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b=UW/pLckCxaNKin2wiipk5x1+dQXwPfHhssQ3QmeQq4QXVJQ3y5OXuHSa1pZlhFR1M qEnCL5rs4a6xAWe+FdiyNnqHfAeN90322g4aAl4VOzQKIdM4VfbTDb3ZqQWxdaqg4A oJoExQipZkyEKvzOi6uoLmLS/3GoH0scWeQjvj4vt2SCicfw60c5iB+snAR5g5dqyL 15WD6qT/QL8wFr1KIz3SuFnvVuZETuxZlx+ZqwRifMnssSuMamHfBs0P+F8URMkht/ XsF+v5W82wbBbBI/mVpEtgxVlUUFiGYbUzmKLm1zVGEgaeWqcp7sfv4Jo2oEIaTRyz WM6aXYuiqBIXA== Message-ID: <5724ac10-70bc-4259-a69c-1c0efaf28d02@kernel.org> Date: Mon, 16 Mar 2026 15:11:06 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 5/5] selftests/mm: transhuge_stress: skip the test when thp 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: <20260316044335.1390608-1-chuhu@redhat.com> <20260316044335.1390608-6-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-Queue-Id: B2C58C0012 X-Stat-Signature: aquhy9yb1fkujryjk9711hepm1pm1haa X-Rspam-User: X-Rspamd-Server: rspam05 X-HE-Tag: 1773670273-894743 X-HE-Meta: U2FsdGVkX19PPJ9glXKwRC8zFtvaWKpB/EGIa30cfAbcttb5VTILPTdEiLOfItQeSSlRc9/7FOvt3AcXii/bqoIZPUjAvp5J5chKlB2pL4j/3q55NdBnC5FbLPVNfKwklzoSqb6C1AyrRtN/4reXm5HAZIfoCCiGWShJAbRoN8ELawGOAnWVM4A5ivIOR3YZRbbhC7j7GwdAkQjt5lhRYeQ+LKuLpVT9FpkGZqZAyNy8QiusxEJA6CNOCODs8W+AkF0EEWNXpCYbAW0O3W3PFIJ4jMG8/RETCasYd7my1S6mroYmkvLOe5NldyWfISvT+FHBAyOtl3rvkxW5wqBpogSo8JGLtl3oCmYhrvFerNtBtEnCEq+m5mfaBR/5VWEartb1URGIiJ6+QGkQZ78B78XZfaQ9B3cMUxDFRUgvbAEQdPG1oM93d9isFu0h9g8ciuC7tMqz9dnGX8Vay+cJK5yvKJhwW3d9rzhc16PIqRUXPdfOKViD0s+6tYx2xH1mReyIqxoZSjrnPjqbUmhs2yKKU3iZv5SENuS/ZNXjoRfkaPUbaEpc6kZCtsTFmNJeQ7mZbS5APIk+z4hZJHWS9MWvSPlWi/d8RRgQJu8zlSP+qfLfyGH+0gRdcVn1Tee/p2FrYyAHgKL6Wy9TERSGMGzpRkLEtS1ZbrPnHapONp2qrWPBr00/REWgcqa0dXOv0Mwi0KzedffB/szkevc0v3qd47Uhv289tuqMrsczuiK5UlG54+RHMjqQY/Zh+7ll9ZYdzyXTVt/4Gi+oM+9MYRUOyDB5x4O00uFnvzMCeHgLX3a7LsbTrXGbO+r0zwjd3JbWTwCTIYGQ4lnBGocr3jGkDW83Tjj9ZWPi6+pdaWw+2QV7p75qybitBgLGuE8CvhvB8lV2tKKvmuLz6YAmZf5lzd2qoaHmwncfCFVY61uPr9ALYZZt4CIKn2OBNY7DrBLQs8YZh8OqfLNhtkU qQPR59rZ tzjon6dfbZaJQZOKtHuvHmChPDwg8eWVmo2aWCW2R3Bfc9GD5+Yd3cXOtrHVrISjlOHOQ38L9h6NZ+MYDr8fHOjyzwneqKiAUwAbcr5nlURBG27Cijrqu7p5Z5zBvSmkMtRe3LjeqWZdQQFUyEa2idGus6N8oCnBik06bY3mKjrv5PgrIM0nGiEcehv8AAcdbj9dAgDzfRS6IiYGuLWdVhWOiLoU+HN3LBpZwFGbBMASZBOEPQmSjqh8fdUBZWRGowvrA3l4iVSkEYnePYa2pGMyInGJdNBWQaCphmdaR8PS1p+cz9pzVQ7czpUhpz+v45ik7WOwd5JWdoDiBOJusNrL4wi2KIXOu8HNn/OQgn+hjduUHUzEtJMANEHQlSeIE3cLE Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 3/16/26 05:43, Chunyu Hu wrote: > The test requires thp, skip the test when thp is not available to avoid > false positive. > > Tested with thp disabled kernel. > Before the fix: > # -------------------------------- > # running ./transhuge-stress -d 20 > # -------------------------------- > # TAP version 13 > # 1..1 > # transhuge-stress: allocate 1453 transhuge pages, using 2907 MiB virtual memory and 11 MiB of ram > # Bail out! MADV_HUGEPAGE# Planned tests != run tests (1 != 0) > # # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:0 error:0 > # [FAIL] > not ok 60 transhuge-stress -d 20 # exit=1 > > After the fix: > # -------------------------------- > # running ./transhuge-stress -d 20 > # -------------------------------- > # TAP version 13 > # 1..0 # SKIP Transparent Hugepages not available > # [SKIP] > ok 5 transhuge-stress -d 20 # SKIP > > Reviewed-by: Lorenzo Stoakes (Oracle) > Reviewed-by: Zi Yan > CC: Li Wang > Signed-off-by: Chunyu Hu > --- Acked-by: David Hildenbrand (Arm) -- Cheers, David