On Fri, 10 Jul 2026 17:24:27 +0800 Muchun Song <[email protected]> wrote:
> The hugetlb vmemmap selftest was added to check the old HVO > layout where tail vmemmap pages reused the head page. That > assumption no longer matches the current HVO mapping layout. > > HVO now keeps a private backing page for the head vmemmap page > and remaps redundant tail vmemmap pages to a shared read-only > backing page. The old page flag check is therefore testing an > obsolete implementation detail rather than the current ABI or > behavior. > > Remove the stale test and its build, run, and ignore entries. > > ... > > --- a/tools/testing/selftests/mm/.gitignore > +++ b/tools/testing/selftests/mm/.gitignore > @@ -3,11 +3,9 @@ cow > hugepage-mmap > hugepage-mremap > hugepage-shm > -hugepage-vmemmap > hugetlb-mmap > hugetlb-mremap > hugetlb-shm > -hugetlb-vmemmap > hugetlb-madvise > hugetlb-read-hwpoison > hugetlb-soft-offline We should leave these .gitignore entries in place. Please see https://lore.kernel.org/CAHk-=wihk5_obuduinaaevmn9f-ore+qbqbrefazaw-rbge...@mail.gmail.com I'll queue a -fix for this.
