On Tue, May 30, 2017 at 7:29 AM, David Rientjes <rient...@google.com> wrote: > On Thu, 25 May 2017, Konstantin Khlebnikov wrote: > >> diff --git a/mm/oom_kill.c b/mm/oom_kill.c >> index 04c9143a8625..dd30a045ef5b 100644 >> --- a/mm/oom_kill.c >> +++ b/mm/oom_kill.c >> @@ -876,6 +876,11 @@ static void oom_kill_process(struct oom_control *oc, >> const char *message) >> /* Get a reference to safely compare mm after task_unlock(victim) */ >> mm = victim->mm; >> mmgrab(mm); >> + >> + /* Raise event before sending signal: reaper must see this */ > > How is the oom reaper involved here?
Task reaper - OOM event should happens before SIGCHLD. > >> + count_vm_event(OOM_KILL); >> + mem_cgroup_count_vm_event(mm, OOM_KILL); >> + >> /* >> * We should send SIGKILL before setting TIF_MEMDIE in order to prevent >> * the OOM victim from depleting the memory reserves from the user > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majord...@kvack.org. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"d...@kvack.org";> em...@kvack.org </a>
