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 95097C55179 for ; Mon, 3 Aug 2026 13:12:59 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 95C5B6B0099; Mon, 3 Aug 2026 09:12:57 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 934AC6B00A3; Mon, 3 Aug 2026 09:12:57 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 823746B00AC; Mon, 3 Aug 2026 09:12:57 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 50F1B6B0099 for ; Mon, 3 Aug 2026 09:12:57 -0400 (EDT) Received: from smtpin29.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay05.hostedemail.com (Postfix) with ESMTP id E5F964061F for ; Mon, 3 Aug 2026 08:23:38 +0000 (UTC) X-FDA: 85059269316.29.71CBC3C Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf24.hostedemail.com (Postfix) with ESMTP id 14ADE180007 for ; Mon, 3 Aug 2026 08:23:36 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=kIa4FNQo; spf=pass (imf24.hostedemail.com: domain of david@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1785745417; 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=Gr1XBpbnk0zX9E9Hf9+XaMO/o0eQfNbPl/6JAmkYcuQ=; b=XlPWP0ByDNgCtSXe7nzJAImvGSsi23UtbxcC8XkEb7bJw60BZ2M8HW31Lv/4U0L5Ef1Vza 2r5I+9XHKzdy2xzhx8ovZ5d4q0xE5HRHK5lIkg62fHNCpPBmjcqXO69CnPmqPH0JDJeh/W xLAry3OFAglzeqbYlUUDP+5kpOj92lM= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=kIa4FNQo; spf=pass (imf24.hostedemail.com: domain of david@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1785745417; b=ZS+aWR4JXV9AFFdFKggRx2olaSF98WWXiIb/aUwrgW65DN919Pd/7vbmhpfQ13pK2poOaI 8qTaNGXQWyoRHqTTcWr4ouBqoZqdQIHPYD+yK6tD4avPItBktLkSzYdqi5ARQsa5d3Fs6c r79DWR2OaJqAvEDazdwLb7mXCqKWJZk= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id CFF0C4172E; Mon, 3 Aug 2026 08:23:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 17C411F000E9; Mon, 3 Aug 2026 08:23:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785745414; bh=Gr1XBpbnk0zX9E9Hf9+XaMO/o0eQfNbPl/6JAmkYcuQ=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=kIa4FNQoZ10ntwIac2bANO5VbZGe8hJzsApKeARQeHnL1gzrhSOnIYU71zqqvoEpx cZ7+KVZRof25vvxshmLw4I96b9lYdzNm36vIBmRScJkd0l3gezBunlfChOJHpr6S4D PNGRaeTNk+2GQVQkLZDCE1XHSGJ7RmiUdE8/rc7oBYyKllzvrtAl9cBmtxgCZF0ZeC e9VlOnhahZzLEC5lpkUo5pzKcKVk4SQ1Qt4N0UFQuYtIvoX8VFuFKIbaWeTgNY0TNk OIGBsuMR+1eTKxuLh7I4eIRoC6+vRZYXfVjeyM6Hhp7UwqJxTl1MPb3tZDU/hHkSCU SB2HFNKUf5BDQ== Message-ID: <7b687665-765a-486c-8a30-3bdd4f28f902@kernel.org> Date: Mon, 3 Aug 2026 10:23:28 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/3] tools/mm/page_owner_sort: add module name sort/cull/filter support To: Ye Liu , Andrew Morton , Jonathan Corbet Cc: Ye Liu , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Shuah Khan , linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260803062056.1518070-1-ye.liu@linux.dev> <20260803062056.1518070-3-ye.liu@linux.dev> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzS5EYXZpZCBIaWxk ZW5icmFuZCAoQ3VycmVudCkgPGRhdmlkQGtlcm5lbC5vcmc+wsGQBBMBCAA6AhsDBQkmWAik AgsJBBUKCQgCFgICHgUCF4AWIQQb2cqtc1xMOkYN/MpN3hD3AP+DWgUCaYJt/AIZAQAKCRBN 3hD3AP+DWriiD/9BLGEKG+N8L2AXhikJg6YmXom9ytRwPqDgpHpVg2xdhopoWdMRXjzOrIKD g4LSnFaKneQD0hZhoArEeamG5tyo32xoRsPwkbpIzL0OKSZ8G6mVbFGpjmyDLQCAxteXCLXz ZI0VbsuJKelYnKcXWOIndOrNRvE5eoOfTt2XfBnAapxMYY2IsV+qaUXlO63GgfIOg8RBaj7x 3NxkI3rV0SHhI4GU9K6jCvGghxeS1QX6L/XI9mfAYaIwGy5B68kF26piAVYv/QZDEVIpo3t7 /fjSpxKT8plJH6rhhR0epy8dWRHk3qT5tk2P85twasdloWtkMZ7FsCJRKWscm1BLpsDn6EQ4 jeMHECiY9kGKKi8dQpv3FRyo2QApZ49NNDbwcR0ZndK0XFo15iH708H5Qja/8TuXCwnPWAcJ DQoNIDFyaxe26Rx3ZwUkRALa3iPcVjE0//TrQ4KnFf+lMBSrS33xDDBfevW9+Dk6IISmDH1R HFq2jpkN+FX/PE8eVhV68B2DsAPZ5rUwyCKUXPTJ/irrCCmAAb5Jpv11S7hUSpqtM/6oVESC 3z/7CzrVtRODzLtNgV4r5EI+wAv/3PgJLlMwgJM90Fb3CB2IgbxhjvmB1WNdvXACVydx55V7 LPPKodSTF29rlnQAf9HLgCphuuSrrPn5VQDaYZl4N/7zc2wcWM7BTQRVy5+RARAA59fefSDR 9nMGCb9LbMX+TFAoIQo/wgP5XPyzLYakO+94GrgfZjfhdaxPXMsl2+o8jhp/hlIzG56taNdt VZtPp3ih1AgbR8rHgXw1xwOpuAd5lE1qNd54ndHuADO9a9A0vPimIes78Hi1/yy+ZEEvRkHk /kDa6F3AtTc1m4rbbOk2fiKzzsE9YXweFjQvl9p+AMw6qd/iC4lUk9g0+FQXNdRs+o4o6Qvy iOQJfGQ4UcBuOy1IrkJrd8qq5jet1fcM2j4QvsW8CLDWZS1L7kZ5gT5EycMKxUWb8LuRjxzZ 3QY1aQH2kkzn6acigU3HLtgFyV1gBNV44ehjgvJpRY2cC8VhanTx0dZ9mj1YKIky5N+C0f21 zvntBqcxV0+3p8MrxRRcgEtDZNav+xAoT3G0W4SahAaUTWXpsZoOecwtxi74CyneQNPTDjNg azHmvpdBVEfj7k3p4dmJp5i0U66Onmf6mMFpArvBRSMOKU9DlAzMi4IvhiNWjKVaIE2Se9BY FdKVAJaZq85P2y20ZBd08ILnKcj7XKZkLU5FkoA0udEBvQ0f9QLNyyy3DZMCQWcwRuj1m73D sq8DEFBdZ5eEkj1dCyx+t/ga6x2rHyc8Sl86oK1tvAkwBNsfKou3v+jP/l14a7DGBvrmlYjO 59o3t6inu6H7pt7OL6u6BQj7DoMAEQEAAcLBfAQYAQgAJgIbDBYhBBvZyq1zXEw6Rg38yk3e EPcA/4NaBQJonNqrBQkmWAihAAoJEE3eEPcA/4NaKtMQALAJ8PzprBEXbXcEXwDKQu+P/vts IfUb1UNMfMV76BicGa5NCZnJNQASDP/+bFg6O3gx5NbhHHPeaWz/VxlOmYHokHodOvtL0WCC 8A5PEP8tOk6029Z+J+xUcMrJClNVFpzVvOpb1lCbhjwAV465Hy+NUSbbUiRxdzNQtLtgZzOV Zw7jxUCs4UUZLQTCuBpFgb15bBxYZ/BL9MbzxPxvfUQIPbnzQMcqtpUs21CMK2PdfCh5c4gS sDci6D5/ZIBw94UQWmGpM/O1ilGXde2ZzzGYl64glmccD8e87OnEgKnH3FbnJnT4iJchtSvx yJNi1+t0+qDti4m88+/9IuPqCKb6Stl+s2dnLtJNrjXBGJtsQG/sRpqsJz5x1/2nPJSRMsx9 5YfqbdrJSOFXDzZ8/r82HgQEtUvlSXNaXCa95ez0UkOG7+bDm2b3s0XahBQeLVCH0mw3RAQg r7xDAYKIrAwfHHmMTnBQDPJwVqxJjVNr7yBic4yfzVWGCGNE4DnOW0vcIeoyhy9vnIa3w1uZ 3iyY2Nsd7JxfKu1PRhCGwXzRw5TlfEsoRI7V9A8isUCoqE2Dzh3FvYHVeX4Us+bRL/oqareJ CIFqgYMyvHj7Q06kTKmauOe4Nf0l0qEkIuIzfoLJ3qr5UyXc2hLtWyT9Ir+lYlX9efqh7mOY qIws/H2t In-Reply-To: <20260803062056.1518070-3-ye.liu@linux.dev> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 14ADE180007 X-Stat-Signature: k9zwqzigtdp7yhfhbtnqhps75skkqex3 X-HE-Tag: 1785745416-205595 X-HE-Meta: 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 U8E0+d4S rthjR2QGNQobBG8LE+2slZ9Zhibe16Unld9drc/3NffJm50lSO6D7i1n7OapFYd0tFLj6SCiDREgFdutRdrVaLGZMPz5hzJ9k7e8xvbQF0i5sPNgfoyibjjRQXFtQPJzAgIn+TglNn3P5WUCzjrj+blmgHwJMXq0qILgLfN5DouG3Os5sjz9EbivyxvDwTpcmix8FYExXEuZGBF2IDd8APE8uQOTecy/4WOpFvaZsIHHxRXrqHWPoC+yvPst86mhs6akpl0oSvHqODnnj0duYInimIr8ounnqgQDv+o4jkluWMdM0VBAlA4ekFw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 8/3/26 08:20, Ye Liu wrote: > From: Ye Liu > > Page owner stack traces already contain kernel module names in the > "function+0xNN/0xNN [module]" format produced by %pS, but page_owner_sort > has no way to sort, cull, or filter by module. > > Extract the first module name from each record's stack trace using an > anchored regex that matches the stack trace frame format > "+0x[0-9a-f]+/0x[0-9a-f]+\\s*\\[([a-zA-Z0-9_-]+)\\]". > > The regex is anchored to the stack trace frame to avoid false matches on > kernel thread comm names such as [khugepaged] that appear in the record > header. The character class includes '-' so modules with hyphens > (e.g. aa-bb-cc) are correctly matched. > > Records whose stack traces contain no module frames are assigned "vmlinux". > > New options: > -M Sort by module name > --sort=mod Sort by module name (supports +/- prefix) > --cull=mod Cull (aggregate) by module name > --module Filter to records matching the given module(s) > > The module field is also printed in cull output when relevant. > > Signed-off-by: Ye Liu > --- Nothing jumped at me when skimming over it. -- Cheers, David