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Subject: Re: 2.6.30-rc kills my box hard - and lockdep chains
From: Peter Zijlstra <peterz@infradead.org>
To: Jonathan Corbet <corbet@lwn.net>
Cc: LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>
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Date: Fri, 15 May 2009 07:32:35 +0200
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On Thu, 2009-05-14 at 09:49 -0600, Jonathan Corbet wrote:
> First time gave me:
> 
>         BUG: MAX_LOCKDEP_ENTRIES too low!
> 
> So I doubled it.  Now I get:
> 
> May 14 01:06:55 bike kernel: [38730.804833] BUG: MAX_LOCKDEP_CHAINS
> too low!

Ingo recently raised these numbers, from the -tip tree:

commit d80c19df5fcceb8c741e96f09f275c2da719efef
Author: Ingo Molnar <mingo@elte.hu>
Date:   Tue May 12 16:29:13 2009 +0200

    lockdep: increase MAX_LOCKDEP_ENTRIES and MAX_LOCKDEP_CHAINS


This will likely make its way upstream soonish.