Date: Tue, 22 May 2007 11:24:39 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Srihari Vijayaraghavan <sriharivijayaraghavan@yahoo.com.au>
Cc: Christoph Lameter <clameter@sgi.com>, Hugh Dickins <hugh@veritas.com>,
       Oliver Xymoron <oxymoron@waste.org>,
       Andrew Morton <akpm@linux-foundation.org>,
       Jens Axboe <jens.axboe@oracle.com>, linux-kernel@vger.kernel.org
Subject: Re: [PROBLEM] 2.6.22-rc2 panics on x86-64 with slub
Message-ID: <20070522092439.GA19895@elte.hu>
References: <20070522070738.GI4705@kernel.dk> <404129.76498.qm@web52610.mail.re2.yahoo.com>
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* Srihari Vijayaraghavan <sriharivijayaraghavan@yahoo.com.au> wrote:

> Just another data point: with the flick of CONFIG_SMP, I'm in control 
> of the hangs/crashes ;-).
> 
> Yup, with CONFIG_SMP=n, I'm unable to reproduce the problem. It's 
> quite stable actually (having completed a dozen kernel compile 
> sessions so far).
> 
> I suspected this after seeing spinlock issues on both cores of my CPU 
> in my earlier report. Just a stab in the dark with some unexpected 
> luck :-).

could you enable CONFIG_PROVE_LOCKING - does it spit out any warning 
into the syslog?

	Ingo
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