netdev - Re: Regarding tx-nocache-copy in the Sheevaplug

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Date:	Mon, 13 Oct 2014 07:49:19 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Lluís Batlle i Rossell <viric@...ic.name>,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
Cc:	Andrew Lunn <andrew@...n.ch>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org,
	Carles Pagès <page@...ata.homelinux.net>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: Regarding tx-nocache-copy in the Sheevaplug

On Mon, 2014-10-13 at 16:31 +0200, Lluís Batlle i Rossell wrote:
> Enabling tx offload and disabling tx-nocache-copy, making the machine *send* a
> lot of ssh traffic (sftp for example) makes ssh fail HMAC. It's quite easy to
> reproduce here.
> 
> As for the hardware, it's an old sheevaplug board.


Have you tried disabling TSO only, and are you using the latest kernel ?

Ezequiel Garcia added lot of changes recently.


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