linux-kernel - Re: 2.6.24-rc8-mm1 : net tcp

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Message-ID: <Pine.LNX.4.64.0801230937270.31652@kivilampi-30.cs.helsinki.fi>
Date:	Wed, 23 Jan 2008 09:41:20 +0200 (EET)
From:	"Ilpo Järvinen" <ilpo.jarvinen@...sinki.fi>
To:	hidave.darkstar@...il.com
cc:	LKML <linux-kernel@...r.kernel.org>,
	Netdev <netdev@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: 2.6.24-rc8-mm1 : net tcp_input.c warnings

On Tue, 22 Jan 2008, David Miller wrote:

> From: "Dave Young" <hidave.darkstar@...il.com>
> Date: Wed, 23 Jan 2008 09:44:30 +0800
> 
> > On Jan 22, 2008 6:47 PM, Ilpo Järvinen <ilpo.jarvinen@...sinki.fi> wrote:
> > > [PATCH] [TCP]: debug S+L
> > 
> > Thanks, If there's new findings I will let you know.
> 
> Thanks for helping with this bug Dave.

I noticed btw that there thing might (is likely to) spuriously trigger at 
WARN_ON(sacked != tp->sacked_out); because those won't be equal when SACK 
is not enabled. If that does happen too often, I send a fixed patch for 
it, yet, the fact that I print print tp->rx_opt.sack_ok allows
identification of those cases already as it's zero when SACK is not 
enabled.

Just ask if you need the updated debug patch.

-- 
 i.