netdev - Re: sky2 panic in 2.6.32.1 under load (new oops)

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Date:	Wed, 30 Dec 2009 10:10:46 -0800
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Michael Breuer <mbreuer@...jas.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	"Berck E. Nash" <flyboy@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	netdev@...r.kernel.org
Subject: Re: sky2 panic in 2.6.32.1 under load (new oops)

On Wed, 30 Dec 2009 10:40:56 -0500
Michael Breuer <mbreuer@...jas.com> wrote:

> Dec 30 10:37:14 mail kernel: sky2 0000:06:00.0: error interrupt 
> status=0x40000008
> Dec 30 10:37:14 mail kernel: sky2 Tx ring pending=31...40 report=35 done=35
> Dec 30 10:37:14 mail kernel: 30: 0x0: 0xeb50c0ca(9014)
> Dec 30 10:37:14 mail kernel: 32: 0x0: 0xeb5080ca(9014)
> Dec 30 10:37:14 mail kernel: 34: 0x0: 0xeb5040ca(9014)
> Dec 30 10:37:14 mail kernel: 36: 0x0: 0xeb5000ca(9014)
> Dec 30 10:37:14 mail kernel: 38: 0x0: 0xeb4fc0ca(9014)

You must be using 9K MTU.  Do you see the problem with smaller
MTU?

> Dec 30 10:37:14 mail kernel: sky2 0000:06:00.0: error interrupt 
> status=0x40000008
> Dec 30 10:37:14 mail kernel: sky2 Tx ring pending=87...92 report=89 done=91
> Dec 30 10:37:14 mail kernel: 86: 0x0: 0xeafd80ca(9014)
> Dec 30 10:37:14 mail kernel: 88: 0x0: 0xeafd40ca(9014)
> Dec 30 10:37:14 mail kernel: 90: 0x0: 0xeafd00ca(9014)
> Dec 30 10:37:15 mail kernel: sky2 0000:06:00.0: error interrupt status=0x8
> Dec 30 10:37:15 mail kernel: sky2 Tx ring pending=39...42 report=39 done=41
> Dec 30 10:37:15 mail kernel: 38: 0x0: 0xe5fec0ca(9014)
> Dec 30 10:37:15 mail kernel: 40: 0x0: 0xe5fe80ca(9014)
> Dec 30 10:37:15 mail kernel: sky2 0000:06:00.0: error interrupt 
> status=0x40000008
> Dec 30 10:37:15 mail kernel: sky2 Tx ring pending=117...124 report=119 
> done=119
> Dec 30 10:37:15 mail kernel: 116: 0x0: 0xe5d6c0ca(9014)
> Dec 30 10:37:15 mail kernel: 118: 0x0: 0xe5d680ca(9014)
> Dec 30 10:37:15 mail kernel: 120: 0x0: 0xe5d660ca(5938)
> Dec 30 10:37:15 mail kernel: 122: 0x0: 0xe5d640ca(4213)

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