[PATCH 0/1] selftest/mm/hugetlb: SIGBUS on stolen page
From: Breno Leitao
Date: Fri Jan 05 2024 - 10:54:47 EST
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
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2.34.1