On Thu, 12 Mar 2020 11:07:15 -0700 (PDT) David Rientjes <rientjes@xxxxxxxxxx> wrote: > On Thu, 12 Mar 2020, Tetsuo Handa wrote: > > > > On Thu, 12 Mar 2020, Tetsuo Handa wrote: > > > > > If you have an alternate patch to try, we can test it. But since this > > > > > cond_resched() is needed anyway, I'm not sure it will change the result. > > > > > > > > schedule_timeout_killable(1) is an alternate patch to try; I don't think > > > > that this cond_resched() is needed anyway. > > > > > > > > > > You are suggesting schedule_timeout_killable(1) in shrink_node_memcgs()? > > > > > > > Andrew Morton also mentioned whether cond_resched() in shrink_node_memcgs() > > is enough. But like you mentioned, > > > > It passes our testing because this is where the allocator is looping while > the victim is trying to exit if only it could be scheduled. What happens if the allocator has SCHED_FIFO?
