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In-Reply-To: <20110426053150.GA11949@darkstar>
References: <20110426053150.GA11949@darkstar>
Date: Tue, 26 Apr 2011 17:07:34 +0900
Message-ID: <BANLkTimzYwa87NJ0F4AEN=9EZs=3-5SBaA@mail.gmail.com>
Subject: Re: [PATCH 2/2] use oom_killer_disabled in page fault oom path
From: Minchan Kim <minchan.kim@gmail.com>
To: Dave Young <hidave.darkstar@gmail.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        kamezawa.hiroyu@jp.fujitsu.com, kosaki.motohiro@jp.fujitsu.com
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On Tue, Apr 26, 2011 at 2:31 PM, Dave Young <hidave.darkstar@gmail.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 ?

Thanks.
-- 
Kind regards,
Minchan Kim
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