linux-kernel - Re: [PATCH] Add source address to sunrpc svc errors

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Message-ID: <13825.1188416518@turing-police.cc.vt.edu>
Date:	Wed, 29 Aug 2007 15:41:58 -0400
From:	Valdis.Kletnieks@...edu
To:	Peter Staubach <staubach@...hat.com>
Cc:	"J. Bruce Fields" <bfields@...ldses.org>,
	"Dr. David Alan Gilbert" <linux@...blig.org>,
	Randy Dunlap <randy.dunlap@...cle.com>, neilb@...e.de,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Add source address to sunrpc svc errors

On Wed, 29 Aug 2007 09:37:00 EDT, Peter Staubach said:

> There are a lot of ways to discover who is throwing trash
> at your system other than the kernel printing messages.
> 
> Tools such as tcpdump and tethereal/wireshark make much better
> tools for this purpose.

Given the number of times I've had to use tcpdump and wireshark to wade
through literally gigabyte traces looking for stuff specifically because
the kernel *didn't* printk information it had handy, I'm not too sympathetic.
Especially when the printk in question is currently saying "I know who's
causing the problem but I'm not going to tell you, nyah nyah"....

(And if there's better ways than kernel printing messages, does that mean we
should deprecate the iptables '-j LOG' target while we're at it?)

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