On Wed, Sep 07, 2022 at 05:43:31AM -1000, Tejun Heo wrote: > Hello, > > On Fri, Sep 02, 2022 at 02:29:50AM +0000, Yafang Shao wrote: > ... > > This patchset tries to resolve the above two issues by introducing a > > selectable memcg to limit the bpf memory. Currently we only allow to > > select its ancestor to avoid breaking the memcg hierarchy further. > > Possible use cases of the selectable memcg as follows, > > As discussed in the following thread, there are clear downsides to an > interface which requires the users to specify the cgroups directly. > > https://lkml.kernel.org/r/YwNold0GMOappUxc@xxxxxxxxxxxxxxx > > So, I don't really think this is an interface we wanna go for. I was hoping > to hear more from memcg folks in the above thread. Maybe ping them in that > thread and continue there? Ah, another thing. If the memcg accounting is breaking things right now, we can easily introduce a memcg disable flag for bpf memory. That should help alleviating the immediate breakage while we figure this out. Thanks. -- tejun