Need not to pop `callinfo` on `OP_STOP`.
MODIFY
src/vm.c
src/vm.c
@@ -2934,9 +2934,6 @@ RETRY_TRY_BLOCK:
CASE(OP_STOP) {
/* stop VM */
L_STOP:
- while (mrb->c->ci > mrb->c->cibase) {
- cipop(mrb);
- }
while (mrb->c->eidx > 0) {
ecall(mrb);
}

Need not to pop `callinfo` on `OP_STOP`.