netdev - Re: ppp, "Features changed" flooding the log

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Message-ID: <e04d91916983d0a9274087cd2f5ef64d@visp.net.lb>
Date:	Fri, 20 May 2011 16:44:23 +0300
From:	Denys Fedoryshchenko <denys@...p.net.lb>
To:	Denys Fedoryshchenko <denys@...p.net.lb>
Cc:	<netdev@...r.kernel.org>
Subject: Re: ppp, "Features changed" flooding the log

 On Fri, 20 May 2011 16:42:08 +0300, Denys Fedoryshchenko wrote:
> Hi
>
> Is it supposed to be like this?
> [   41.575487] ppp313: Features changed: 0x00006800 -> 0x00006000
> [   41.681499] ppp314: Features changed: 0x00006800 -> 0x00006000
> [   41.796728] ppp315: Features changed: 0x00006800 -> 0x00006000
> [   41.909575] ppp316: Features changed: 0x00006800 -> 0x00006000
> [   42.027802] ppp317: Features changed: 0x00006800 -> 0x00006000
> [   42.142698] ppp318: Features changed: 0x00006800 -> 0x00006000
> [   42.292753] ppp319: Features changed: 0x00006800 -> 0x00006000
> [   42.408706] ppp320: Features changed: 0x00006800 -> 0x00006000
> [   42.544745] ppp321: Features changed: 0x00006800 -> 0x00006000
> [   42.634743] ppp322: Features changed: 0x00006800 -> 0x00006000
> [   42.740747] ppp323: Features changed: 0x00006800 -> 0x00006000
> [   42.856579] ppp324: Features changed: 0x00006800 -> 0x00006000
>
> I guess ppp dropping GSO, but is it should be there on first place?
> GSO is disabled on all ethernet interfaces.
 And as i see GRO enabled there, i guess it can be harmful for shapers, 
 how to disable it?
 NewNet-PPPoE ~ # ethtool -K ppp0 gro off
 Cannot set device GRO settings: Operation not supported
 Or there is no need for that?
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