The patch titled Subject: mm/hugetlb.c: fix warning on freeing hwpoisoned hugepage has been added to the -mm tree. Its filename is hwpoison-hugetlbfs-fix-warning-on-freeing-hwpoisoned-hugepage.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> Subject: mm/hugetlb.c: fix warning on freeing hwpoisoned hugepage Fix the warning from __list_del_entry() which is triggered when a process tries to do free_huge_page() for a hwpoisoned hugepage. Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx> Cc: Andi Kleen <andi.kleen@xxxxxxxxx> Cc: Tony Luck <tony.luck@xxxxxxxxx> Cc: Wu Fengguang <fengguang.wu@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/hugetlb.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff -puN mm/hugetlb.c~hwpoison-hugetlbfs-fix-warning-on-freeing-hwpoisoned-hugepage mm/hugetlb.c --- a/mm/hugetlb.c~hwpoison-hugetlbfs-fix-warning-on-freeing-hwpoisoned-hugepage +++ a/mm/hugetlb.c @@ -3178,7 +3178,13 @@ int dequeue_hwpoisoned_huge_page(struct spin_lock(&hugetlb_lock); if (is_hugepage_on_freelist(hpage)) { - list_del(&hpage->lru); + /* + * Hwpoisoned hugepage isn't linked to activelist or freelist, + * but dangling hpage->lru can trigger list-debug warnings + * (this happens when we call unpoison_memory() on it), + * so let it point to itself with list_del_init(). + */ + list_del_init(&hpage->lru); set_page_refcounted(hpage); h->free_huge_pages--; h->free_huge_pages_node[nid]--; _ Patches currently in -mm which might be from n-horiguchi@xxxxxxxxxxxxx are hwpoison-fix-action_result-to-print-out-dirty-clean.patch mm-print-out-information-of-file-affected-by-memory-error.patch hwpoison-hugetlbfs-fix-bad-pmd-warning-in-unmapping-hwpoisoned-hugepage.patch hwpoison-hugetlbfs-fix-rss-counter-warning.patch hwpoison-hugetlbfs-fix-rss-counter-warning-fix.patch hwpoison-hugetlbfs-fix-rss-counter-warning-fix-fix.patch hwpoison-hugetlbfs-fix-warning-on-freeing-hwpoisoned-hugepage.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html