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[2001:1c00:3406:8400:a56b:f885:268a:3912]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8edae3c255sm91818866b.62.2026.02.06.08.16.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Feb 2026 08:16:33 -0800 (PST) From: Boudewijn van der Heide To: ziy@nvidia.com Cc: Liam.Howlett@oracle.com, akpm@linux-foundation.org, boudewijn@delta-utec.com, david@redhat.com, duenwen@google.com, hannes@cmpxchg.org, harry.yoo@oracle.com, jackmanb@google.com, jane.chu@oracle.com, jiaqiyan@google.com, jthoughton@google.com, linmiaohe@huawei.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, mhocko@suse.com, muchun.song@linux.dev, nao.horiguchi@gmail.com, osalvador@suse.de, rientjes@google.com, rppt@kernel.org, surenb@google.com, tony.luck@intel.com, vbabka@suse.cz, wangkefeng.wang@huawei.com, william.roche@oracle.com, willy@infradead.org Subject: Re: [PATCH v4 0/3] Only free healthy pages in high-order has_hwpoisoned folio Date: Fri, 6 Feb 2026 17:16:28 +0100 Message-ID: <20260206161628.78161-1-boudewijn@delta-utec.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <2C382EC0-0FB7-4882-8B87-E467454178D2@nvidia.com> References: <2C382EC0-0FB7-4882-8B87-E467454178D2@nvidia.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam11 X-Stat-Signature: dfxm5ygp7d5rcoppyt7xtb8rzrawdtyc X-Rspam-User: X-Rspamd-Queue-Id: A933940006 X-HE-Tag: 1770394595-687104 X-HE-Meta: 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 cDCW/qmn 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Yan, Zi, > No, split code[1] sets has_hwpoison flag when it split a folio to a non-0 order > folios. If you do not see it in your kernel code, you might need to update > your kernel to latest stable one or one newer than or equal to 6.18. Thanks for pointing out the split code. I went through the callstacks again and I agree it propagates the flag correctly. I missed this initially. Kind regards, Boudewijn