On Tue, 14 Dec 2021 11:11:54 +0100 Michal Hocko <mhocko@xxxxxxxx> wrote: > > I need some clarification here. It sounds like memoryless nodes work on > > x86, but hotplug + memoryless nodes isn't a supported use case or you're > > introducing it as a new use case? > > > > If this is a new use case, then I'm inclined to say this patch should > > NOT go in and a proper fix should be implemented on hotplug's side. I > > don't want to be in the business of having/seeing this conversation > > reoccur because we just papered over this issue in percpu. > > The patch still seems to be in the mmotm tree. I have sent a different > fix candidate [1] which should be more robust and cover also other potential > places. > > [1] http://lkml.kernel.org/r/20211214100732.26335-1-mhocko@xxxxxxxxxx Is cool, I'm paying attention. We do want something short and simple for backporting to -stable (like Alexey's patch) so please bear that in mind while preparing an alternative.
