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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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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