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

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Message-ID: <20120329140526.GG24933@merlins.org>
Date:	Thu, 29 Mar 2012 07:05:26 -0700
From:	Marc MERLIN <marc@...lins.org>
To:	David Miller <davem@...emloft.net>,
	James Courtier-Dutton <james.dutton@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 3.2.8/amd64 full interrupt hangs and deadlocks under big network copies (page allocation failure)

On Thu, Mar 29, 2012 at 02:49:10AM -0400, David Miller wrote:
> From: Marc MERLIN <marc@...lins.org>
> Date: Wed, 28 Mar 2012 22:31:11 -0700
>
> > This is a pretty bad failure. Someone please tell me there is
> > something I can do to work around the problem, and get the
> > underlying problem fixed.
>
> First step would be to report this to the proper mailing list,
> most networking and wireless developers do not read linux-kernel.
>
> I'd start with linux-wireless@...r.kernel.org and netdev@...r.kernel.org

On Thu, Mar 29, 2012 at 09:36:02AM +0100, James Courtier-Dutton wrote:
> That looks like a network card problem. Probably a hardware bug. Try a
> different network card if you can.

Thanks both for the answer. I don't think it's a network hardware
problem since it happens with both e1000e wired and iwlwifi wireless.

I wasn't quite sure if it was a memory allocation problem that caused the
hangs, but you're right that it's most likely a networking issue regardless
of the fact that it happens on both wired and wireless.

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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