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Date:	Mon, 18 Feb 2008 16:32:00 -0800
From:	"Michael Chan" <>
To:	"Tony Battersby" <>
cc:	"Herbert Xu" <>,
	"David Miller" <>,
	netdev <>,
	"Greg Kroah-Hartman" <>,
Subject: Re: TG3 network data corruption regression 2.6.24/

On Mon, 2008-02-18 at 17:41 -0500, Tony Battersby wrote:
> I am experiencing network data corruption with a 3Com 3C996B-T NIC
> (Broadcom NetXtreme BCM5701; driver tg3.ko).  I have identified the
> following patch as the trigger:

Assuming this problem is unique to the 5701, I'm not sure how it is
exposed by Herbert's patch.  One thing unique on the 5701 is that it
double-copies all RX packets so that the data starts at offset 2, but
that's quite unrelated to the patch below.

> commit fb93134dfc2a6e6fbedc7c270a31da03fce88db9
> Author: Herbert Xu <>
> Date:   Wed Nov 14 15:45:21 2007 -0800
>     [TCP]: Fix size calculation in sk_stream_alloc_pskb

> I do not get data corruption when substituting a SysKonnect 9D21 NIC
> (which also uses the tg3.ko driver)

What Broadcom chip is on the Syskonnect card?

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