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Received: from banye.tbsite.net(mailfrom:xiangzao@linux.alibaba.com fp:SMTPD_---0XDdhbck_1793102934 cluster:ay36) by smtp.aliyun-inc.com; Tue, 27 Oct 2026 20:09:02 +0800 From: Yuanhe Shu To: david@kernel.org Cc: akpm@linux-foundation.org, "Huang, Ying" , "Kaitao Cheng" , vbabka@kernel.org, linmiaohe@huawei.com, nao.horiguchi@gmail.com, ziy@nvidia.com, wangkefeng.wang@huawei.com, tujinjiang@huawei.com, mgorman@techsingularity.net, chengkaitao@kylinos.cn, muchun.song@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, xiangzao@linux.alibaba.com Subject: Re: [PATCH v2 0/2] mm: don't migrate folios containing hwpoisoned pages Date: Tue, 27 Oct 2026 20:08:54 +0800 Message-ID: <20261027120854.1213156-1-xiangzao@linux.alibaba.com> X-Mailer: git-send-email 2.43.7 In-Reply-To: <18602383-2326-4e54-8dec-bb695ae8878e@kernel.org> References: <20261026025552.1427901-1-xiangzao@linux.alibaba.com> <18602383-2326-4e54-8dec-bb695ae8878e@kernel.org> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 566A5A0003 X-Stat-Signature: y4rgqonchptoex8whu5bdf19cmi8xnef X-Spam-Status: No, score=-16.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS,UNPARSEABLE_RELAY, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=4.0.1 X-Rspam-User: X-HE-Tag: 1793102946-861059 X-HE-Meta: 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 lwBN8yp5 Bs69mor5xWHp3dU9j7JS4SpfCeJO0c62GOznhnhwjE92okNFJQENIcgqNJtZ28Ij/BwGzGuFHPnYfkPfTqnaQpX27beODt16XxssyK83fjowW7VsTUxqMPqLctlmNgeh4uEXxEzZqBmoJcI0xn2pJpuNf0NkDFjf6ZPUpEg6KoLv4TIDEJDeiKoM6ZlS6KrBRfqUSKrMdyI4mF0LvaisxQAPStK27+4/fXPagEjnp598Doce9GIX/R3g23KQ7+x+CDlSNZ59RrfHkiMAtwZzYLLZ548DDHMucCQj5xQbGcFkop8K9pl/y4Bt6Xv5l0Ntzt/GJuZ5OFEE8phWbrMNYZfoWWA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 The fallback check does not compile on x86_64. There, folio_mc_copy() only catches a synchronous #MC at the copy, and software-injected poison never triggers one. The bug was reproduced and measured on x86_64, so I think the series is still needed on the arch it was found on. -- Yuanhe