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From: Eric Dumazet <eric.dumazet@gmail.com>
To: Joshua Roys <roysjosh@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	netdev@vger.kernel.org, bugzilla-daemon@bugzilla.kernel.org,
	bugme-daemon@bugzilla.kernel.org
Subject: Re: [Bugme-new] [Bug 15507] New: kernel misses 3rd part of tcp handshake (ACK), stays in SYN_RECV state
Date: Fri, 19 Mar 2010 14:42:09 +0100	[thread overview]
Message-ID: <1269006129.3048.36.camel@edumazet-laptop> (raw)
In-Reply-To: <4BA365BA.4040309@gmail.com>

Le vendredi 19 mars 2010 à 07:53 -0400, Joshua Roys a écrit :
> On 03/18/2010 07:12 PM, Eric Dumazet wrote:
> >
> > I would say this is expected if httpd server set DEFER_ACCEPT socket
> > option.
> >
> >
> >
> 
> Gah!  You've got to be kidding :)  If that's what it is, close the 
> bug...  and I'll go read some man-pages!
> 

So you _confirm_ DEFER_ACCEPT is not used, its _important_ for us.

I dont believe my comment was trivial at all :)

I gave a hint to myself and other network guys, because we did some
changes in this area lately (commit b103cf34 tcp: fix TCP_DEFER_ACCEPT
retrans calculation) from Julian Anastasov.

git describe b103cf34
v2.6.31-9056-gb103cf3

Please boot a fresh vm, then try exactly 10 'bad connects', please make
each attempt last at least 2 minutes. (you can start all these in
parallel)

And report :

netstat -s


(My FC12 copy doesnt exhibit this problem)

Thanks



  reply	other threads:[~2010-03-19 13:42 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-15507-10286@http.bugzilla.kernel.org/>
2010-03-18 23:01 ` [Bugme-new] [Bug 15507] New: kernel misses 3rd part of tcp handshake (ACK), stays in SYN_RECV state Andrew Morton
2010-03-18 23:12   ` Eric Dumazet
2010-03-19 11:53     ` Joshua Roys
2010-03-19 13:42       ` Eric Dumazet [this message]
2010-03-19 14:46       ` Eric Dumazet

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