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Tue, 17 Mar 2026 09:46:35 +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-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 9935C3000223; Tue, 17 Mar 2026 09:45:10 +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 v3 5/5] selftests/mm: transhuge_stress: skip the test when thp not available Date: Tue, 17 Mar 2026 17:44:19 +0800 Message-ID: <20260317094419.1429259-6-chuhu@redhat.com> In-Reply-To: <20260317094419.1429259-1-chuhu@redhat.com> References: <20260317094419.1429259-1-chuhu@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-Mimecast-MFC-PROC-ID: kJkz7A2F3RnVqLcwm2l7qoUjsFcAIIPJInSPH3G5Ei4_1773740795 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Rspamd-Queue-Id: 069D54000C X-Stat-Signature: p6mcs6r79aia7egmaw34ios8p7axshk9 X-Rspam-User: X-Rspamd-Server: rspam05 X-HE-Tag: 1773740800-758316 X-HE-Meta: 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 E0nbuooc YuSZTkVbuLdsjCmK9OE0avi43AhTzV2StDQnE6zsRbNarPguFP0bNeVv0m689glvkDe+lHb5hkMN0pAYPQ1CD93A/jxOElC3PMuYTOj8UI2e+Mr5KaSbItxh3Hq7ILZ9xtNttt0VleCzUYJBQl4s2fHcxef5iFwPxfSRmY7yK5yoKriNM3QDGU1Doh7A27GNPP4L0CRY47ZGiECr9ZFjWKxbP6iNl7h5sb4gYFa2uiAvEOQqu0i+r8/tCVVdyGwY1riF3vjB+85twTiIu95eyEZOklshfkwDHcFDL+pTqoqsr0v8luOgrWYUpGRdm90tQ8TkeeJ1Io1+s6+KLjur0ytbk2H6Tp8eshV2IFnmAHwwM+BZtO/QyBIzgZp6Z9jPC//AtI8nDpY0lkHlhuXl0IfgCjdYgCAI6RhxO1DIL4nvY0eJGAbiUAIyEkg== 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