linux-kernel - Re: Page allocation failures in guest

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Message-ID: <20090812081934.33e8280f@mjolnir.ossman.eu>
Date:	Wed, 12 Aug 2009 08:19:34 +0200
From:	Pierre Ossman <drzeus-list@...eus.cx>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	Avi Kivity <avi@...hat.com>, Minchan Kim <minchan.kim@...il.com>,
	kvm@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	linux-mm@...ck.org, Wu Fengguang <fengguang.wu@...el.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>
Subject: Re: Page allocation failures in guest

On Wed, 12 Aug 2009 12:49:51 +0930
Rusty Russell <rusty@...tcorp.com.au> wrote:

> 
> It's kind of the nature of networking devices :(
> 
> I'd say your host now offers GSO features, so the guest allocates big
> packets.
> 
> > > I doesn't get out of it though, or at least the virtio net driver
> > > wedges itself.
> 
> There's a fixme to retry when this happens, but this is the first report
> I've received.  I'll check it out.
> 

Will it still trigger the OOM killer with this patch, or will things
behave slightly more gracefully?

Rgds
-- 
     -- Pierre Ossman

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