On Wed, Oct 20, 2021 at 01:22:06PM +0800, Quanyang Wang <quanyang.wang@xxxxxxxxxxxxx> wrote: > > If only precpu_ref data is leaked, it is fine to add "Fixes: 2b0d3d3e4fcf", > > I thought cgroup_bpf_release() needs to release more for root cgroup, but > > looks not true. > For now, I can only observe that precpu_ref data is leaked when running ltp > testsuite. I assume you refer to ref->data. I considered the ref->percpu_count_ptr allocated with __alloc_percpu_gfp(). Could it be that kmemleak won't detect leaked percpu allocations? (The patch you sent resolves this as well, I'm just curious.) Michal
