netdev - Re: [RFT] proxy arp deadlock possible

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Date:	Thu, 5 Apr 2007 00:49:47 -0400
From:	Dave Jones <davej@...hat.com>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Herbert Xu <herbert@...dor.apana.org.au>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	davem@...emloft.net, mingo@...e.hu, netdev@...r.kernel.org
Subject: Re: [RFT] proxy arp deadlock possible

On Wed, Apr 04, 2007 at 06:10:42PM -0700, Arjan van de Ven wrote:
 > 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?

http://www.mail-archive.com/netdev@vger.kernel.org/msg35266.html

	Dave

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http://www.codemonkey.org.uk
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