linux-kernel - Re: [PATCH] mm, oom: Fix race when selecting process to kill

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Message-ID: <alpine.DEB.2.02.1311051727090.29471@chino.kir.corp.google.com>
Date:	Tue, 5 Nov 2013 17:27:29 -0800 (PST)
From:	David Rientjes <rientjes@...gle.com>
To:	Luigi Semenzato <semenzato@...gle.com>
cc:	Sameer Nanda <snanda@...omium.org>,
	Andrew Morton <akpm@...ux-foundation.org>, mhocko@...e.cz,
	Johannes Weiner <hannes@...xchg.org>, rusty@...tcorp.com.au,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm, oom: Fix race when selecting process to kill

On Tue, 5 Nov 2013, Luigi Semenzato wrote:

> It's not enough to hold a reference to the task struct, because it can
> still be taken out of the circular list of threads.  The RCU
> assumptions don't hold in that case.
> 

Could you please post a proper bug report that isolates this at the cause?

Thanks.
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