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Thu, 12 Mar 2026 11:41:21 +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-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 7D58C180035F; Thu, 12 Mar 2026 11:41:12 +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: [RESEND PATCH 4/4] selftests/mm: transhuge_stress: skip the test when thp not available Date: Thu, 12 Mar 2026 19:40:27 +0800 Message-ID: <20260312114027.634559-5-chuhu@redhat.com> In-Reply-To: <20260312114027.634559-1-chuhu@redhat.com> References: <20260312114027.634559-1-chuhu@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 X-Mimecast-MFC-PROC-ID: x_xVp97rb_cmPVswXH4DRNMdi9qF_Uup4MYpIK62FZk_1773315681 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: C580620002 X-Stat-Signature: rsxpy5y747yups74zzpgujy8rbubr9gz X-HE-Tag: 1773315687-450187 X-HE-Meta: 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 RQJaCZ0X 4Kecuzgk3pqfv4vs3IUJqACcA9zZk7EozCmchdbtj4I/VfdWMvBlki/sTyQG2BxHnATtzaMU6nFVvczE5+RpeuwledgYLLpKXaDef8OiLn874fR4MJF52Y7VPfd4pHkb5HAQXu/C9ktFAy3QEhjDMHIvCLvruw6zSUPUC5gc43dZDLLV3hdanuuK/DTYss+RNirEK5newt0/XSir6ax3ufjjPU4lu5/ZMiBQFqw9AA4nFzPRlFuHs/T3fJoNUCzuciSmTjokG2+HrWnCsXuObK5V8GeAwxsqmNYDfI2GDaCguZS/I8Bnwxc3W4PGTw04weY9blrQLy7V7L2Xdph4DOk2suN2I3g4GABLBznyzNSPdsuTs501Ognv8qvjRMfQapm9TdikzMFiBWnc= 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 # -------------------------------- # 1..0 # SKIP Transparent Hugepages not available # [SKIP] ok 5 transhuge-stress -d 20 # SKIP CC: Li Wang Signed-off-by: Chunyu Hu --- 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..76316696426d 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; @@ -35,6 +36,9 @@ int main(int argc, char **argv) int pagemap_fd; int duration = 0; + if (!thp_is_enabled()) + ksft_exit_skip("Transparent Hugepages not available\n"); + ksft_print_header(); ram = sysconf(_SC_PHYS_PAGES); -- 2.53.0