From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 481B33F8817 for ; Thu, 19 Mar 2026 20:57:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773953826; cv=none; b=O0+Tc1Jf/nQvUN2IU42kIloluk06VyQQwRBdQrYd3fZCeLuqK4nBhNealoIMHbbV7t0kXQM2sAtLKWRLTZHWLJlFXw7TOKT2phmhoYCUcSPImdkGYKiiHxGot1pclzhQKNKpHvyB5On69GZo6H3Arfhl+pLDjtdYY03QPj77LNM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773953826; c=relaxed/simple; bh=xD3tmCN6gdVgfnaM+oq1zhMacKNfUfJw3fDEuwgu6lo=; h=Date:To:From:Subject:Message-Id; b=j2eVQb82m0sSOesyRfzsK1amuXU3mzEReP9OXhiPLmsfrm5KI8t1iTkJCd3VUui+/lu/X9UYpnEwWWh6wiH++rWzlSpIZbOlMwPXFrxxUAXAKclQa6i060jdGZc/LM3RPb3Kxoj7ZHm2K9GkuMqrqRFIrzR2xH5zTzt0HEcQkog= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=UfzpVmIK; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="UfzpVmIK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D0DD0C2BCAF; Thu, 19 Mar 2026 20:57:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1773953825; bh=xD3tmCN6gdVgfnaM+oq1zhMacKNfUfJw3fDEuwgu6lo=; h=Date:To:From:Subject:From; b=UfzpVmIKDt4ipozctQN/O2qp3DT7L2/K98JxdPYWhWTrqQVgrExjkYeMTfbRRxd1H 1xbXA1NvOTWGltErkPvdeLyy4H2obaHlRAgAdJLV+sjeoYOflx+frtb4ELdUrxxYkK n/W3F6dW3b+OnDRv8vhRKVmJ3dTPyme8bWKBtmMs= Date: Thu, 19 Mar 2026 13:57:05 -0700 To: mm-commits@vger.kernel.org,ziy@nvidia.com,vbabka@suse.cz,surenb@google.com,shuah@kernel.org,ryan.roberts@arm.com,rppt@kernel.org,npache@redhat.com,mhocko@suse.com,ljs@kernel.org,liwang@redhat.com,liam.howlett@oracle.com,lance.yang@linux.dev,dev.jain@arm.com,david@kernel.org,baolin.wang@linux.alibaba.com,baohua@kernel.org,chuhu@redhat.com,akpm@linux-foundation.org From: Andrew Morton Subject: + selftests-mm-transhuge_stress-skip-the-test-when-thp-not-available.patch added to mm-new branch Message-Id: <20260319205705.D0DD0C2BCAF@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: selftests/mm: transhuge_stress: skip the test when thp not available has been added to the -mm mm-new branch. Its filename is selftests-mm-transhuge_stress-skip-the-test-when-thp-not-available.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-transhuge_stress-skip-the-test-when-thp-not-available.patch This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. The mm-new branch of mm.git is not included in linux-next If a few days of testing in mm-new is successful, the patch will me moved into mm.git's mm-unstable branch, which is included in linux-next Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: Chunyu Hu Subject: selftests/mm: transhuge_stress: skip the test when thp not available Date: Fri, 20 Mar 2026 00:06:56 +0800 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 Link: https://lkml.kernel.org/r/20260319160656.1480279-6-chuhu@redhat.com Signed-off-by: Chunyu Hu Acked-by: David Hildenbrand (Arm) Reviewed-by: Mike Rapoport (Microsoft) Reviewed-by: Lorenzo Stoakes (Oracle) Reviewed-by: Zi Yan Cc: Li Wang Cc: Baolin Wang Cc: Barry Song Cc: Dev Jain Cc: Lance Yang Cc: Liam Howlett Cc: Michal Hocko Cc: Nico Pache Cc: Ryan Roberts Cc: Shuah Khan Cc: Suren Baghdasaryan Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- tools/testing/selftests/mm/transhuge-stress.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/tools/testing/selftests/mm/transhuge-stress.c~selftests-mm-transhuge_stress-skip-the-test-when-thp-not-available +++ a/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; _ Patches currently in -mm which might be from chuhu@redhat.com are selftests-mm-guard-regions-skip-collapse-test-when-thp-not-enabled.patch selftests-mm-soft-dirty-skip-two-tests-when-thp-is-not-available.patch selftests-mm-move-write_file-helper-to-vm_util.patch selftests-mm-split_huge_page_test-skip-the-test-when-thp-is-not-available.patch selftests-mm-transhuge_stress-skip-the-test-when-thp-not-available.patch