From: dave b <db.pub.mail@gmail.com>
To: linux-mm@kvack.org
Subject: Fwd: PROBLEM: oom killer and swap weirdness on 2.6.3* kernels
Date: Fri, 21 May 2010 15:48:40 +1000 [thread overview]
Message-ID: <AANLkTimS2wdaCtYM3LYhCj2lvMFUPpK4oBBW1QdOoiBA@mail.gmail.com> (raw)
In-Reply-To: <AANLkTimJ_ROa55mX9sCs9TkoBZFEze5Ak-LQsAMeeigq@mail.gmail.com>
---------- Forwarded message ----------
From: dave b <db.pub.mail@gmail.com>
Date: 14 May 2010 23:14
Subject: Re: PROBLEM: oom killer and swap weirdness on 2.6.3* kernels
To: linux-kernel@vger.kernel.org
On 14 May 2010 22:53, dave b <db.pub.mail@gmail.com> wrote:
> In 2.6.3* kernels (test case was performed on the 2.6.33.3 kernel)
> when physical memory runs out and there is a large swap partition -
> the system completely stalls.
>
> I noticed that when running debian lenny using dm-crypt with
> encrypted / and swap with a 2.6.33.3 kernel (and all of the 2.6.3*
> series iirc) when all physical memory is used (swapiness was left at
> the default 60) the system hangs and does not respond. It can resume
> normal operation some time later - however it seems to take a *very*
> long time for the oom killer to come in. Obviously with swapoff this
> doesn't happen - the oom killer comes in and does its job.
>
>
> free -m
> total used free shared buffers cached
> Mem: 1980 1101 879 0 58 201
> -/+ buffers/cache: 840 1139
> Swap: 24943 0 24943
>
>
> My simple test case is
>
> dd if=/dev/zero of=/tmp/stall
> and wait till /tmp fills...
>
>Sorry - I forgot to say I am running x86-64
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next parent reply other threads:[~2010-05-21 5:49 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <AANLkTimAF1zxXlnEavXSnlKTkQgGD0u9UqCtUVT_r9jV@mail.gmail.com>
[not found] ` <AANLkTimUYmUCdFMIaVi1qqcz2DqGoILeu43XWZBHSILP@mail.gmail.com>
[not found] ` <AANLkTikTYbPKTaEMbdwGikV1Og4VQtXUCgNq0EldbR4U@mail.gmail.com>
[not found] ` <AANLkTimJ_ROa55mX9sCs9TkoBZFEze5Ak-LQsAMeeigq@mail.gmail.com>
2010-05-21 5:48 ` dave b [this message]
[not found] ` <AANLkTilmr29Vv3N64n7KVj9fSDpfBHIt8-quxtEwY0_X@mail.gmail.com>
2010-05-21 21:18 ` Hugh Dickins
2010-05-27 3:45 ` dave b
2010-06-01 20:52 ` David Rientjes
2010-07-26 14:05 ` dave b
2010-07-26 22:12 ` David Rientjes
2010-07-27 4:39 ` dave b
2010-07-27 4:46 ` KOSAKI Motohiro
2010-07-27 4:49 ` dave b
2010-07-27 6:09 ` KOSAKI Motohiro
2010-07-27 8:09 ` dave b
2010-07-27 10:40 ` dave b
2010-07-27 11:14 ` KOSAKI Motohiro
2010-07-27 11:26 ` dave b
2010-07-28 5:06 ` KOSAKI Motohiro
2010-07-28 7:14 ` dave b
2010-07-29 9:47 ` dave b
2010-07-29 9:48 ` dave b
2010-09-21 13:01 ` dave b
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