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Mon, 23 Mar 2026 15:19:00 +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-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 1B93E1955D71; Mon, 23 Mar 2026 15:18:51 +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 v5 6/6] selftests/mm: transhuge_stress: skip the test when thp not available Date: Mon, 23 Mar 2026 23:17:53 +0800 Message-ID: <20260323151753.2576137-7-chuhu@redhat.com> In-Reply-To: <20260323151753.2576137-1-chuhu@redhat.com> References: <20260323151753.2576137-1-chuhu@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 X-Mimecast-MFC-PROC-ID: uBu-VuFHttUjVExIpjXwiZsXi3WiATBOP9N6iq5b8qA_1774279140 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Rspam-User: X-Rspamd-Queue-Id: 3A82940009 X-Stat-Signature: ao4yxbxyxrjfwgpw5pijx89ittwkdbb3 X-Rspamd-Server: rspam06 X-HE-Tag: 1774279149-371985 X-HE-Meta: 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 1BZ+NTZs PcG8BLKkYrAaZGEBC7yMABO+q56qXJ8i9OF+iS0JQ1as4t23xXRd8QeWg0GhuUo1IMhh1CGCPv5bNGkzks9fsom04JVOg3YLEsNrxJBxecXnQZumz//EHg41HqQBrs3op8d2pn2BBqUud8FyGegWFVRS+m4LSAPAsjNoSqjVgakRtRlV2obOGPYYuaP7Gt+QW3KQHTF9MNmxaOugAmrzS2ChEhZ3Rrk8SzX/1VKWyPY3bsxkbm/Dg702yIrQ7cHAl5HGuXxU/vJW2Vwdgjax1xibiekPagVFMAMLuW6NVaTT82HRIAu9L1XTFpKfn5UiHblUSh5P3CdFNAaki5wwTxyLNQScGgr1r5mNnNLjmPPXg/H0uXupa1HfgMyA0wjn7el2mGGnzdImOPx32GQFw8U4X7hXmpms4HIoT+JlK9ro0x4LvrKWCSGsKwg== 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