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Thu, 2 Apr 2026 01:46:50 +0000 (UTC) Received: from dell-per7425-02.rhts.eng.pek2.redhat.com (dell-per7425-02.rhts.eng.pek2.redhat.com [10.73.116.18]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id DE9F519560AB; Thu, 2 Apr 2026 01:46:41 +0000 (UTC) From: Chunyu Hu To: akpm@linux-foundation.org, david@kernel.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, chuhu@redhat.com, Li Wang Subject: [PATCH v8 6/6] selftests/mm: transhuge_stress: skip the test when thp not available Date: Thu, 2 Apr 2026 09:45:43 +0800 Message-ID: <20260402014543.1671131-7-chuhu@redhat.com> In-Reply-To: <20260402014543.1671131-1-chuhu@redhat.com> References: <20260402014543.1671131-1-chuhu@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 X-Mimecast-MFC-PROC-ID: ci-0veJZ19E4DouwGYJKFc2qIK-z7gZxAByFjlRNkjs_1775094410 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Rspamd-Queue-Id: B73BBC0007 X-Stat-Signature: t967wo7yjopxyxnmhctd37ywdab9j1x8 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1775094418-882543 X-HE-Meta: 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 gyuXP6GV kwRPzszI2+maqDpf2X0aNKk/ENmke4fRUrsYHHUwPiB1Pyq9sodbk8ykTZsSPh5/YaBmcv4LzCJLMbgIMqxB9UCE2O9gsOU0SJP9dNIZcwTv6ioMvRSc3RI9uc+adBs+dqYfJ3PRlN3glGGGczJOigkjw3ohst7ZqpjjVY3jLY2PaYcT5f2lAXoCKa0Tw0Ec3KoNcKyFN+ucqv7JE50Ya+tka7E1zQOkiztpedmZHd1OqhqS8Yh59cNEsM91208znjWt9Eg0YYkndvoe0zAwIKNlEIhyunYdUVGs3r034mv1GqpOZ6fDwf8w1Y12VGe3eS+nUe1YIjXDoHjrRsMOsfYj6V5ehAyO+uRQpU6waZDceOKUBQO4MpgvMNofUnaP1UDvLNFz02lST/7Mg9LvfJSHDIz5uWv6+vX4PMR529ZNGi9fEbkXAaGEFCg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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 Acked-by: David Hildenbrand (Arm) Reviewed-by: Mike Rapoport (Microsoft) Reviewed-by: Lorenzo Stoakes (Oracle) Reviewed-by: Zi Yan CC: Li Wang Signed-off-by: Chunyu Hu --- V3 changes: - Add review by from Mike - Add acked-by from David V2 changes: - Move the exit chunk to the front of ksft_print_headers() as suggested by David. - Add reviewed by from Zi and Lorenzo --- tools/testing/selftests/mm/transhuge-stress.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/testing/selftests/mm/transhuge-stress.c b/tools/testing/selftests/mm/transhuge-stress.c index bcad47c09518..7a9f1035099b 100644 --- a/tools/testing/selftests/mm/transhuge-stress.c +++ b/tools/testing/selftests/mm/transhuge-stress.c @@ -17,6 +17,7 @@ #include #include "vm_util.h" #include "kselftest.h" +#include "thp_settings.h" int backing_fd = -1; int mmap_flags = MAP_ANONYMOUS | MAP_NORESERVE | MAP_PRIVATE; @@ -37,6 +38,9 @@ int main(int argc, char **argv) ksft_print_header(); + if (!thp_is_enabled()) + ksft_exit_skip("Transparent Hugepages not available\n"); + ram = sysconf(_SC_PHYS_PAGES); if (ram > SIZE_MAX / psize() / 4) ram = SIZE_MAX / 4; -- 2.53.0