(s2v(f))->p;
@@ -327,10 +327,11 @@ static void checkstack (global_State *g, lua_State *L1) {
   lua_assert(!isdead(g, L1));
   for (uv = L1->openupval; uv != NULL; uv = uv->u.open.next)
     lua_assert(upisopen(uv));  /* must be open */
-  for (ci = L1->ci; ci != NULL; ci = ci->previous) {
-    lua_assert(ci->top <= L1->stack_last);
+  for (ci = L1->ci; ci != NULL; ci = ci->previous)
     lua_assert(lua_checkpc(ci));
-  }
+  for (o = L1->func; o->stkci.previous != 0; o -= o->stkci.previous)
+    lua_assert(functop(o) <= L1->stack_last);
+  lua_assert(o == L1->stack);
   if (L1->stack) {  /* complete thread? */
     for (o = L1->stack; o < L1->stack_last + EXTRA_STACK; o++)
       checkliveness(L1, s2v(o));  /* entire stack must have valid values */