On 2018/07/31 4:10, Michal Hocko wrote: > Since should_reclaim_retry() should be a natural reschedule point, > let's do the short sleep for PF_WQ_WORKER threads unconditionally in > order to guarantee that other pending work items are started. This will > workaround this problem and it is less fragile than hunting down when > the sleep is missed. E.g. we used to have a sleeping point in the oom > path but this has been removed recently because it caused other issues. > Having a single sleeping point is more robust. linux.git has not removed the sleeping point in the OOM path yet. Since removing the sleeping point in the OOM path can mitigate CVE-2016-10723, please do so immediately. (And that change will conflict with Roman's cgroup aware OOM killer patchset. But it should be easy to rebase.)
