netdev - Re: [RFT] proxy arp deadlock possible

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Date:	Wed, 04 Apr 2007 18:10:42 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	Stephen Hemminger <shemminger@...ux-foundation.org>,
	davem@...emloft.net, mingo@...e.hu, davej@...hat.com,
	netdev@...r.kernel.org
Subject: Re: [RFT] proxy arp deadlock possible

On Thu, 2007-04-05 at 10:44 +1000, Herbert Xu wrote:
> Stephen Hemminger <shemminger@...ux-foundation.org> wrote:
> > Thanks Dave, there is a classic AB BA deadlock here.
> > We should break the dependency like this.
> > 
> > Could someone who uses proxy ARP test this?
> 
> Sorry Stephen, this isn't necessary.  The lockdep thing is
> simply confused here.  It's treating tbl->proxy_queue as the
> same thing as neigh->arp_queue when they're clearly different.
> 
> I'm disappointed that after all this time lockdep is still
> producing bogus reports like this.  I'm sure we've been
> through this particular issue many times already.


what's the exact lockdep output here?

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