linux-kernel - Re: [Bug #14141] order 2 page allocation failures (generic)

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Date:	Mon, 19 Oct 2009 22:17:06 +0200 (CEST)
From:	Tobias Oetiker <tobi@...iker.ch>
To:	Mel Gorman <mel@....ul.ie>
cc:	Frans Pop <elendil@...net.nl>,
	Pekka Enberg <penberg@...helsinki.fi>,
	David Rientjes <rientjes@...gle.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Reinette Chatre <reinette.chatre@...el.com>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	Karol Lewandowski <karol.k.lewandowski@...il.com>,
	Mohamed Abbas <mohamed.abbas@...el.com>,
	"John W. Linville" <linville@...driver.com>, linux-mm@...ck.org,
	jens.axboe@...cle.com
Subject: Re: [Bug #14141] order 2 page allocation failures (generic)

Hi Mel,

Today Tobias Oetiker wrote:

> Hi Mel,
>
> Today Mel Gorman wrote:
>
> > >
> > > if you can send me a consolidated patch which does apply to
> > > 2.6.31.4 I will be glad to try ...
> > >
> >
> > Sure
> >
> > ==== CUT HERE ====
> >
> > From 6c0215af3b7c39ef7b8083ea38ca3ad93cd3f51f Mon Sep 17 00:00:00 2001
> > From: Mel Gorman <mel@....ul.ie>
> > Date: Mon, 19 Oct 2009 15:40:43 +0100
> > Subject: [PATCH] Kick off kswapd after direct reclaim and revert congestion changes
> >
> > The following patch is http://lkml.org/lkml/2009/10/16/89 on top of
> > 2.6.31.4 as well as patches 373c0a7e and 8aa7e847 reverted.
>
> it seems to help ... the server has been running for 3 hours now
> without incident, but then again it is not as active as during the
> day, ... will report tomorrow.

while I was writing, the system found that the patch does not realy
help:

Oct 19 22:09:52 johan kernel: [11157.121506] smtpd: page allocation failure. order:5, mode:0x4020 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121514] Pid: 19324, comm: smtpd Tainted: G      D    2.6.31.4-oep #1 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121518] Call Trace: [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121521]  <IRQ>  [<ffffffff810cb599>] __alloc_pages_nodemask+0x549/0x650 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121563]  [<ffffffffa02bde3b>] ? __nf_ct_refresh_acct+0xab/0x110 [nf_conntrack] [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121572]  [<ffffffffa02a8337>] ? ipt_do_table+0x2f7/0x610 [ip_tables] [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121580]  [<ffffffff810fac18>] kmalloc_large_node+0x68/0xc0 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121585]  [<ffffffff810fe90a>] __kmalloc_node_track_caller+0x11a/0x180 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121592]  [<ffffffff813ebd42>] ? skb_copy+0x32/0xa0 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121596]  [<ffffffff813e9606>] __alloc_skb+0x76/0x180 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121600]  [<ffffffff813ebd42>] skb_copy+0x32/0xa0 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121615]  [<ffffffffa07dd33c>] vboxNetFltLinuxPacketHandler+0x5c/0xd0 [vboxnetflt] [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121620]  [<ffffffff813f2512>] dev_hard_start_xmit+0x142/0x320 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121632]  [<ffffffff8140a2c1>] __qdisc_run+0x1a1/0x230 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121637]  [<ffffffff813f41e0>] dev_queue_xmit+0x2b0/0x3a0 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121642]  [<ffffffff8142349b>] ip_finish_output+0x11b/0x2f0 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121646]  [<ffffffff814236f9>] ip_output+0x89/0xd0 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121650]  [<ffffffff81422710>] ip_local_out+0x20/0x30 [kern.warning]
Oct 19 22:09:52 johan kernel: [11157.121654]  [<ffffffff81422ffb>] ip_queue_xmit+0x22b/0x3f0 [kern.warning]

cheers
tobi

-- 
Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
http://it.oetiker.ch tobi@...iker.ch ++41 62 775 9902 / sb: -9900
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