On 07/15, Shayan Pooya wrote: > > >> --- x/kernel/sched/core.c > >> +++ x/kernel/sched/core.c > >> @@ -2793,8 +2793,11 @@ asmlinkage __visible void schedule_tail(struct > >> task_struct *prev) > >> balance_callback(rq); > >> preempt_enable(); > >> > >> - if (current->set_child_tid) > >> + if (current->set_child_tid) { > >> + mem_cgroup_oom_enable(); > >> put_user(task_pid_vnr(current), current->set_child_tid); > >> + mem_cgroup_oom_disable(); > >> + } > >> } > >> > >> /* > > I tried this patch and I still see the same stuck processes (assuming > that's what you were curious about).
Of course. Because I am stupid. Firtsly, I forgot to include another change in fault.c. And now I see that change was wrong anyway. I'll try to make another debugging patch today later, but let me repeat that it won't fix the real problem anyway. Thanks, and sorry for wasting your time. Oleg.