Re: [PATCH v1 2/4] mm: Expose abnormal new_pte during move_ptes

On Fri, 30 May 2025 09:24:54 +0800 Pu Lehui pulehui@huaweicloud.com wrote:

...

check that patch [1/4] is working? Perhaps VM_WARN_ON_ONCE() would be

Agree, should I respin one more?

That's OK, I added this:

--- a/mm/mremap.c~mm-expose-abnormal-new_pte-during-move_ptes-fix +++ a/mm/mremap.c @@ -237,7 +237,7 @@ static int move_ptes(struct pagetable_mo

for (; old_addr < old_end; old_pte++, old_addr += PAGE_SIZE, new_pte++, new_addr += PAGE_SIZE) { - WARN_ON_ONCE(!pte_none(*new_pte)); + VM_WARN_ON_ONCE(!pte_none(*new_pte));

if (pte_none(ptep_get(old_pte))) continue; _