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]) by smtp.lore.kernel.org (Postfix) with ESMTP id 51EBEC83F27 for ; Tue, 22 Jul 2025 15:30:15 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C49306B00A7; Tue, 22 Jul 2025 11:30:14 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C20DC6B00A9; Tue, 22 Jul 2025 11:30:14 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B0F4B6B00AA; Tue, 22 Jul 2025 11:30:14 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 9F63D6B00A7 for ; Tue, 22 Jul 2025 11:30:14 -0400 (EDT) Received: from smtpin07.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 18D40112996 for ; Tue, 22 Jul 2025 15:30:14 +0000 (UTC) X-FDA: 83692286748.07.1B97523 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by imf24.hostedemail.com (Postfix) with ESMTP id 9E0E018000C for ; Tue, 22 Jul 2025 15:30:11 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=T1pzBQIU; dmarc=pass (policy=quarantine) header.from=redhat.com; spf=pass (imf24.hostedemail.com: domain of david@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=david@redhat.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1753198211; a=rsa-sha256; cv=none; b=mavmuZaZmAXx0aBAsd7ggR+utqbbUhS8vRUYUiKAn3RK2GNUkyd+iqbbaie1dayiRydfCD TwuSshJN4vo8j2bQzIlgMx9GYV8Z98uLFM+C2QC7pRZw5prF71uxAFAghZQ63E17cscyQz fux4y5j5VD144ubyUBJ7AgbmHwlqxv4= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=T1pzBQIU; dmarc=pass (policy=quarantine) header.from=redhat.com; spf=pass (imf24.hostedemail.com: domain of david@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=david@redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1753198211; 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=xG23lfY5KrU0OHXZobKzS6Gwy0oCh0at7BY2Y5zGEO8=; b=GvmC6Xs2dOqE3S0hzFXWG/cZvP5uz8elso2nJHujw7YbD0on6QKmDMQnpI5o7sxzVIkhpm kZFAkzYWeQ7QFc5IgH+RMSQA+89Io1t9sHzl5lkCxSFlRSIbSFvc4z8z90x7OHlK+DIQri f2FKHiAFQ68neKhTjKD9iWZnwjDWZIE= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1753198211; h=from:from: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:autocrypt:autocrypt; bh=xG23lfY5KrU0OHXZobKzS6Gwy0oCh0at7BY2Y5zGEO8=; b=T1pzBQIUYI7opkW7POCi2X2zPQsextE+GapXhnoG2IDltf0PnIeuv1i2h4TP3vX83THyha KLpOgQgb68g2nbby6xnPciwMRY27qQgPV8COZexe+LFyvMgUIAVApdrbbz96AtY30/nYeU 5hPXh652PfO7RE25RTszzZFYNUxxqRk= Received: from mail-wr1-f72.google.com (mail-wr1-f72.google.com [209.85.221.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-507-KkFEkbyLO9GbpkaY5_Ejew-1; Tue, 22 Jul 2025 11:30:09 -0400 X-MC-Unique: KkFEkbyLO9GbpkaY5_Ejew-1 X-Mimecast-MFC-AGG-ID: KkFEkbyLO9GbpkaY5_Ejew_1753198208 Received: by mail-wr1-f72.google.com with SMTP id ffacd0b85a97d-3b604541741so4234953f8f.3 for ; Tue, 22 Jul 2025 08:30:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1753198208; x=1753803008; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:from:references:cc:to:subject:user-agent :mime-version:date:message-id:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=xG23lfY5KrU0OHXZobKzS6Gwy0oCh0at7BY2Y5zGEO8=; b=hcbblelICO/wayty3l/bKYttGpc3qimsel/xjq7yfnCjOrVr8CYorvr6Q8wNj5tuy4 SCylxeczFsmUuKAJblgNYeLdcxbuqm6A4+8vzVbep0giyp1/LlnE3KmN+KRXmoKn/7g2 SumKrhan89633ujfoS7yG8JuT5xCSVmwBOZIVaM96UrBSt01hhIxvOghUDdO2HGnHKVz GgOxfQ+r8QZkMry6Nvx7oc2Sp94nwJAL3bk2voNh/1G/iF1zNj4QQEao1TcIxMBUnZCb BrpZITzLaGBKilv8LjSjjZQLJuSs2t0RfG1JIe4K3elHSBzROAsVIydc319RMfxFc1mP 1A/w== X-Forwarded-Encrypted: i=1; AJvYcCWhuLAIKxQeK24qa6dM2EtWiwdm36QyrNJaxEldUSNbebn7p2KUtSySmXdiRILG3qqSusOCdEnBkw==@kvack.org X-Gm-Message-State: AOJu0YyO4s1kAC/c+oOcHRxAcap5ZR5RT4kjk2sG5LJi5YHG8eY17Pcg 8KBGRsWXQGkUwWTEkyBpivrfLsQS1IPoVcci6FMfUcXg2Rsz/c0HXb9MuACzSR3guyEUexH0usl LM0wilp/KqM13YKHXYel4jHmxJcQn+PZALNL7eCtv447xIipKDs1DWhibTCb89PI= X-Gm-Gg: ASbGnctrHU/7U9rC2MZr9SSgoVLIdtBbzvduH36CXhNC6lpZMElA9PXsMxC5tAsnCbc ToOcA7FCqx1vYVXKnEF9HC8FvIzlQrbf3SSnzttjqLtejt3Ov//xhDdrZhpnDtjpQBoQZkqbFD2 hWtU8YsC1iZKwJceZA27FcHMsk/GJYGOqazojcz8hd2YOxh/PerrRQuXC4HuDR2yvsWJsASdLOX 1elr/Ep3TBt03S2f5KLpsDO3fYMnuN71TzjXRQQjwNSxVlq/OT5TaRdT1fLloMa36JKZlWSVUdF mmPaSvKOiSqN0kTq7e3MGeRXmtrJh9bSd5bwxOcfJJhOTw8FJc7Jz4iu8GocNDNzfcRqtLxtUtb CoMRVYkEFpPAXdd0r0wIsAGmZUdJWBtr9g9gdeGz9lfWTSK39nMLah8ay+SgszxGpDRA= X-Received: by 2002:a05:6000:144e:b0:3b7:649a:6a7b with SMTP id ffacd0b85a97d-3b7649a6d30mr2499807f8f.49.1753198208262; Tue, 22 Jul 2025 08:30:08 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFnc7AP+yn6412+xgDHR+YsxZYNcagXCtBTKqNj/IpetAGqIFvRymJSYcZahZiNdQmEI4OZsQ== X-Received: by 2002:a05:6000:144e:b0:3b7:649a:6a7b with SMTP id ffacd0b85a97d-3b7649a6d30mr2499770f8f.49.1753198207795; Tue, 22 Jul 2025 08:30:07 -0700 (PDT) Received: from ?IPV6:2003:d8:2f28:de00:1efe:3ea4:63ba:1713? (p200300d82f28de001efe3ea463ba1713.dip0.t-ipconnect.de. [2003:d8:2f28:de00:1efe:3ea4:63ba:1713]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3b61ca25443sm13850868f8f.9.2025.07.22.08.30.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 22 Jul 2025 08:30:07 -0700 (PDT) Message-ID: Date: Tue, 22 Jul 2025 17:30:06 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/2] mm/memory_hotplug: fix hwpoisoned large folio handling in do_migrate_range To: Andrew Morton Cc: Zi Yan , "Pankaj Raghav (Samsung)" , Matthew Wilcox , Luis Chamberlain , Jinjiang Tu , Oscar Salvador , linmiaohe@huawei.com, mhocko@kernel.org, linux-mm@kvack.org, wangkefeng.wang@huawei.com References: <61325284-d1d6-a973-8aa7-c0f226db95fa@huawei.com> <7b2c054b-fc33-4127-aaa9-9edf6a63e142@redhat.com> <924d9d25-e53c-f159-6ec0-e1fd4e96d6e2@huawei.com> <4c5d4fd5-5582-11d8-9fee-24828ac1913d@huawei.com> <8c9719f0-c072-40bb-b7f6-6f2cc41a31dc@redhat.com> <1D589FE5-3515-4ED5-B12E-D5CE23BA5D13@nvidia.com> <641F5B0B-2B48-46FA-AC58-3A8A4BEB1448@nvidia.com> <3702f6b0-27a9-4ca1-adbd-fb1e2985b2d3@redhat.com> <345f7ae6-b2d6-44cd-b8b6-2bdd4b33e9d6@redhat.com> <66bc7274-ec2a-423a-8094-b8d4cc9438fe@redhat.com> <20250719192300.9e32c35ddc49f11c7954306b@linux-foundation.org> From: