netdev - Re: possible bug in tcp

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Date:	Tue, 13 Nov 2007 14:28:08 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Gavin McCullagh <Gavin.McCullagh@...m.ie>
Cc:	netdev@...r.kernel.org
Subject: Re: possible bug in tcp_probe

Gavin McCullagh <Gavin.McCullagh@...m.ie> writes:

> I'm using linux v2.6.22.6 and tcp_probe with a couple of small
> modifications[1]. 
>
> Even with moderately large numbers of flows (16 on the one machine) and
> increasingly as I monitor more flows than that, I get strange overflow
> problems such as this one:

You probably just need to increase the buffer (bufsize option to the 
module or tcp_probe.bufsize if compiled in) 

In general I think tcp_probe was always more intended a demo of how kprobes
could be used than a real production tool (with no offense to sch) 

-Andi

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