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 22E5AC55ABA for ; Wed, 5 Aug 2026 15:15:31 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id DB5026B0093; Wed, 5 Aug 2026 11:15:29 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D8BC96B0095; Wed, 5 Aug 2026 11:15:29 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C7C4B6B0096; Wed, 5 Aug 2026 11:15:29 -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 9E0946B0093 for ; Wed, 5 Aug 2026 11:15:29 -0400 (EDT) Received: from smtpin06.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 16FED1204D0 for ; Wed, 5 Aug 2026 15:15:29 +0000 (UTC) X-FDA: 85067564778.06.880CA08 Received: from flow-b1-smtp.messagingengine.com (flow-b1-smtp.messagingengine.com [202.12.124.136]) by imf19.hostedemail.com (Postfix) with ESMTP id 2D0E41A0010 for ; Wed, 5 Aug 2026 15:15:27 +0000 (UTC) Authentication-Results: imf19.hostedemail.com; dkim=pass header.d=shutemov.name header.s=fm1 header.b=CV16dChQ; dkim=pass header.d=messagingengine.com header.s=fm3 header.b="B rkCumc"; spf=pass (imf19.hostedemail.com: domain of kirill@shutemov.name designates 202.12.124.136 as permitted sender) smtp.mailfrom=kirill@shutemov.name; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1785942927; 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-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=U7ZkDliwRfxhvVTQMfE6v/Ojz2Rmn9+34DO9xroTB1E=; b=thPW6AT/xMTATD5j0n/lVUNqYY201qxMc0Kv5MFSfvc5YJ9C1Opn0U/4YrhU9g2xp825IL 8kfNiPU6w6M2kU31VywUCiEmGql0byTNPZSAJI76DrpltDKA0cQuP4T56ReAk8VSV2af+C tv+Batb91CoHcO8Cla0c4hINH4AMx7g= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1785942927; b=7E2cR89VpD0XxHbDql9RT6tntDxQ5z+LWCZoo0xOaobnch6cXlw2urlptlAD/JFqxj9WSy SmL1/eRzN6+nDTp9koaM6a1z+i54nY0UKw/ZRWkpDX8uuYC8BIe3oww9JbGTy1SOuyuRNk owiIUlydCGCySqiPZccP/tzItzGJ8fk= ARC-Authentication-Results: i=1; imf19.hostedemail.com; dkim=pass header.d=shutemov.name header.s=fm1 header.b=CV16dChQ; dkim=pass header.d=messagingengine.com header.s=fm3 header.b="B rkCumc"; spf=pass (imf19.hostedemail.com: domain of kirill@shutemov.name designates 202.12.124.136 as permitted sender) smtp.mailfrom=kirill@shutemov.name; dmarc=none Received: from phl-compute-06.internal (phl-compute-06.internal [10.202.2.46]) by mailflow.stl.internal (Postfix) with ESMTP id 77BBF13001B1; Wed, 5 Aug 2026 11:15:25 -0400 (EDT) Received: from phl-frontend-03 ([10.202.2.162]) by phl-compute-06.internal (MEProxy); Wed, 05 Aug 2026 11:15:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=shutemov.name; h=cc:cc:content-transfer-encoding:content-type:content-type :date:date:from:from:in-reply-to:in-reply-to:message-id :mime-version:references:reply-to:subject:subject:to:to; s=fm1; t=1785942925; x=1785950125; bh=U7ZkDliwRfxhvVTQMfE6v/Ojz2Rmn9+3 4DO9xroTB1E=; b=CV16dChQ5cM5hNAW2Xpz1qNJpSQFxsNzwTScqiWyrQlluc/E ZFKqQczPOSUsA9Vxt5qXDBq+ApY6rJ/BXHyZRFyljNZhcuzlUCOQ7R/G1LTAEhy1 IxA290pnEXJ6pqnNcsxpX6wKjG3fkxc7adu5yGhxTGBxM4CYVpswo9bizhNqOEfM BwZllnnVo+1mj0jiF/JquD4NAu0KPERBz2xnfFig9serGOpFnz/VfekMThWJhiy2 xVS2nGmHfb5EgLmRZob/+XosVo92W3Rquq32vl3nmcRE9lIt2cyuJo/s/ku2q07R zRWE8V1VVoicdDIAFPuPxBjEb1ApFbQb8TXqag== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm3; t=1785942925; x= 