diff --git a/mm/huge_memory.c b/mm/huge_memory.c index fceaf965f264..24cb81c8d838 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -4120,6 +4120,9 @@ static bool thp_underused(struct folio *folio) if (khugepaged_max_ptes_none == HPAGE_PMD_NR - 1) return false; + if (folio_contain_hwpoisoned_page(folio)) + return false; + for (i = 0; i < folio_nr_pages(folio); i++) { if (pages_identical(folio_page(folio, i), ZERO_PAGE(0))) { if (++num_zero_pages > khugepaged_max_ptes_none) diff --git a/mm/migrate.c b/mm/migrate.c index 4ff6eea0ef7e..50a20ad5c752 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -302,8 +302,9 @@ static bool try_to_map_unused_to_zeropage(struct page_vma_mapped_walk *pvmw, struct page *page = folio_page(folio, idx); pte_t newpte; - if (PageCompound(page)) + if (PageCompound(page) || PageHWPoison(page)) return false; + VM_BUG_ON_PAGE(!PageAnon(page), page); VM_BUG_ON_PAGE(!PageLocked(page), page); VM_BUG_ON_PAGE(pte_present(old_pte), page);