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b=KrAO+LMXLmFNA8i12ZwNrpk7GdRAUsDf+a4vK3fq4p42YlFyHT/saU0gROlAzEKZE DnmJq0GG+T+nCaApEM7GEx42dCUaniKigKA31VydRZDVqJIrTzNwa8f92MuB0fhzqW du0TclxXK/qCbTgLDG9cUoUBQSYyZNHWtvVfOOutDP8UAtIqQX2bbNhWGEH1hiljIW 3bKcxWK8wHsYTKsgbmOBPMcK7kE1bw79Av0ZmI+Z5kaugNNbJVar+5/f26oHY7BdMI msTWuTlOldO+Wi11E0O9yu/c9+AEp+1iEDrO60RLPr/LpRyDIgC4jHw0HSu/aaKFs4 QBe2R/bLqAiig== Date: Mon, 16 Mar 2026 08:30:07 +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 5/5] selftests/mm: transhuge_stress: skip the test when thp not available Message-ID: References: <20260316044335.1390608-1-chuhu@redhat.com> <20260316044335.1390608-6-chuhu@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260316044335.1390608-6-chuhu@redhat.com> X-Rspam-User: X-Rspamd-Queue-Id: 39C428000E X-Rspamd-Server: rspam08 X-Stat-Signature: 5gc68gcma3eg7waxdwh6n1cx81byce9g X-HE-Tag: 1773642618-908446 X-HE-Meta: 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 VcjYbtGu /0HK4GGi1LjLMqwI10rME0DWycepTB3rrPkE+rZtxhy3WWPNutQASKTHaQXLXbOkns7mM5nr91xu+x3HsjnauTWOib1lb+d4+n6ltAwUa/vdeV9tYNi3hKcIOQsF1s/vN7zGnzfMwwpoRNwe81/JsQ7MQR/P8g3ZWahJKII+0+xrXs3pGovh/5zYtRqSAPk8dzEuUvHLQpc2jo9AA+qimmiP9+OursUkUkp5Tee7yoQITtvDIPv2Sh0vyfEP4iGyR1/FjRK9rTGWnw02Y8bIP0iEHqxOtBkAlNCEFHI4dHqPKcqJsE3cZGcAe1JKL0ze9fD8+Nt3i7+oaXMD9zVoj04aYeGs9QtgYw3qpu8GOqYVVErLXf5zsHoL55w== 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 12:43:35PM +0800, 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 Reviewed-by: Mike Rapoport (Microsoft) -- Sincerely yours, Mike.