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b=sIf3SM/cSF4Eys53CHFttBllrEsLPwddPTKvDcu9JiLouK0OX0hZ4RkiuQZJLDkL3 M54xIf5vSAfgWLRiUZYF0lShQvx7EdsznNcJzOGYJ8eN4EVmZK0JIxPSmeY/llVcxG T2y5h0U83ZqdtAfZ/w9Uj8UwjmYZ8KL+TuREIABbtAOIuGabIPBZlMfpFrDJ7RKXO6 lKQsD1faOACUQshUGZ5r1H9tGi9Gbjb9Gkp+e/D2c3Nn8aKh++FK91r4WsrrmyvuBJ /y4VnNqfFDUb7NWvhu9ChkLkZlfFFufi/0uzsRjtQ3mpKjPL9Rocmtx5VZWtsX52xd yLsZfZ4bNaHdg== Message-ID: <17254a02-8155-4857-92de-51b9724d4f5e@kernel.org> Date: Thu, 12 Mar 2026 20:43:09 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RESEND PATCH 2/4] selftests/mm: soft-dirty: skip two tests when thp is not available To: Chunyu Hu , akpm@linux-foundation.org, shuah@kernel.org, linux-mm@kvack.org, ljs@kernel.org Cc: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, mhocko@suse.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com, baohua@kernel.org, lance.yang@linux.dev, Li Wang References: <20260312114027.634559-1-chuhu@redhat.com> <20260312114027.634559-3-chuhu@redhat.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 1E4651C000C X-Stat-Signature: j53pr7rtfh7y3tcmrp4s7dr5e36e5385 X-Rspam-User: X-HE-Tag: 1773344598-684543 X-HE-Meta: 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 TaPWlmUI AxfJkoHXrwcHvrccPxcLkwj+kJRyy6QmhNGkY5Udj8FGci60sFTa0wlWGj4IJkof87AciX/3YBIcifk0UTQiZPJeYtZDobohEpCQ+UeFwCx+jZ3w6OfRjqj7xQiAcuNUMLLMTfUhA6XqECaHCgfNU6ggJdv99e3tBjbDe/lxI1zggoHwE5DAJSr9UxCUQKoMgqkX42RKnVb/436P3R4D2oHJN6kWiAmZmFU2gi5gb0xTLib+m1qp3vDQn9U1J34n2riZ1e8jsi8uJ5lMh1W4FwwS+o50etC+mVnlAAVD+KF9Db/L2nom3/Qb+cg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 3/12/26 12:40, Chunyu Hu wrote: > The test_hugepage test contain two sub tests. If just reporting one skip > when thp not available, there will be error in the log because the test > count don't match the test plan. Change to skip two tests by running the > ksft_test_result_skip twice in this case. > > Without the fix (run test on thp disabled kernel): > ./run_vmtests.sh -t soft_dirty > # -------------------- > # running ./soft-dirty > # -------------------- > # TAP version 13 > # 1..19 > # ok 1 Test test_simple > # ok 2 Test test_vma_reuse dirty bit of allocated page > # ok 3 Test test_vma_reuse dirty bit of reused address page > # ok 4 # SKIP Transparent Hugepages not available > # ok 5 Test test_mprotect-anon dirty bit of new written page > # ok 6 Test test_mprotect-anon soft-dirty clear after clear_refs > # ok 7 Test test_mprotect-anon soft-dirty clear after marking RO > # ok 8 Test test_mprotect-anon soft-dirty clear after marking RW > # ok 9 Test test_mprotect-anon soft-dirty after rewritten > # ok 10 Test test_mprotect-file dirty bit of new written page > # ok 11 Test test_mprotect-file soft-dirty clear after clear_refs > # ok 12 Test test_mprotect-file soft-dirty clear after marking RO > # ok 13 Test test_mprotect-file soft-dirty clear after marking RW > # ok 14 Test test_mprotect-file soft-dirty after rewritten > # ok 15 Test test_merge-anon soft-dirty after remap merge 1st pg > # ok 16 Test test_merge-anon soft-dirty after remap merge 2nd pg > # ok 17 Test test_merge-anon soft-dirty after mprotect merge 1st pg > # ok 18 Test test_merge-anon soft-dirty after mprotect merge 2nd pg > # # 1 skipped test(s) detected. Consider enabling relevant config options to improve coverage. > # # Planned tests != run tests (19 != 18) > # # Totals: pass:17 fail:0 xfail:0 xpass:0 skip:1 error:0 > # [FAIL] > not ok 52 soft-dirty # exit=1 > > With the fix (run test on thp disabled kernel): > ./run_vmtests.sh -t soft_dirty > # -------------------- > # running ./soft-dirty > # TAP version 13 > # -------------------- > # running ./soft-dirty > # -------------------- > # TAP version 13 > # 1..19 > # ok 1 Test test_simple > # ok 2 Test test_vma_reuse dirty bit of allocated page > # ok 3 Test test_vma_reuse dirty bit of reused address page > # # Transparent Hugepages not available > # ok 4 # SKIP Test test_hugepage huge page allocation > # ok 5 # SKIP Test test_hugepage huge page dirty bit > # ok 6 Test test_mprotect-anon dirty bit of new written page > # ok 7 Test test_mprotect-anon soft-dirty clear after clear_refs > # ok 8 Test test_mprotect-anon soft-dirty clear after marking RO > # ok 9 Test test_mprotect-anon soft-dirty clear after marking RW > # ok 10 Test test_mprotect-anon soft-dirty after rewritten > # ok 11 Test test_mprotect-file dirty bit of new written page > # ok 12 Test test_mprotect-file soft-dirty clear after clear_refs > # ok 13 Test test_mprotect-file soft-dirty clear after marking RO > # ok 14 Test test_mprotect-file soft-dirty clear after marking RW > # ok 15 Test test_mprotect-file soft-dirty after rewritten > # ok 16 Test test_merge-anon soft-dirty after remap merge 1st pg > # ok 17 Test test_merge-anon soft-dirty after remap merge 2nd pg > # ok 18 Test test_merge-anon soft-dirty after mprotect merge 1st pg > # ok 19 Test test_merge-anon soft-dirty after mprotect merge 2nd pg > # # 2 skipped test(s) detected. Consider enabling relevant config options to improve coverage. > # # Totals: pass:17 fail:0 xfail:0 xpass:0 skip:2 error:0 > # [PASS] > ok 1 soft-dirty > hwpoison_inject > # SUMMARY: PASS=1 SKIP=0 FAIL=0 > 1..1 > CC: Li Wang > Signed-off-by: Chunyu Hu > --- Acked-by: David Hildenbrand (Arm) -- Cheers, David