David Miller [off-list ref] writes:

From: Neil Horman <nhorman@tuxdriver.com>
Date: Fri, 26 Jul 2013 13:02:51 -0400

quoted

On Fri, Jul 26, 2013 at 05:56:16PM +0100, Luis Henriques wrote:

quoted

Neil Horman [off-list ref] writes:

quoted

atl1c uses netdev_alloc_skb to refill its rx dma ring, but that call makes no
guarantees about the suitability of the memory for use in DMA.  As a result
we've gotten reports of atl1c drivers occasionally hanging and needing to be
reset:
https://bugzilla.kernel.org/show_bug.cgi?id=54021

Fix this by modifying the call to use the internal version __netdev_alloc_skb,
where you can set the gfp_mask explicitly to include GFP_DMA.

Tested by two reporters in the above bug, who have the hardware to validate it.
Both report immediate cessation of the problem with this patch

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Jay Cliburn <redacted>
CC: "David S. Miller" <davem@davemloft.net>
CC: stable@vger.kernel.org
Tested-by: Luis Henrix <redacted>

Thanks Neil!

Would it be possible for you to update my name and email?  (I've just
updated my bz account to remove my gmail account address -- I thought
I had done this ages ago.)

Tested-by: Luis Henriques <redacted>

I'm sure if Dave has time, he will square that up.

I took care of this while applying Neil's patch, thanks.

Thanks!

Cheers,
-- 
Luis