On Thu, 28 Mar 2024 23:39:33 PDT (-0700), alex@xxxxxxxx wrote:
Hi Oscar,
On 26/03/2024 07:30, Oscar Salvador wrote:
This series consists of a refactoring/correctness of updating the metadata
of tail pages and a couple of fixups for the refcounting part.
From this series on, instead of counting the stacks, we count the outstanding
nr_base_pages each stack has, which gives us a much better memory overview.
The other fixup is for the migration part.
A more detailed explanation can be found in the changelog of the respective
patches.
Oscar Salvador (3):
mm,page_owner: Update metada for tail pages
mm,page_owner: Fix refcount imbalance
mm,page_owner: Fix accounting of pages when migrating
Documentation/mm/page_owner.rst | 73 +++++++------
mm/page_owner.c | 184 +++++++++++++++++++-------------
2 files changed, 146 insertions(+), 111 deletions(-)
This fixes the following report from syzbot:
https://lore.kernel.org/linux-riscv/00000000000070a2660614b83885@xxxxxxxxxx/T/#t
So you can add:
Tested-by: Alexandre Ghiti <alexghiti@xxxxxxxxxxxx>
Acked-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx>
in case that helps any, but I think this is one for the MM folks Thanks
for chasing down the fix!
Thanks,
Alex