David Hildenbrand Autocrypt: addr=david@redhat.com; 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 B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAmgsLPQFCRvGjuMACgkQTd4Q 9wD/g1o0bxAAqYC7gTyGj5rZwvy1VesF6YoQncH0yI79lvXUYOX+Nngko4v4dTlOQvrd/vhb 02e9FtpA1CxgwdgIPFKIuXvdSyXAp0xXuIuRPQYbgNriQFkaBlHe9mSf8O09J3SCVa/5ezKM OLW/OONSV/Fr2VI1wxAYj3/Rb+U6rpzqIQ3Uh/5Rjmla6pTl7Z9/o1zKlVOX1SxVGSrlXhqt kwdbjdj/csSzoAbUF/duDuhyEl11/xStm/lBMzVuf3ZhV5SSgLAflLBo4l6mR5RolpPv5wad GpYS/hm7HsmEA0PBAPNb5DvZQ7vNaX23FlgylSXyv72UVsObHsu6pT4sfoxvJ5nJxvzGi69U s1uryvlAfS6E+D5ULrV35taTwSpcBAh0/RqRbV0mTc57vvAoXofBDcs3Z30IReFS34QSpjvl Hxbe7itHGuuhEVM1qmq2U72ezOQ7MzADbwCtn+yGeISQqeFn9QMAZVAkXsc9Wp0SW/WQKb76 FkSRalBZcc2vXM0VqhFVzTb6iNqYXqVKyuPKwhBunhTt6XnIfhpRgqveCPNIasSX05VQR6/a OBHZX3seTikp7A1z9iZIsdtJxB88dGkpeMj6qJ5RLzUsPUVPodEcz1B5aTEbYK6428H8MeLq NFPwmknOlDzQNC6RND8Ez7YEhzqvw7263MojcmmPcLelYbfOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCaCwtJQUJG8aPFAAKCRBN3hD3AP+DWlDnD/4k2TW+HyOOOePVm23F5HOhNNd7nNv3 Vq2cLcW1DteHUdxMO0X+zqrKDHI5hgnE/E2QH9jyV8mB8l/ndElobciaJcbl1cM43vVzPIWn 01vW62oxUNtEvzLLxGLPTrnMxWdZgxr7ACCWKUnMGE2E8eca0cT2pnIJoQRz242xqe/nYxBB /BAK+dsxHIfcQzl88G83oaO7vb7s/cWMYRKOg+WIgp0MJ8DO2IU5JmUtyJB+V3YzzM4cMic3 bNn8nHjTWw/9+QQ5vg3TXHZ5XMu9mtfw2La3bHJ6AybL0DvEkdGxk6YHqJVEukciLMWDWqQQ RtbBhqcprgUxipNvdn9KwNpGciM+hNtM9kf9gt0fjv79l/FiSw6KbCPX9b636GzgNy0Ev2UV m00EtcpRXXMlEpbP4V947ufWVK2Mz7RFUfU4+ETDd1scMQDHzrXItryHLZWhopPI4Z+ps0rB CQHfSpl+wG4XbJJu1D8/Ww3FsO42TMFrNr2/cmqwuUZ0a0uxrpkNYrsGjkEu7a+9MheyTzcm vyU2knz5/stkTN2LKz5REqOe24oRnypjpAfaoxRYXs+F8wml519InWlwCra49IUSxD1hXPxO WBe5lqcozu9LpNDH/brVSzHCSb7vjNGvvSVESDuoiHK8gNlf0v+epy5WYd7CGAgODPvDShGN g3eXuA== Organization: Red Hat In-Reply-To: <20250719192300.9e32c35ddc49f11c7954306b@linux-foundation.org> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: YhCE_8sE2lu-rtjN4Ce2ipd56NpoXM0oeBAL1Da_gFA_1753198208 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 9E0E018000C X-Stat-Signature: 8d81f4533wh8mxs5tybi4iox3wfbrte3 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1753198211-562255 X-HE-Meta: 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 6yg1Q4Xu 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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 20.07.25 04:23, Andrew Morton wrote: > > I continue to retain the original patch in mm-hotfixes as part of > akpm's lame bug-tracking system. 3 weeks in -next. > > And I just added a cc:stable to it because December 2018. > > I don't expect many real-world users will be putting fake delays in > memory_failure(), but it's there. > > So what do we do here? Add a TODO, merge it under the > better-than-it-was-before theory and move on? I would feel better if we could just not fail memory offlining. Memory offlining is documented to loop forever if something bad happens, and user space can cancel it. -- Cheers, David / dhildenb