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Nkd1kV6wy9NJJa6H672kyAr+3BjLK/ewqPVG9uWUGLEndfWB0IamuNoZEQoFHR6CRNwq6l/MhdI le/2SzjCkDQYXFcmF0pcJTFcMGDug6o0auSvucAwu7DfXCRx4pRgWZauDYLjrQH/eX2sZwjbvIt PA+hjYrpl/STc2PKM6eg7WwJn8ZNhuWAgReVnwoDJ0YK7C/pmgMNf8w2djMjCxePTzcsW/wJHIt 5lyipKM7OhYdokcnkupE26mGy3c/p0NYWXThM8wGIQ8A17oFFrNtwy34wts7Fq1bRE5mmNUNhqJ tsylF/fNU1SYndVr/lQ== X-Proofpoint-GUID: L1-EB3yGsOvZmOO6Sgjx-COJCW9vShFH X-Authority-Analysis: v=2.4 cv=cZrfb3DM c=1 sm=1 tr=0 ts=6978c095 b=1 cx=c_pps a=WeWmnZmh0fydH62SvGsd2A==:117 a=WeWmnZmh0fydH62SvGsd2A==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=xqWC_Br6kY4A:10 a=kj9zAlcOel0A:10 a=vUbySO9Y5rIA:10 a=GoEa3M9JfhUA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=JfrnYn6hAAAA:8 a=yPCof4ZbAAAA:8 a=1XWaLZrsAAAA:8 a=i0EeH86SAAAA:8 a=YLQEXtXBj_6quF9Ign8A:9 a=CjuIK1q_8ugA:10 a=1CNFftbPRP8L7MoqJWF3:22 X-Proofpoint-ORIG-GUID: L1-EB3yGsOvZmOO6Sgjx-COJCW9vShFH On Tue, Jan 20, 2026 at 04:22:34PM -0700, Jane Chu wrote: > When a hugetlb folio is being poisoned again, try_memory_failure_hugetlb() > passed head pfn to kill_accessing_process(), that is not right. > The precise pfn of the poisoned page should be used in order to > determine the precise vaddr as the SIGBUS payload. > > This issue has already been taken care of in the normal path, that is, > hwpoison_user_mappings(), see [1][2]. Further more, for [3] to work > correctly in the hugetlb repoisoning case, it's essential to inform > VM the precise poisoned page, not the head page. > > [1] https://lkml.kernel.org/r/20231218135837.3310403-1-willy@infradead.org > [2] https://lkml.kernel.org/r/20250224211445.2663312-1-jane.chu@oracle.com > [3] https://lore.kernel.org/lkml/20251116013223.1557158-1-jiaqiyan@google.com/ > > Cc: > Signed-off-by: Jane Chu > Reviewed-by: Liam R. Howlett > Acked-by: Miaohe Lin > --- FWIW, looks good to me, Reviewed-by: Harry Yoo -- Cheers, Harry / Hyeonggon