On Fri 06-04-18 13:36:00, Andrew Morton wrote: [...] > > Kernels before 4.11 do not see this behavior. I've tracked the issue to the > > following commit: > > > > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=726d061fbd3658e4bfeffa1b8e82da97de2ca4dd Thanks for the report! This should be fixed by 1c610d5f93c7 ("mm/vmscan: wake up flushers for legacy cgroups too") -- Michal Hocko SUSE Labs