Re: [PATCH -next v2] bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem

[Muchun Song]

> On Aug 19, 2022, at 17:40, Liu Shixin <liushixin2@xxxxxxxxxx> 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>

Thanks for fixing this.

Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>