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 F195C39DBCA for ; Tue, 10 Mar 2026 16:43:23 +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=1773161004; cv=none; b=Que2L8TjLI5FfDGyOurufqKLGKmgQiR9QtwqgkWCi3VSPis0V+BH5bTmtkFbqX21tNjkhcdvV6mf0cX2TRdX0LPcXRN3yTQA240vCBR9ob4mo4NMjAU8VLdg1EnBOz4Ze514MapDqdWx08StvBcxfH8A6NZg6P11lP+HC51x+mU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773161004; c=relaxed/simple; bh=LtQ+e2V14p4I36d4umY1PMceOlNWB0A0u65RwihyhW4=; h=Date:To:From:Subject:Message-Id; b=CWK9+t9XDbKK12w8hrKBPHA2bXAqJzsXDm7WyxK2PhxVZW5eLnTigReNXnIR99rtZLvsNC9enX3dRummtdf07NMJ5MMv3wldyNwMXNmfjtcnGXF8fqa7d1vzFcPzcnlIWa/NMMGkKyi/LyqCYmOtmWJ9Eu/+YPdr4hhFX4XFWt0= 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=A7KvAfnc; 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="A7KvAfnc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AEC3DC19423; Tue, 10 Mar 2026 16:43:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1773161003; bh=LtQ+e2V14p4I36d4umY1PMceOlNWB0A0u65RwihyhW4=; h=Date:To:From:Subject:From; b=A7KvAfncArs/zCdozmxNxhcyDJsVwhbe+eLamH2KlmrE0nPAAcR9FT0aW1rXX0Rzu +GEUINDyj+T/i0G0RrXZOArNaNXEXF3jReDECx0nrQF/Kvy/HFOKRbj/VkvhRUWwi1 3d8RUzFNIZx7hItKk1ca///wV20je9HNIwl5QOqg= Date: Tue, 10 Mar 2026 09:43:23 -0700 To: mm-commits@vger.kernel.org,ziy@nvidia.com,usama.anjum@collabora.com,tj@kernel.org,shuah@kernel.org,shakeel.butt@linux.dev,roman.gushchin@linux.dev,ritesh.list@gmail.com,osalvador@suse.de,muchun.song@linux.dev,mkoutny@suse.com,mhocko@kernel.org,lorenzo.stoakes@oracle.com,liam.howlett@oracle.com,hannes@cmpxchg.org,dev.jain@arm.com,david@kernel.org,sayalip@linux.ibm.com,akpm@linux-foundation.org From: Andrew Morton Subject: + selftests-mm-move-hwpoison-setup-into-run_test-and-silence-modprobe-output-for-memory-failure-category.patch added to mm-new branch Message-Id: <20260310164323.AEC3DC19423@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: move hwpoison setup into run_test() and silence modprobe output for memory-failure category has been added to the -mm mm-new branch. Its filename is selftests-mm-move-hwpoison-setup-into-run_test-and-silence-modprobe-output-for-memory-failure-category.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-move-hwpoison-setup-into-run_test-and-silence-modprobe-output-for-memory-failure-category.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: Sayali Patil Subject: selftests/mm: move hwpoison setup into run_test() and silence modprobe output for memory-failure category Date: Tue, 10 Mar 2026 15:19:30 +0530 run_vmtests.sh contains special handling to ensure the hwpoison_inject module is available for the memory-failure tests. This logic was implemented outside of run_test(), making the setup category-specific but managed globally. Move the hwpoison_inject handling into run_test() and restrict it to the memory-failure category so that: 1. the module is checked and loaded only when memory-failure tests run, 2. the test is skipped if the module or the debugfs interface (/sys/kernel/debug/hwpoison/) is not available. 3. the module is unloaded after the test if it was loaded by the script. This localizes category-specific setup and makes the test flow consistent with other per-category preparations. While updating this logic, fix the module availability check. The script previously used: modprobe -R hwpoison_inject The -R option prints the resolved module name to stdout, causing every run to print: hwpoison_inject in the test output, even when no action is required, introducing unnecessary noise. Replace this with: modprobe -n hwpoison_inject which verifies that the module is loadable without producing output, keeping the selftest logs clean and consistent. Link: