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 EA724397E86 for ; Mon, 30 Mar 2026 19:26:14 +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=1774898775; cv=none; b=MFibv1LO9kQfulWwoI4gJenVMhLQZeTbFYRfzOPxhqBtQu/eOPFt+ADeE32Xr+jcoFBBWayF5eEjYXp2qlPkgyZBBlsoSe55X+uZCWE5IUwYlDT7t8L2ioIGlG6ONqhMcEpSRVqOQVTYjy93GsSMQjsQ5/j6UcpZ/R/ooYb0WUY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774898775; c=relaxed/simple; bh=2KZ3TU3luD5dqTST+lxGdEzJyAAsgUFWBpy/Qkr7Qt0=; h=Date:To:From:Subject:Message-Id; b=phZXwp8+oM1AtI26Wov7Au0W++zbquHY1anlBOh9dSmPOIH/xLLnBxBRUIuR8im6kToSM4ErHSirVzUoBdfGJLLIVq48CcNb1nkzteK7aDT1JFtCLggDzFR/yPZ2KISnqa96WgEZFqTxmRRMxWsXdaTsaEXReg3auKWsxBjfCp8= 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=FgwpEnoX; 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="FgwpEnoX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C126BC4CEF7; Mon, 30 Mar 2026 19:26:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1774898774; bh=2KZ3TU3luD5dqTST+lxGdEzJyAAsgUFWBpy/Qkr7Qt0=; h=Date:To:From:Subject:From; b=FgwpEnoXvquWP1GyyHJbtYrPKfLg6vvkRuvPSOmqcX8cOLIYbHxxFjt42VOUazl6l fgQcysTUryfl8/lTcxLesaOEj3qN6+ansoZ7uXRmrLzPqdIPEfoEr1qIYmc3noUd39 lPAlJe2azZ4xIRezYMz2zhSUSfdh6ckNMtU66t7c= Date: Mon, 30 Mar 2026 12:26:14 -0700 To: mm-commits@vger.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-unstable branch Message-Id: <20260330192614.C126BC4CEF7@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-unstable 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-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 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: Mon, 30 Mar 2026 23:15:03 +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/20260330151503.670415-8-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 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-ksft_exit_fail_perror-support-printf-style-arguments.patch selftests-mm-vm_util-robust-write_file.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