diff options
| author | Breno Leitao <leitao@debian.org> | 2023-10-05 09:39:22 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-10-18 14:34:16 -0700 |
| commit | 116d57303a051bb2c7939a5026e441d8a7845db2 (patch) | |
| tree | 3f4d8b02cc4de46b6b6b63b21e1b53512aaef520 /tools/testing/selftests/mm/Makefile | |
| parent | c8b90731427814b1e265c3c2bc01c38406963c32 (diff) | |
selftests/mm: add a new test for madv and hugetlb
Create a selftest that exercises the race between page faults and
madvise(MADV_DONTNEED) in the same huge page. Do it by running two
threads that touches the huge page and madvise(MADV_DONTNEED) at the same
time.
In case of a SIGBUS coming at pagefault, the test should fail, since we
hit the bug.
The test doesn't have a signal handler, and if it fails, it fails like
the following
----------------------------------
running ./hugetlb_fault_after_madv
----------------------------------
./run_vmtests.sh: line 186: 595563 Bus error (core dumped) "$@"
[FAIL]
This selftest goes together with the fix of the bug[1] itself.
[1] https://lore.kernel.org/all/20231001005659.2185316-1-riel@surriel.com/#r
Link: https://lkml.kernel.org/r/20231005163922.87568-3-leitao@debian.org
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Rik van Riel <riel@surriel.com>
Tested-by: Rik van Riel <riel@surriel.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Muchun Song <muchun.song@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/testing/selftests/mm/Makefile')
| -rw-r--r-- | tools/testing/selftests/mm/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/mm/Makefile b/tools/testing/selftests/mm/Makefile index 2a89989afafc..78dfec8bc676 100644 --- a/tools/testing/selftests/mm/Makefile +++ b/tools/testing/selftests/mm/Makefile @@ -69,6 +69,7 @@ TEST_GEN_FILES += split_huge_page_test TEST_GEN_FILES += ksm_tests TEST_GEN_FILES += ksm_functional_tests TEST_GEN_FILES += mdwe_test +TEST_GEN_FILES += hugetlb_fault_after_madv ifneq ($(ARCH),arm64) TEST_GEN_PROGS += soft-dirty |