linux-kernel - Re: [PATCH 1/3] Increase lockdep limits: MAX_STACK_TRACE

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Message-ID: <20090709043931.GA11391@redhat.com>
Date:	Thu, 9 Jul 2009 00:39:31 -0400
From:	Dave Jones <davej@...hat.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	Joao Correia <joaomiguelcorreia@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Américo Wang <xiyou.wangcong@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Catalin Marinas <catalin.marinas@....com>
Subject: Re: [PATCH 1/3] Increase lockdep limits: MAX_STACK_TRACE_ENTRIES

On Wed, Jul 08, 2009 at 08:36:04PM +0200, Peter Zijlstra wrote:
 > Looking at a lockdep dump hch gave me I can see that that is certainly
 > possible, I see tons of very deep callchains.
 > 
 > /me wonders if we're getting significantly deeper..

Looking at /proc/lockdep, I'm curious..
Take a look at http://davej.fedorapeople.org/lockdep
scroll down to c12c0924

What's up with all those old_style_spin_init's ?

	Dave

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