On Wed 26-04-23 13:39:19, Yosry Ahmed wrote:
> Commit c8713d0b2312 ("mm: memcontrol: dump memory.stat during cgroup
> OOM") made sure we dump all the stats in memory.stat during a cgroup
> OOM, but it also introduced a slight behavioral change. The code used to
> print the non-hierarchical v1 cgroup stats for the entire cgroup
> subtree, not it only prints the v2 cgroup stats for the cgroup under
> OOM.
>
> Although v2 stats are a superset of v1 stats, some of them have
> different naming. We also lost the non-hierarchical stats for the cgroup
> under OOM in v1.
Why is that a problem worth solving? It would be also nice to add an
example of the oom report before and after the patch.
--
Michal Hocko
SUSE Labs
