From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Lameter <cl@linux.com>
Subject: Re: [Bugme-new] [Bug 33502] New: Caught 64-bit read from uninitialized
 memory in __alloc_skb
Date: Tue, 19 Apr 2011 16:18:43 -0500 (CDT)
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Cc: Andrew Morton <akpm@linux-foundation.org>, netdev@vger.kernel.org,
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To: Eric Dumazet <eric.dumazet@gmail.com>
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On Tue, 19 Apr 2011, Eric Dumazet wrote:

> > Ugg.. Isnt there some way to indicate to kmemcheck that a speculative
> > access is occurring?
>
> Yes, here is a totally untested patch (only compiled here), to keep
> kmemcheck & cmpxchg_double together.

Ok looks somewhat saner. Why does DEBUG_PAGEALLOC need this? Pages are
never freed as long as a page is frozen and a page needs to be frozen to
be allocated from. I dont see how we could reference a free page.