Re: [patch 2/6] arch: mm: do not invoke OOM killer on kernel faultOOM

From: Johannes Weiner
Date: Thu Aug 01 2013 - 17:59:50 EST

On Mon, Jul 29, 2013 at 02:58:05PM -0400, KOSAKI Motohiro wrote:
> (7/25/13 6:25 PM), Johannes Weiner wrote:
> > Kernel faults are expected to handle OOM conditions gracefully (gup,
> > uaccess etc.), so they should never invoke the OOM killer. Reserve
> > this for faults triggered in user context when it is the only option.
> >
> > Most architectures already do this, fix up the remaining few.
> >
> > Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
> OK. but now almost all arch have the same page fault handler. So, I think
> we can implement arch generic page fault handler in future. Ah, ok, never
> mind if you are not interest.

Well, I'm already working towards it ;-) Still a long way to go,
though to fully replace them with generic code...

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

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