netdev - Re: tcp_mark_head_lost warning in Linux kernel 3.10

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Message-ID: <CAHTgTXWG5wF26V_w2K=3uxOPx=WCA7XZkpthy+cVSr+=+wW3CA@mail.gmail.com>
Date:	Fri, 14 Nov 2014 17:48:47 -0800
From:	Vinson Lee <vlee@...pensource.com>
To:	Neal Cardwell <ncardwell@...gle.com>
Cc:	Eric Dumazet <eric.dumazet@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	James Morris <jmorris@...ei.org>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	Patrick McHardy <kaber@...sh.net>,
	Netdev <netdev@...r.kernel.org>
Subject: Re: tcp_mark_head_lost warning in Linux kernel 3.10

On Fri, Nov 14, 2014 at 5:36 PM, Neal Cardwell <ncardwell@...gle.com> wrote:
> Thanks, Vinson. The theory I'm working on involves SACK reneging. What do
> you get from:
>
>   nstat -a -z | grep TcpExtTCPSACKReneging
>

$ nstat -a -z | grep TcpExtTCPSACKReneging
TcpExtTCPSACKReneging           184357             0.0
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