Hi Andrew, This patch is superseded by latter patch so don't merge it in next. Just the latter is fine. Thanks, https://lore.kernel.org/all/20220819094005.2928241-1-liushixin2@xxxxxxxxxx/T/#u On 2022/8/18 21:21, Liu Shixin wrote: > The vmemmap pages is marked by kmemleak when allocated from memblock. > Remove it from kmemleak when free the page. Otherwise, when we reuse the > page, kmemleak may report such an error and then stop working. > > kmemleak: Cannot insert 0xffff98fb6eab3d40 into the object search tree (overlaps existing) > kmemleak: Kernel memory leak detector disabled > kmemleak: Object 0xffff98fb6be00000 (size 335544320): > kmemleak: comm "swapper", pid 0, jiffies 4294892296 > kmemleak: min_count = 0 > kmemleak: count = 0 > kmemleak: flags = 0x1 > kmemleak: checksum = 0 > kmemleak: backtrace: > > Fixes: f41f2ed43ca5 ("mm: hugetlb: free the vmemmap pages associated with each HugeTLB page") > Signed-off-by: Liu Shixin <liushixin2@xxxxxxxxxx> > --- > include/linux/bootmem_info.h | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/include/linux/bootmem_info.h b/include/linux/bootmem_info.h > index cc35d010fa94..899bc56948f7 100644 > --- a/include/linux/bootmem_info.h > +++ b/include/linux/bootmem_info.h > @@ -3,6 +3,7 @@ > #define __LINUX_BOOTMEM_INFO_H > > #include <linux/mm.h> > +#include <linux/kmemleak.h> > > /* > * Types for free bootmem stored in page->lru.next. These have to be in > @@ -38,9 +39,10 @@ static inline void free_bootmem_page(struct page *page) > */ > VM_BUG_ON_PAGE(page_ref_count(page) != 2, page); > > - if (magic == SECTION_INFO || magic == MIX_SECTION_INFO) > + if (magic == SECTION_INFO || magic == MIX_SECTION_INFO) { > + kmemleak_free_part(page_to_virt(page), PAGE_SIZE); > put_page_bootmem(page); > - else > + } else > VM_BUG_ON_PAGE(1, page); > } > #else
