On Fri, Apr 2, 2021 at 1:15 AM Shakeel Butt <shakeelb@xxxxxxxxxx> wrote: > > On Thu, Apr 1, 2021 at 9:08 AM Muchun Song <songmuchun@xxxxxxxxxxxxx> wrote: > > > [...] > > > The zombie issue is a pretty urgent concern that has caused several > > > production emergencies now. It needs a fix sooner rather than later. > > > > Thank you very much for clarifying the problem for me. I do agree > > with you. This issue should be fixed ASAP. Using objcg is a good > > choice. Dying objcg should not be a problem. Because the size of > > objcg is so small compared to memcg. > > > > Just wanted to say out loud that yes this patchset will reduce the > memcg zombie issue but this is not the final destination. We should > continue the discussions on sharing/reusing scenarios. Yeah. Reducing the zombie memcg is not the final destination. But it is an optimization. OK. The discussions about sharing/reusing is also welcome. > > Muchun, can you please also CC Hugh Dickins and Alex Shi in the next > version of your patchset? No problem. I will cc Alex Shi in the next version.