linux-kernel - Re: [PATCH 2/2] use oom_killer_disabled in page fault oom path

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Message-ID: <BANLkTingHBoK4mtsHkhZxW=p1GcxCjzRsQ@mail.gmail.com>
Date:	Tue, 26 Apr 2011 17:21:48 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	Dave Young <hidave.darkstar@...il.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	kamezawa.hiroyu@...fujitsu.com, kosaki.motohiro@...fujitsu.com
Subject: Re: [PATCH 2/2] use oom_killer_disabled in page fault oom path

On Tue, Apr 26, 2011 at 5:07 PM, Minchan Kim <minchan.kim@...il.com> wrote:
> On Tue, Apr 26, 2011 at 2:31 PM, Dave Young <hidave.darkstar@...il.com> wrote:
>> Currently oom_killer_disabled is only used in __alloc_pages_slowpath,
>> For page fault oom case it is not considered. One use case is
>> virtio balloon driver, when memory pressure is high, virtio ballooning
>> will cause oom killing due to such as page fault oom.
>
> Other mm guys already accepted but sorry I can't understand your point
> since I am not familiar with virtio.
>
> Now oom_killer_disabled is used by only hibernation and hibernation
> freezes processes so page fault shouldn't happen.
>
> Now are you using oom_killer_disabled in virtio?
> Could you elaborate use case ?

Sorry, I lost your [1/2] in my mail box.
I will see it in marc linux-mm

-- 
Kind regards,
Minchan Kim
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