Re: [PATCH v2 6/9] selftests/mm: Print some details when uffd-stress gets bad params

On Fri, 21 Feb 2025 at 19:26, Brendan Jackman jackmanb@google.com wrote:

    nr_pages_per_cpu = bytes / page_size / nr_threads;
    if (!nr_pages_per_cpu) {

•           _err("invalid MiB");
  

•           _err("pages_per_cpu = 0, cannot test (%lu / %lu / %lu)",
  

•                   nr_pages_per_cpu, bytes, page_size, nr_threads);
  

Ugh, this is garbage, wrong number of args for the format string.

I think I originally had %d instead of 0, then changed and didn't notice I broke it because it doesn't actually cause the overall kselftests build to fail. I'll need to find a way to update my scripts to detect that.