The code just clean the first member of array 'finsh_vm_stack', but it works well in the past years,
memset(&finsh_vm_stack[0], 0, sizeof(finsh_vm_stack[0]));
Is it better to re-code as below, it will be more readable and robust:
memset(&finsh_vm_stack[0], 0, sizeof(finsh_vm_stack));