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From: Christoph Lameter <clameter@sgi.com>
To: root <root@programming.kicks-ass.net>
Subject: Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4
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Cc: Trond Myklebust <trond.myklebust@fys.uio.no>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	LKML <linux-kernel@vger.kernel.org>,
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	Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>,
	linuxppc-dev@ozlabs.org, nfs@lists.sourceforge.net,
	Ingo Molnar <mingo@elte.hu>, Jan Blunck <jblunck@suse.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Balbir Singh <balbir@linux.vnet.ibm.com>
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On Sun, 18 Nov 2007, root wrote:

> @@ -2155,6 +2155,7 @@ static struct kmem_cache_node *early_kme
>  {
>  	struct page *page;
>  	struct kmem_cache_node *n;
> +	unsigned long flags;
>  
>  	BUG_ON(kmalloc_caches->size < sizeof(struct kmem_cache_node));
>  

Well local_irq_save is a bit of an overkill. We know that interrupts are 
enabled during this phase of the boot sequence.