From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D0703CD13DE for ; Fri, 1 May 2026 02:21:20 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id D37236B0088; Thu, 30 Apr 2026 22:21:19 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id CE7C76B008A; Thu, 30 Apr 2026 22:21:19 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id BFE296B008C; Thu, 30 Apr 2026 22:21:19 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id B08736B0088 for ; Thu, 30 Apr 2026 22:21:19 -0400 (EDT) Received: from smtpin07.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 0ECFB12037C for ; Fri, 1 May 2026 02:21:19 +0000 (UTC) X-FDA: 84717249078.07.9733936 Received: from out-179.mta0.migadu.com (out-179.mta0.migadu.com [91.218.175.179]) by imf02.hostedemail.com (Postfix) with ESMTP id 5221780002 for ; Fri, 1 May 2026 02:21:17 +0000 (UTC) Authentication-Results: imf02.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=UZn6lwAU; spf=pass (imf02.hostedemail.com: domain of li.wang@linux.dev designates 91.218.175.179 as permitted sender) smtp.mailfrom=li.wang@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1777602077; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:references:dkim-signature; bh=3twploam4MV/bq5u/Ty0iH6HK100PxWqx9qv6h7XzQg=; b=oSHx5Q9PbXueb8j5Z15WfbO5vDQJt52nMOcFBsTFBVdztSHmP6lLjBF7j4pm2+0ng6TA4Y BguQUQSHM0V3gDRMFSGl2cHgg7l7VcXaD/xbfY9fyJRfcIhxbjYWO0l0tJuz5CP4Qi6upw FpodZy0Trfug0eDr0DnODu4OI0gL7Ko= ARC-Authentication-Results: i=1; imf02.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=UZn6lwAU; spf=pass (imf02.hostedemail.com: domain of li.wang@linux.dev designates 91.218.175.179 as permitted sender) smtp.mailfrom=li.wang@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1777602077; a=rsa-sha256; cv=none; b=OwPC6GbNujg3J4kioOcZh3fm8rU+hvjpINen9S8pYLMsZdJsPLSUDtfH7Y6vfumzpPu0+l mT3C+/rQPGagklWHGpGD2kBd2LKlmfv72TgmksQo3l8dydyIuaxnGK0zedRDo+9BRz4gCk CS6YA7A/rKdF9n+h2AUvy4TGPwsM+pc= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1777602075; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=3twploam4MV/bq5u/Ty0iH6HK100PxWqx9qv6h7XzQg=; b=UZn6lwAUya5Xqtq40t+UrkKEXXFY9Z2IHb6Rwly1pbpj3+VOZ9/R474cwB5eDgVQvM3oFz tq4oR7/tjB2jcS5ypfFobRHj/IGmLL5MTnbWaRkWgjFUw47NQ/iWJQPXkmJDYH0Wbgi8lE soqpuUXGjwL2TyvDxA3aI1aUZnDg530= From: Li Wang To: akpm@linux-foundation.org, hannes@cmpxchg.org, mhocko@kernel.org, roman.gushchin@linux.dev, shakeel.butt@linux.dev, muchun.song@linux.dev, tj@kernel.org, mkoutny@suse.com, shuah@kernel.org Cc: cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/2] selftests/cgroup: Fix false positive failures in test_percpu_basic Date: Fri, 1 May 2026 10:20:56 +0800 Message-ID: <20260501022058.18024-1-li.wang@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Stat-Signature: o66yeppu5cz6aea97ik51am1nguzqzkn X-Rspamd-Queue-Id: 5221780002 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1777602077-645037 X-HE-Meta: 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 eGZw+HDn eaYTGQa3RRQyMDHsTFIJt7wtFyPAGx0idjG53dwxJsT2YLt9MTBm5UBrw/geq7mYTMNfDpwlS5foQH9/dxE28irj7mT6oyNf/tkO2hQU+jsLWtqPeGBnUealE22U0JmtxwF5BgZlGw+nqnEplec+JMFlkgYS0TYnaEacXWbPj5k1oaGUk1zXw1zmlfTzHq35q/jfcXIIwFIee8/LRTSlVna+/cZ2NA0fsYyF2pIe93O3jbKz0QJeLptIezTrqFaCnYiVLNNsJH5594Dh+6XyYLvM8HA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: This patch series addresses two separate issues that cause false positive failures in the test_percpu_basic test within the cgroup kmem selftests. The first issue stems from a hardcoded assumption about the system page size, which breaks the test on architectures with larger page sizes. The second issue is an overly strict memory check that fails to account for the slab metadata allocated during cgroup creation. v2: * Replace my email with li.wang@linux.dev * Adding Waiman's Reviewed-by tag Li Wang (2): selftests/cgroup: Fix hardcoded page size in test_percpu_basic selftests/cgroup: include slab in test_percpu_basic memory check tools/testing/selftests/cgroup/test_kmem.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) -- 2.54.0