It is better to keep page mapping info when free_huge_page() hit the VM_BUG_ON_PAGE, so we can get more infomation from the coredump for further analysis. Signed-off-by: Yongkai Wu --- mm/hugetlb.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index c007fb5..ba693bb 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1248,10 +1248,11 @@ void free_huge_page(struct page *page) (struct hugepage_subpool *)page_private(page); bool restore_reserve; + VM_BUG_ON_PAGE(page_count(page), page); + VM_BUG_ON_PAGE(page_mapcount(page), page); + set_page_private(page, 0); page->mapping = NULL; - VM_BUG_ON_PAGE(page_count(page), page); - VM_BUG_ON_PAGE(page_mapcount(page), page); restore_reserve = PagePrivate(page); ClearPagePrivate(page); -- 1.8.3.1