[PATCH 0/1] selftest/mm/hugetlb: SIGBUS on stolen page

This test case triggers a race between madvise(MADV_DONTNEED) and mmap() in a single huge page, which got stolen (while reserved).

Once the only page is stolen, the memory previously mmaped (and madvise(MADV_DONTNEED) got a SIGBUS when accessed.

I am not adding this test to the un_vmtests.sh scripts, since this test fails at upstream.

Breno Leitao (1): selftests/mm: add a new test for madv and hugetlb mmap

tools/testing/selftests/mm/.gitignore | 1 + tools/testing/selftests/mm/Makefile | 1 + .../selftests/mm/hugetlb_madv_vs_map.c | 124 ++++++++++++++++++ 3 files changed, 126 insertions(+) create mode 100644 tools/testing/selftests/mm/hugetlb_madv_vs_map.c