On Wed 22-06-16 00:32:29, Tetsuo Handa wrote: > Michal Hocko wrote: [...] > > Hmm, what about the following instead. It is rather a workaround than a > > full flaged fix but it seems much more easier and shouldn't introduce > > new issues. > > Yes, I think that will work. But I think below patch (marking signal_struct > to ignore TIF_MEMDIE instead of clearing TIF_MEMDIE from task_struct) on top > of > current linux.git will implement no-lockup requirement. No race is possible > unlike > "[PATCH 10/10] mm, oom: hide mm which is shared with kthread or global init".
Not really. Because without the exit_oom_victim from oom_reaper you have no guarantee that the oom_killer_disable will ever return. I have mentioned that in the changelog. There is simply no guarantee the oom victim will ever reach exit_mm->exit_oom_victim. -- Michal Hocko SUSE Labs
