linux-kernel - Re: Need help debugging memory corruption

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Date:	Sun, 4 May 2008 14:55:29 -0500
From:	Jay Cliburn <jacliburn@...lsouth.net>
To:	Jarek Poplawski <jarkao2@...il.com>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	Chris Snook <csnook@...hat.com>
Subject: Re: Need help debugging memory corruption

On Sun, 04 May 2008 16:55:08 +0200
Jarek Poplawski <jarkao2@...il.com> wrote:

> Jarek Poplawski wrote, On 05/04/2008 04:24 PM:
> ...
> 
> > I'm definitely with less experience, so I wonder why it can't be
> > a simple race between atl1_clean_rx_ring() and something (maybe even
> > pending atl1_intr_rx()) on the other cpu writing skb while kfreeing?
> 
> 
> Hmm... atl1_intr_rx() looks impossible, so atl1_alloc_rx_buffers()?

I booted with nosmp and the bug is *much* harder to hit, but I still
hit it once out of about 10 tries.  Does the fact that I hit it once
using nosmp disprove the race theory?
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