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Thu, 12 Mar 2026 11:27:17 +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 4AD0A1800351; Thu, 12 Mar 2026 11:27:07 +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 4/4] selftests/mm: transhuge_stress: skip the test when thp not available Date: Thu, 12 Mar 2026 19:26:12 +0800 Message-ID: <20260312112612.633138-6-chuhu@redhat.com> In-Reply-To: <20260312112612.633138-1-chuhu@redhat.com> References: <20260312112612.633138-1-chuhu@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 X-Mimecast-MFC-PROC-ID: v0bgPTeyRL26oBEpzMi8R8Jsivj2ebZ78rveoJ8CNdw_1773314837 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 219774000B X-Stat-Signature: hdr9c4r6d9idz7nit5r8t733qmksqun5 X-Rspam-User: X-HE-Tag: 1773314843-113921 X-HE-Meta: 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 w7OGySFv LXJWmqQqfoWAQCgGr6DNSMpRXy7N0WNj2R22xupqu5luT05/wO28dmpvOLz4MaeHyEiWnFZ0Zc7CK5paadPwJwIVwNxKLRUaeLMW1nM472PDIgR8DqTN7BFpWzeKVPvxUp5mVaX1XVPgZAufHODwTRvVZMlHwpVk89byMd3qbCWHE8lPZGzh47D4AKbqwGfRFCIoIGmZ0V0m7KP8eHZ/4dX3eQKABubrpWf7mJzs60A14dCbeuyhuTUUPWnucuFABU0hl6xumsAnMt0AYiT/htLkfotPDJ3stJrNvrZQVGCY2E4RMxBNgBvy4R6DfLpyEHqyH/dDz6iE3pHN9d8aKI6ihFSraOvH8C1SnN9rFVtVYTuhHYkZIkxme6WN2qXrQVmJTXXDyT4elB+w= 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