linux-kernel - Re: v3.4-rc2 out-of-memory problems (was Re: 3.4-rc1 sticks-and-crashs)

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Message-ID: <CANcMJZCAzixEDWpCDJyqqzSKjNka-JU1yu7ky+sgfQHBT+vkKA@mail.gmail.com>
Date:	Mon, 9 Apr 2012 15:44:28 -0700
From:	john stultz <johnstul@...ibm.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Colin Cross <ccross@...gle.com>,
	David Rientjes <rientjes@...gle.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	werner <w.landgraf@...ru>, Rik van Riel <riel@...hat.com>,
	Hugh Dickins <hughd@...gle.com>, linux-kernel@...r.kernel.org,
	Oleg Nesterov <oleg@...hat.com>,
	Rabin Vincent <rabin.vincent@...ricsson.com>,
	Christian Bejram <christian.bejram@...ricsson.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Anton Vorontsov <anton.vorontsov@...aro.org>,
	stable@...r.kernel.org
Subject: Re: v3.4-rc2 out-of-memory problems (was Re: 3.4-rc1 sticks-and-crashs)

On Mon, Apr 9, 2012 at 3:21 PM, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
> On Mon, Apr 09, 2012 at 03:13:00PM -0700, Colin Cross wrote:
>> sched: Add a generic notifier when a task struct is about to be freed
>> https://www.codeaurora.org/gitweb/quic/la/?p=kernel/common.git;a=commitdiff;h=667dffa787a87ef4ea43cc65957ce96077fdcd0a
>
> Yes, I can't add a patch like that for this driver, that is why I
> thought everyone was getting together to "properly" determine how to
> solve this oom notifier problem.  Has that work stalled somwhere?

Anton Vorontsov  has been working on this (and just sent out some
related vmevent patches today). His hope is to use the vmevent  or mem
cgroup interface to notify a userland killer to get the same or
improved behavior as the in-kernel lowmemory killer.

thanks
-john
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