On Wed, Sep 06, 2017 at 10:34:13AM +0200, Michal Hocko wrote: > On Tue 05-09-17 21:23:57, Roman Gushchin wrote: > > On Tue, Sep 05, 2017 at 04:57:00PM +0200, Michal Hocko wrote: > [...] > > > > @@ -810,6 +810,9 @@ static void __oom_kill_process(struct task_struct > > > > *victim) > > > > struct mm_struct *mm; > > > > bool can_oom_reap = true; > > > > > > > > + if (is_global_init(victim) || (victim->flags & PF_KTHREAD)) > > > > + return; > > > > + > > > > > > This will leak a reference to the victim AFACS > > > > Good catch! > > I didn't fix this after moving reference dropping into __oom_kill_process(). > > Fixed. > > Btw. didn't you want to check > victim->signal->oom_score_adj == OOM_SCORE_ADJ_MIN > > here as well? Maybe I've missed something but you still can kill a task > which is oom disabled which I thought we agreed is the wrong thing to > do.
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