linux-kernel - Re: Badness at net/ipv4/inet_connection

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Date:	Sat, 12 Dec 2009 10:22:07 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
CC:	lists@...dbynature.de, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: Badness at net/ipv4/inet_connection_sock.c:293

Le 12/12/2009 10:03, David Miller a écrit :
> From: Christian Kujau <lists@...dbynature.de>
> Date: Fri, 11 Dec 2009 23:43:10 -0800 (PST)
> 
>> today I upgraded from 2.6.32-rc7 to the latest -git (mainline) and after a 
>> few hours the messages below appeared in the log. Apparently "privoxy" was 
>> very busy handling connections, but the messages never appeared with 
>> earlier kernels. 
>>
>> Full dmesg & .config is on:
>> http://nerdbynature.de/bits/2.6.33-git/inet_accept/
> 
> Yeah I started seeing this on one of my machines too, the
> assertion is:
> 
> 	WARN_ON(newsk->sk_state == TCP_SYN_RECV);
> 
> I wonder if some of the refactorings we did to allow per-route
> SACK/DSACK/etc. controls messed some sequence of state changes
> on TCP sockets.  But I can't find anything obvious in those
> commits.

Could it be about syncookies patches ?

tcp_create_openreq_child() changes ?

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