https://lkml.kernel.org/r/832afc6c34a784ca433b506622cdc98fe9540f79.1773134177.git.sayalip@linux.ibm.com Fixes: ff4ef2fbd101 ("selftests/mm: add memory failure anonymous page test") Signed-off-by: Sayali Patil Cc: David Hildenbrand Cc: Dev Jain Cc: Johannes Weiner Cc: Liam Howlett Cc: Lorenzo Stoakes Cc: Michal Hocko Cc: "Michal Koutný" Cc: Muchun Song Cc: Muhammad Usama Anjum Cc: Oscar Salvador Cc: "Ritesh Harjani (IBM)" Cc: Roman Gushchin Cc: Shakeel Butt Cc: Shuah Khan Cc: Tejun Heo Cc: Zi Yan Signed-off-by: Andrew Morton --- tools/testing/selftests/mm/run_vmtests.sh | 46 ++++++++++++-------- 1 file changed, 28 insertions(+), 18 deletions(-) --- a/tools/testing/selftests/mm/run_vmtests.sh~selftests-mm-move-hwpoison-setup-into-run_test-and-silence-modprobe-output-for-memory-failure-category +++ a/tools/testing/selftests/mm/run_vmtests.sh @@ -250,6 +250,27 @@ run_test() { fi fi + # Ensure hwpoison_inject is available for memory-failure tests + if [ "${CATEGORY}" = "memory-failure" ]; then + # Try to load hwpoison_inject if not present. + HWPOISON_DIR=/sys/kernel/debug/hwpoison/ + if [ ! -d "$HWPOISON_DIR" ]; then + if ! modprobe -n hwpoison_inject > /dev/null 2>&1; then + echo "Module hwpoison_inject not found, skipping..." \ + | tap_prefix + skip=1 + else + modprobe hwpoison_inject > /dev/null 2>&1 + LOADED_MOD=1 + fi + fi + + if [ ! -d "$HWPOISON_DIR" ]; then + echo "hwpoison debugfs interface not present" | tap_prefix + skip=1 + fi + fi + local test=$(pretty_name "$*") local title="running $*" local sep=$(echo -n "$title" | tr "[:graph:][:space:]" -) @@ -261,6 +282,12 @@ run_test() { else local ret=$ksft_skip fi + + # Unload hwpoison_inject if we loaded it + if [ -n "${LOADED_MOD}" ]; then + modprobe -r hwpoison_inject > /dev/null 2>&1 + fi + count_total=$(( count_total + 1 )) if [ $ret -eq 0 ]; then count_pass=$(( count_pass + 1 )) @@ -542,24 +569,7 @@ CATEGORY="page_frag" run_test ./test_pag CATEGORY="rmap" run_test ./rmap -# Try to load hwpoison_inject if not present. -HWPOISON_DIR=/sys/kernel/debug/hwpoison/ -if [ ! -d "$HWPOISON_DIR" ]; then - if ! modprobe -q -R hwpoison_inject; then - echo "Module hwpoison_inject not found, skipping..." - else - modprobe hwpoison_inject > /dev/null 2>&1 - LOADED_MOD=1 - fi -fi - -if [ -d "$HWPOISON_DIR" ]; then - CATEGORY="memory-failure" run_test ./memory-failure -fi - -if [ -n "${LOADED_MOD}" ]; then - modprobe -r hwpoison_inject > /dev/null 2>&1 -fi +CATEGORY="memory-failure" run_test ./memory-failure if [ "${HAVE_HUGEPAGES}" = 1 ]; then echo "$orig_nr_hugepgs" > /proc/sys/vm/nr_hugepages _ Patches currently in -mm which might be from sayalip@linux.ibm.com are selftests-mm-restore-default-nr_hugepages-value-during-cleanup-in-charge_reserved_hugetlbsh.patch selftests-mm-fix-hugetlb-pathname-construction-in-charge_reserved_hugetlbsh.patch selftests-mm-fix-hugetlb-pathname-construction-in-hugetlb_reparenting_testsh.patch selftest-mm-fix-cgroup-task-placement-and-tolerance-in-hugetlb_reparenting_testsh.patch selftests-mm-size-tmpfs-according-to-pmd-page-size-in-split_huge_page_test.patch selftest-mm-adjust-hugepage-mremap-test-size-for-large-huge-pages.patch selftest-mm-register-existing-mapping-with-userfaultfd-in-hugepage-mremap.patch selftests-mm-ensure-destination-is-hugetlb-backed-in-hugepage-mremap.patch selftests-mm-skip-uffd-wp-mremap-if-uffd-write-protect-is-unsupported.patch selftests-mm-skip-uffd-stress-test-when-nr_pages_per_cpu-is-zero.patch selftests-mm-fix-double-increment-in-linked-list-cleanup-in-compaction_test.patch selftests-mm-move-hwpoison-setup-into-run_test-and-silence-modprobe-output-for-memory-failure-category.patch selftests-cgroup-extend-test_hugetlb_memcgc-to-support-all-huge-page-sizes.patch