netdev - Re: [Regression][v3.10][v3.11] net: Kill link between CSUM and SG features.

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Date:	Tue, 16 Jul 2013 11:29:32 -0700
From:	Pravin Shelar <pshelar@...ira.com>
To:	Joseph Salisbury <joseph.salisbury@...onical.com>
Cc:	davem@...emloft.net, ben.howard@...onical.com, edumazet@...gle.com,
	xiyou.wangcong@...il.com, alexander.h.duyck@...el.com,
	jiri@...nulli.us, netdev@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>, kys@...rosoft.com,
	haiyangz@...rosoft.com
Subject: Re: [Regression][v3.10][v3.11] net: Kill link between CSUM and SG features.

On Tue, Jul 16, 2013 at 11:09 AM, Joseph Salisbury
<joseph.salisbury@...onical.com> wrote:
> Hi Pravin,
>
> A bug was opened against the Ubuntu kernel[0].  After a kernel bisect,
> it was found that reverting the following commit resolved this bug:
>
> commit ec5f061564238892005257c83565a0b58ec79295
> Author: Pravin B Shelar <pshelar@...ira.com>
> Date:   Thu Mar 7 09:28:01 2013 +0000
>
>     net: Kill link between CSUM and SG features.
>
>
> The regression was introduced as of v3.10-rc1.
>
> I see that you are the author of this patch, so I wanted to run this by
> you.  I was thinking of requesting a revert for v3.11, but I wanted to
> get your feedback first.
>
>
This issue was reported before and turning off sg solves problem for
HyperV driver. Drivers (intel and bnx2x) that I tested works fine with
this patch. Have you seen the issue on any other NIC?


> Thanks,
>
> Joe
>
> [0] http://pad.lv/1200243
>
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