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 E47B83B8D60 for ; Sat, 6 Dec 2025 22:05:52 +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=1765058753; cv=none; b=MSlzG/752PxVidBJovrfUVtxKR4DmQoBh+HfEJeRKC739olbRqXu9p2aaVuUHn6DhEGDYoMWBqNMqnwzeNeaWWaVKa4itfAs11J3Ngg/zkw5BFLJvm1VT1ioKCdFTWnMskqD1PVJ57SA3PdjOpuenvWRcve4TXu2hdRq7+sjenI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765058753; c=relaxed/simple; bh=H3z9Cnb9U7VfJgoDhRr0EpdZIUsQCyrVxxYoSsfl1iE=; h=Date:To:From:Subject:Message-Id; b=SduJZJsEvwKSnCEsfmW0WY04ctLAJtCTP2q5+OBswTUxSzrbdwjxEDxiok8un3159XI1oBrxvWND75M0T15rKi667eGhUDNLHgFe9z9edwn6uVCUpYtQYyQzOQN3vmk8pdx8cudDzVkTrflsMDrNaZbPr7e6KA3ocTKN9T39RvM= 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=KB3ITQZr; 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="KB3ITQZr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 55CD5C4CEF5; Sat, 6 Dec 2025 22:05:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1765058752; bh=H3z9Cnb9U7VfJgoDhRr0EpdZIUsQCyrVxxYoSsfl1iE=; h=Date:To:From:Subject:From; b=KB3ITQZrkajLnGZFi2QRgwyKXYOmbYH8PbHh9WfgBBUKthtXc/DdXBHN24oVOWFmo nw/sZjTxMsnDtSHdEwqOM3X6AyOMLC1eyp8af+Vqkh3MMrFR9N+dQ99B9BYHehLW4l xeHOx292+1L4/8hpt9f7yCLsYKyWlLtPHPVrbi5c= Date: Sat, 06 Dec 2025 14:05:51 -0800 To: mm-commits@vger.kernel.org,yanquanmin1@huawei.com,sj@kernel.org,arnd@arndb.de,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-damon-tests-core-kunit-avoid-damos_test_commit-stack-warning.patch added to mm-unstable branch Message-Id: <20251206220552.55CD5C4CEF5@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm/damon/tests/core-kunit: avoid damos_test_commit stack warning has been added to the -mm mm-unstable branch. Its filename is mm-damon-tests-core-kunit-avoid-damos_test_commit-stack-warning.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-tests-core-kunit-avoid-damos_test_commit-stack-warning.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 the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Arnd Bergmann Subject: mm/damon/tests/core-kunit: avoid damos_test_commit stack warning Date: Thu, 4 Dec 2025 11:03:54 +0100 The newly added damos_test_commit() constructs multiple large structures on the stack, which exceeds the warning limit in some cases: In file included from mm/damon/core.c:2941: mm/damon/tests/core-kunit.h: In function 'damos_test_commit': mm/damon/tests/core-kunit.h:965:1: error: the frame size of 1520 bytes is larger than 1280 bytes [-Werror=frame-larger-than=] Split this function up into two separate ones that are called sequentially, so they can occupy the same stack slots. Link: https://lkml.kernel.org/r/20251204100403.1034980-1-arnd@kernel.org Fixes: 299a88f6ec13 ("mm/damon/tests/core-kunit: add damos_commit() test") Signed-off-by: Arnd Bergmann Reviewed-by: SeongJae Park Cc: Quanmin Yan Signed-off-by: Andrew Morton --- mm/damon/tests/core-kunit.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) --- a/mm/damon/tests/core-kunit.h~mm-damon-tests-core-kunit-avoid-damos_test_commit-stack-warning +++ a/mm/damon/tests/core-kunit.h @@ -924,7 +924,7 @@ static void damos_test_commit_for(struct } } -static void damos_test_commit(struct kunit *test) +static void damos_test_commit_pageout(struct kunit *test) { damos_test_commit_for(test, &(struct damos){ @@ -945,6 +945,10 @@ static void damos_test_commit(struct kun DAMOS_WMARK_FREE_MEM_RATE, 800, 50, 30}, }); +} + +static void damos_test_commit_migrate_hot(struct kunit *test) +{ damos_test_commit_for(test, &(struct damos){ .pattern = (struct damos_access_pattern){ @@ -1230,7 +1234,8 @@ static struct kunit_case damon_test_case KUNIT_CASE(damos_test_commit_quota), KUNIT_CASE(damos_test_commit_dests), KUNIT_CASE(damos_test_commit_filter), - KUNIT_CASE(damos_test_commit), + KUNIT_CASE(damos_test_commit_pageout), + KUNIT_CASE(damos_test_commit_migrate_hot), KUNIT_CASE(damon_test_commit_target_regions), KUNIT_CASE(damos_test_filter_out), KUNIT_CASE(damon_test_feed_loop_next_input), _ Patches currently in -mm which might be from arnd@arndb.de are mm-damon-tests-core-kunit-avoid-damos_test_commit-stack-warning.patch mm-shmem-avoid-build-warning-for-config_shmem=n.patch