netdev - Re: Three TCP/IP warnings in 2.6.25-rc7-git1

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Message-Id: <20080403055435.M45441@visp.net.lb>
Date:	Thu, 3 Apr 2008 08:56:07 +0300
From:	"Denys Fedoryshchenko" <denys@...p.net.lb>
To:	David Miller <davem@...emloft.net>, arjan@...ux.intel.com
Cc:	netdev@...r.kernel.org, ilpo.jarvinen@...sinki.fi
Subject: Re: Three TCP/IP warnings in 2.6.25-rc7-git1

I can reproduce it during one day on my loaded proxies. I have:

[223178.376188] WARNING: at net/ipv4/tcp_input.c:2532 tcp_ack+0xd83/0x17bd()
and
[273139.505308] WARNING: at net/ipv4/tcp_input.c:2173
tcp_mark_head_lost+0x11e/0x126()

This two... maybe third, but i didn't notice it yet.

On Wed, 02 Apr 2008 22:28:46 -0700 (PDT), David Miller wrote
> From: Arjan van de Ven <arjan@...ux.intel.com>
> Date: Wed, 02 Apr 2008 22:21:09 -0700
> 
> > It would be not so nice to ship a 2.6.25 that triggers these frequently,
> > it has the risk of causing many user bugreports to this list and other
> > places...
> 
> I wouldn't call it frequently, on at least an individual basis,
> because nobody we try to get feedback from can reproduce this
> reliably.  That's the only reason this isn't fixed yet, despite
> all of Ilpo's efforts.
> 
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--
Denys Fedoryshchenko
Technical Manager
Virtual ISP S.A.L.

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