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 A1D46D3CCAF for ; Thu, 15 Jan 2026 05:59:23 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id F1FB76B0089; Thu, 15 Jan 2026 00:59:22 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id F014D6B008A; Thu, 15 Jan 2026 00:59:22 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DF63C6B008C; Thu, 15 Jan 2026 00:59:22 -0500 (EST) 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 CF7946B0089 for ; Thu, 15 Jan 2026 00:59:22 -0500 (EST) Received: from smtpin10.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id E69BF1601C0 for ; Thu, 15 Jan 2026 05:59:21 +0000 (UTC) X-FDA: 84333145722.10.4D39C68 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf15.hostedemail.com (Postfix) with ESMTP id 5C373A0003 for ; Thu, 15 Jan 2026 05:59:20 +0000 (UTC) Authentication-Results: imf15.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=AGoi7q8K; dmarc=none; spf=pass (imf15.hostedemail.com: domain of akpm@linux-foundation.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1768456760; a=rsa-sha256; cv=none; b=2e/LYBnHdi+a2nd+F2Cadtq/AnTsefKmpF3eCNP/pEx3SqpRPelgpWqz4wzW/arySn/7gU u4Sr8OgkCfUaliM+aUXpIT5rH12lmeiLR9n4d/VcQeAYEcSGFc6bSD2MX0CyOTk8T2w1c3 txJ/sC6WddDKrSN9QJH6d2wTFUezYqY= ARC-Authentication-Results: i=1; imf15.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=AGoi7q8K; dmarc=none; spf=pass (imf15.hostedemail.com: domain of akpm@linux-foundation.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1768456760; 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=oPeOBbGjUgU8hI2afV6Psuceb47dGgERhJjhIDKJa+E=; b=uOPhgOkz1Cxs1yXIWnkCShdCyuIjh7Vk9bCLyVHmH+RWXsHBmqgpezijnhcYOLP1zZXoNr 9cVAuP08CTNovWRGPySROOagFS3FrkmyruDpgn9e8TPw9xaAwzfuUJKBOF/TwIv3v2nJ+X FiU9hNTHbLm4+z4iJznOOmvtsG4OHxQ= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 005BD40790; Thu, 15 Jan 2026 05:59:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1DA83C116D0; Thu, 15 Jan 2026 05:59:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1768456758; bh=WaB1WfcSyPRy13gJone2ay7mYx/vRaB7yTVcyMuNWD0=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=AGoi7q8K05EyGTE0Hdv5rTXzye2UijvczBaSBIK5VLU/5fA47DnK09MaTwimMwonz 4EC4iUpaoSchwE6AceY8N7D9sUEtMLD+noQaqZ/lyqcenW95Y6slunLW0vEGC/B54b K/+k2KHaucsaCGfgumma9d+s8LdgXkUj2RdbQ9Mo= Date: Wed, 14 Jan 2026 21:59:17 -0800 From: Andrew Morton To: Qi Zheng Cc: hannes@cmpxchg.org, hughd@google.com, mhocko@suse.com, roman.gushchin@linux.dev, shakeel.butt@linux.dev, muchun.song@linux.dev, david@kernel.org, lorenzo.stoakes@oracle.com, ziy@nvidia.com, harry.yoo@oracle.com, yosry.ahmed@linux.dev, imran.f.khan@oracle.com, kamalesh.babulal@oracle.com, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, chenridong@huaweicloud.com, mkoutny@suse.com, hamzamahfooz@linux.microsoft.com, apais@linux.microsoft.com, lance.yang@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, Qi Zheng Subject: Re: [PATCH v3 00/30] Eliminate Dying Memory Cgroup Message-Id: <20260114215917.8eee7b9fa4da37305b74d6f2@linux-foundation.org> In-Reply-To: <98819615-5001-45f6-8e63-c4220a242257@linux.dev> References: <20260114095839.eabf8106e97bf3bcf0917341@linux-foundation.org> <98819615-5001-45f6-8e63-c4220a242257@linux.dev> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Stat-Signature: eocpp3crbqexiqzuwox8juba7a3i9nnh X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 5C373A0003 X-HE-Tag: 1768456760-965070 X-HE-Meta: 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, 15 Jan 2026 11:52:04 +0800 Qi Zheng wrote: > > > On 1/15/26 1:58 AM, Andrew Morton wrote: > > On Wed, 14 Jan 2026 19:26:43 +0800 Qi Zheng wrote: > > > >> This patchset is intended to transfer the LRU pages to the object cgroup > >> without holding a reference to the original memory cgroup in order to > >> address the issue of the dying memory cgroup. > > > > Thanks. I'll add this to mm.git for testing. A patchset of this > > magnitude at -rc5 is a little ambitious, but Linus is giving us an rc8 > > so let's see. > > > > I'll suppress the usual added-to-mm email spray. > > Hi Andrew, > > The issue reported by syzbot needs to be addressed. If you want to test > this patchset, would you like me to provide a fix patch, or would you > prefer me to update to v4? A fix would be preferred if that's reasonable - it's a lot of patches be resending!