linux-kernel - Re: 2.6.21-git8+ BUG: NMI Watchdog detected LOCKUP on CPU1

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Message-ID: <Pine.LNX.4.64.0705081807100.16923@twin.jikos.cz>
Date:	Tue, 8 May 2007 18:09:42 +0200 (CEST)
From:	Jiri Kosina <jikos@...os.cz>
To:	Andrew Morton <akpm@...ux-foundation.org>
cc:	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	LKML <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org,
	Patrick McHardy <kaber@...sh.net>
Subject: Re: 2.6.21-git8+ BUG: NMI Watchdog detected LOCKUP on CPU1

On Tue, 8 May 2007, Andrew Morton wrote:

>   happens when a local process sends packets with invalid IP headers
>   through raw sockets.
[...]
> Whatever happens, that printk should be toned down, shouldn't it?  We
> prefer to not let unprivileged apps spam the logs.

Isn't "unprivileged app sending packet through raw socket" an oxymoron? As 
Patrick pointed out, the message is there for a reason, I'd suggest using 
printk_ratelimit() in this case.

-- 
Jiri Kosina
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