1785950125; bh=U7ZkDliwRfxhvVTQMfE6v/Ojz2Rmn9+34DO9xroTB1E=; b=B rkCumcSu1eHyLBD3L8/6qpJ7NjR3/c4/OP8fmym4j9kyI1dyDFjet/ZYtmcQe0fM OCSuv49cCjdk2oOd7I1d9Ahd7qwjRbEclDLNa5gI9/iR22zO4zqRR96O2Rh2lTTE LuHSf5KK4K4e7k3eAPJkn4XQv8iJISND8X+PjS2CBwMyw37NK6Hrqc2QPhoIDXc0 WgJcg9x1x3vGSFtLad1zHVdH/InzfY1x9c89LtNnI5SszS3fyMLryGcB+KsmOUzK bv0HwcHFM5iVitUq/CCDWmVEqmw/+vkHaePSVLCOpbcdASPiJYNyOgouw3R1bM9g rwE9wQTO0FClXfmc6aeUw== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: dmFkZTFHKfj67EM/RMXyAf8uRwuo4d07TxotiadWQn4kDCiLCwUYzIuTbRY0RQpqX1k6oT WhTK1MOY3WugcZC52K6LXS1Rl3mBLj4Ydb/byy10WXX4yQi8pS1xDlrsOpEcGgy7a7AZoi 98lQtQp6JVBcANtP5P0BIFc32itP8/jhbG2tyfi2fKtKxnb9ghmdFsDUE7bqwkkR7Yvw0l i/G5WnwWrqwe76bY+cx4Au05hC+Ivxa14J26Fgx2R3u+UI2ASEvRk5kw9iNsEtAu/rP6f2 MVh/CfN4p4xRMbrhEycC2/Kf8tHkS7P0O/aL+LzcQiVtX7lqrcR/V09fdS3w/RWkCAdIpb i4lsQQepRlniLqqftZOHcYZ8KgDi2xU8bSle35erJaDDYsFmaAURN6wGQh5U7B4XI04Uso 8X1i5GlrW84Sd8Akb0Uk8/qfTHSEHdXmn4DhzmoVAFeWBlq7TqXJdjxXE+97Gpyr5GhFVy nMrucB/VyyG5aBahifVcC+/4e2cw9da0TU23ve+UKw3DkTkdTfSDv4puLLPVP95se+oflH NYELDcUsbrfkctuBFqs8cXsupQ8mBdUtiA1iRYeHhBpa4i2B1UZXSL7EwDrM4LLaCL9a64 MGJTxaWsmwawyKe9I3H1xO5E4+Lwqo9kuAeTqnmIXerZqi/PgwsvLc3rDZpA X-ME-Proxy: Feedback-ID: ie3994620:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 5 Aug 2026 11:15:24 -0400 (EDT) Date: Wed, 5 Aug 2026 16:15:23 +0100 From: Kiryl Shutsemau To: Baolin Wang Cc: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , Nico Pache , Barry Song , Dev Jain , Hugh Dickins , Lance Yang , "Liam R. Howlett" , Michal Hocko , Mike Rapoport , Ryan Roberts , Shuah Khan , Suren Baghdasaryan , Usama Arif , Vlastimil Babka , Zi Yan , linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 00/16] selftests/mm: improve khugepaged coverage Message-ID: References: <20260802195254.1937477-1-kirill@shutemov.name> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 2D0E41A0010 X-Stat-Signature: hd44ggatybfizm5g76bask6rc98pn1p6 X-HE-Tag: 1785942927-406182 X-HE-Meta: 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 OZzIDhY1 Ned7d62nVrGxToxXxTG4QuVX6Aq5ISaq58+k2amncX5+WJUzOudTENLvgYi5wcWREdPsLsdNyBbZdHxv/bc+SKaKRSUK73tRl8nOYaktRrU8JBNvM9cvGz2ekgcpzyvc5TX8sOHsStss4sIFnPeEYzGvPThBK8s21RDNEc/jKLv5EZVQxNuK+Qg3JU0F/HX5KoJXWFYhLiYtH1onTfFAlM0W6j//Miqe0SLd9APXOS2i+deTvSjk4OTOasVAujgc/DVeoCfF5+HtuMdRGhJg/Fam/rwGEXCOiv657u1Okr3AIrN/sBFDV60yAtQ/kGWdm4UZmlxWPBHgNaf1dvAGWaFZHR9NrpbfgNugx/LzPKRuCFlSZXICWcWbvfaFWgqvbFXVchd2d1n/ODjzk/AMErccnMK+30s+iSWW0llyGLWNZQpbS5Uu6G51nAabSy+5EMS379UAUeBDIXZBFuGWvvNdRWz2UxGopMCR6NeRP0ePtBJY= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Aug 03, 2026 at 09:21:09AM +0800, Baolin Wang wrote: > > > On 8/3/26 3:52 AM, Kiryl Shutsemau wrote: > > From: "Kiryl Shutsemau (Meta)" > > > > mTHP collapse went in for 7.2 with no functional selftest coverage. Every > > khugepaged collapse case is PMD-shaped, down to the detection: it reads > > smaps AnonHugePages, which cannot see anything below the PMD order. > > Yes, I’ve already sent out several versions of mTHP collapse test cases[1]. > Not sure if you’ve seen my patchset, and it looks like some of our work > overlaps :( My bad. I've missed it. Acked now. I will rebase my patches on top of yours and removing duplication. -- Kiryl Shutsemau / Kirill A. Shutemov