Re: [PATCH v3 7/8] selftests/mm: refactor uffd_poll_thread to allow custom fault handlers

On Thu, Jul 06, 2023 at 03:50:35PM -0700, Axel Rasmussen wrote:

@@ -247,9 +245,13 @@ static int userfaultfd_stress(void) { void *area; unsigned long nr;

• struct uffd_args args[nr_cpus];

• struct uffd_args *args; uint64_t mem_size = nr_pages * page_size;

• args = calloc(nr_cpus, sizeof(struct uffd_args));
• if (!args)

• err("allocating args array failed");
  

This is trivial, but I think I requested a "free" (or keep it allocate on stack) in previous version but it didn't get a response on why we cannot and it kept going.. could you help explain?