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b=u1EHAFsp9jlP2J2cwUKw8HzJN07gL/SrtcH4P4ScAdVPoK3NKpmev9F1XykTIgAOw FvMBt/kSQgiNysyDgoNWApuF1zHEqvzk7B1H73sbpJbSFrjSAyBK+FGVD1jgfBiya0 veXnsLgv7Q3o0uGoOwKv0+jveNvUsf+/MtDmmyszyBdKFvLx4mUsH9oBWGthwjlIw/ TxN07vLkVnVgvTKlUGlBkcbQHJk1hIrWmbO0u8dDuTnwsc3LadUJ9YuG5prA9ca1kM L/4IM9vXIATWNgSDjOnNaaFNmtV4HfdE3/4gRZojDX6qZqheX9SgM84Yl/GtNqnpmr ya8fMRR8FVwZQ== Date: Mon, 16 Mar 2026 08:29:16 +0200 From: Mike Rapoport To: Chunyu Hu Cc: akpm@linux-foundation.org, david@kernel.org, shuah@kernel.org, linux-mm@kvack.org, ljs@kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, 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 Subject: Re: [PATCH v2 4/5] selftests/mm: split_huge_page_test: skip the test when thp is not available Message-ID: References: <20260316044335.1390608-1-chuhu@redhat.com> <20260316044335.1390608-5-chuhu@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260316044335.1390608-5-chuhu@redhat.com> X-Rspamd-Queue-Id: B451B1C0008 X-Stat-Signature: 5j3n4xqkfbho1xz5zbejsrpny9jsrhxp X-Rspam-User: X-Rspamd-Server: rspam05 X-HE-Tag: 1773642567-399347 X-HE-Meta: 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 pFL8T9WY t6M6oL5kDQyOGwRcmVVA0lAUsBQdnLnc1BT1hhzxwOyhCgkiblhbAVLFMaK7CDgzMsO6So8YmzYKgqdq+QUG4Pdi4m+xhbtxEVDyEvNqPw5JvUtelevXzgzHyCsyOUO3ganIxg8sojmykfWCsoXK822iByMj7CEBQeyWXVSU7SyG8cPf/RSMKrGc9NOWzT1CD5RVcVnO39Pfodp93kDbqsh/dHp4oAY/G31IpWLmP+KMMkQhEpq0zcrjOLNFAjkjcY+Ai0CsnlAL+RZt3HPNRrlkSoFVJSyJtP/lMSUwkgn9z0s9uOL6cNwEdahZJ/8AzPHKW2wkQlU6WBbPtOvSO3xey5q0wVTJoAWXD3wIi9xRMVpEwRPrlyALiQA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Mar 16, 2026 at 12:43:34PM +0800, Chunyu Hu wrote: > When thp is not enabled on some kernel config such as realtime kernel, the > test will report failure. Fix the false positive by skipping the test > directly when thp is not enabled. > > Tested with thp disabled kernel: > Before The fix: > # -------------------------------------------------- > # running ./split_huge_page_test /tmp/xfs_dir_Ywup9p > # -------------------------------------------------- > # TAP version 13 > # Bail out! Reading PMD pagesize failed > # # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:0 error:0 > # [FAIL] > not ok 61 split_huge_page_test /tmp/xfs_dir_Ywup9p # exit=1 > > After the fix: > # -------------------------------------------------- > # running ./split_huge_page_test /tmp/xfs_dir_YHPUPl > # -------------------------------------------------- > # TAP version 13 > # 1..0 # SKIP Transparent Hugepages not available > # [SKIP] > ok 6 split_huge_page_test /tmp/xfs_dir_YHPUPl # SKIP > > Reviewed-by: Lorenzo Stoakes (Oracle) > Reviewed-by: Zi Yan > CC: Li Wang > Signed-off-by: Chunyu Hu Reviewed-by: Mike Rapoport (Microsoft) -- Sincerely yours, Mike.