Date: Wed, 2 Jan 2008 12:51:20 -0800 (PST)
From: Christoph Lameter <clameter@sgi.com>
To: Torsten Kaiser <just.for.lkml@googlemail.com>
cc: root <root@dyad.programming.kicks-ass.net>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Ingo Molnar <mingo@elte.hu>, Andrew Morton <akpm@linux-foundation.org>,
       LKML <linux-kernel@vger.kernel.org>, Andy Whitcroft <apw@shadowen.org>,
       Jan Blunck <jblunck@suse.de>, Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4
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 <20071117180946.GA14055@elte.hu> <20071117230049.GA25905@dyad>
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On Wed, 2 Jan 2008, Torsten Kaiser wrote:

> I just tested something with vanilla 2.6.24-rc6 and had the same problem.
> Should this patch, or something similar be included for 2.6.24?

Such a patch is in Andrew's tree.

2.6.24-rc6-mm1:

tatic struct kmem_cache_node *early_kmem_cache_node_alloc(gfp_t gfpflags,
                                                           int node)
{
        struct page *page;
        struct kmem_cache_node *n;
        unsigned long flags;
...

    /*
         * lockdep requires consistent irq usage for each lock
         * so even though there cannot be a race this early in
         * the boot sequence, we still disable irqs.
         */
        local_irq_save(flags);
        add_partial(kmalloc_caches, page, 0);
        local_irq_restore(flags);
        return n;
}
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