The whole point of using regions is not to be worrying about pointer lifetimes. And you don&#x27;t need Valgrind when you have regions since you aren&#x27;t going to leak memory by forgetting to free something. Valgrind solves a problem that doesn&#x27;t exist when you use regions.<p>If you&#x27;re really worried that you&#x27;ll leak an entire region worth of data just allocate the region with malloc instead of mmap and <i>then</i> use Valgrind to tell you what regions you aren&#x27;t destroying.