On Tue, 18 Feb 2025 21:17:46 -0500 Luiz Capitulino <luizcap@xxxxxxxxxx> wrote: > To fix this, this series introduces a new iteration API for page extension > objects. The API checks if the next page extension object can be retrieved > from the current section or if it needs to look up for it in another > section. > > ... A regression since 6.12, so we should backport the fix. > ... > > include/linux/page_ext.h | 67 +++++++++++++++++++++++++++++++++++++--- > mm/page_ext.c | 48 ++++++++++++++++++++++++++++ > mm/page_owner.c | 61 +++++++++++++++++------------------- > mm/page_table_check.c | 39 +++++++---------------- > 4 files changed, 152 insertions(+), 63 deletions(-) That's a lot to backport! Is there some quick-n-dirty fixup we can apply for the sake of -stable kernels, then work on this long-term approach for future kernels?
