Re: [PATCH rh6] mm: skip zombie in OOM-killer

[KOSAKI Motohiro]

> A parent may wait a memory and zombie will prevent killing another task.
> 
> Signed-off-by: Andrey Vagin <avagin@xxxxxxxxxx>
> ---
>  mm/oom_kill.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/mm/oom_kill.c b/mm/oom_kill.c
> index 7dcca55..2fc554e 100644
> --- a/mm/oom_kill.c
> +++ b/mm/oom_kill.c
> @@ -311,7 +311,7 @@ static struct task_struct *select_bad_process(unsigned int *ppoints,
>  		 * blocked waiting for another task which itself is waiting
>  		 * for memory. Is there a better alternative?
>  		 */
> -		if (test_tsk_thread_flag(p, TIF_MEMDIE))
> +		if (test_tsk_thread_flag(p, TIF_MEMDIE) && p->mm)
>  			return ERR_PTR(-1UL);

OK. Good catch.

	Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>




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