linux-kernel - Re: [RFC][PATCH 7/7] lockdep: spin_lock_nest

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Message-Id: <20080804.143221.31929542.davem@davemloft.net>
Date:	Mon, 04 Aug 2008 14:32:21 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	a.p.zijlstra@...llo.nl
Cc:	andrea@...ranet.com, davej@...hat.com, rdreier@...co.com,
	torvalds@...ux-foundation.org, jeremy@...p.org, hugh@...itas.com,
	mingo@...e.hu, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH 7/7] lockdep: spin_lock_nest_lock()

From: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Date: Mon, 04 Aug 2008 18:38:55 +0200

> On Mon, 2008-08-04 at 18:26 +0200, Andrea Arcangeli wrote:
> > The only real place where lockdep is unusable in my experience is
> > preempt-RT, it grinds it to an halt during boot on 8-way before
> > reaching the shell.
> 
> David Miller just did a patch that might fix that.

Peter, your patches are just as effective at making all of my 64-cpu,
128-cpu, etc. machines usable with lockdep.
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