From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Michael Chan" <mchan@broadcom.com>
Subject: Re: [BUG] tg3: frequent freezes
Date: Mon, 16 Jul 2012 23:56:29 -0700
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To: "Eric Dumazet" <eric.dumazet@gmail.com>
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On Tue, 2012-07-17 at 07:35 +0200, Eric Dumazet wrote:
> [  266.248330] tg3 0000:09:00.0: eth0: 0x00004800: 0x080303fe,
> 0x00000010, 0x00000000, 0x00000020

RDMAC_STATUS (0x4804) is showing 0x10 which is parity error.

>[  266.247878] tg3 0000:09:00.0: eth0: 0x00000000: 0x167314e4,
>0x40100506, 0x02000002, 0x00000010

PCI Status (0x06) is also showing SERR (0x4000)

Assuming your chip is not a bad chip, I'll have to look around for a
5755M and see if I can duplicate the problem.