netdev - Re: TCP_DEFER_ACCEPT is missing counter update

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Message-ID: <20091013081233.GB3874@1wt.eu>
Date:	Tue, 13 Oct 2009 10:12:33 +0200
From:	Willy Tarreau <w@....eu>
To:	David Miller <davem@...emloft.net>
Cc:	eric.dumazet@...il.com, netdev@...r.kernel.org
Subject: Re: TCP_DEFER_ACCEPT is missing counter update

On Tue, Oct 13, 2009 at 12:35:06AM -0700, David Miller wrote:
> From: Eric Dumazet <eric.dumazet@...il.com>
> Date: Tue, 13 Oct 2009 09:23:59 +0200
> 
> > I dont understand why you want to decrement rskq_defer_accept here.
> > We receive a pure ACK (wihout DATA).
> > We should receive exactly one such ACK.
> > (This is the third packet of the three way TCP handshake)
> > 
> > How this can solve the problem you mention ?
> > (ie, not sending an RST when we timeout the SYN_RECV session)
> 
> I'll hold off on this patch until Eric's comments are
> addressed, thanks.

I have replied, but let's wait for Eric's response.

Willy

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