netdev - Re: 3.2.8/amd64 full interrupt hangs and deadlocks under big network copies (page allocation failure)

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Message-ID: <20120409183632.GO29342@merlins.org>
Date:	Mon, 9 Apr 2012 11:36:32 -0700
From:	Marc MERLIN <marc@...lins.org>
To:	David Miller <davem@...emloft.net>
Cc:	bhutchings@...arflare.com, linux-wireless@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: 3.2.8/amd64 full interrupt hangs and deadlocks under big network copies (page allocation failure)

On Mon, Apr 09, 2012 at 02:12:41PM -0400, David Miller wrote:
> From: Marc MERLIN <marc@...lins.org>
> Date: Mon, 9 Apr 2012 10:20:51 -0700
> 
> > Any idea what's going on, what bucket of RAM is an issue for the driver
> > (total RAM is more than plenty), and where I should go from there?
> 
> The wireless layer is allocating high-order pages, so it's
> not the amount of ram, it's the fragmentation of it leading
> to a lack of those high-order pages.

I figured it was something of the sort, thanks for the professional
confirmation :)

What's my next step, file a bug with a specific team?

Thanks,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/  
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