On Mon, 30 Nov 2015, Chenjie (K) wrote:
> My kernel version is 3.10 ,but the 4.3 is the same
> and the newest code is
>
> for_each_process(p) {
> if (!process_shares_mm(p, mm))
> continue;
> if (same_thread_group(p, victim))
> continue;
> if (unlikely(p->flags & PF_KTHREAD))
> continue;
> if (p->signal->oom_score_adj == OOM_SCORE_ADJ_MIN)
> continue;
>
> so this not add the ！is_global_init also.
>
> when we vfork (CLONE_VM) a process,the copy_mm
> if (clone_flags & CLONE_VM) {
> atomic_inc(&oldmm->mm_users);
> mm = oldmm;
> goto good_mm;
> }
> use the parent mm.
>
I think it might be a legitimate fix, but if the oom killer is killing pid
9134 in your log then I assume the next call to the oom killer will panic
the system anyway unless there is actually a process using less memory
that can be killed. Would you mind enabling vm.oom_dump_tasks (it should
default to enabled) and post the entire oom killer log?