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Message-ID: <alpine.DEB.2.00.1105101132230.2611@router.home>
Date: Tue, 10 May 2011 11:33:09 -0500 (CDT)
From: Christoph Lameter <cl@...ux.com>
To: Pekka Enberg <penberg@...helsinki.fi>
cc: Eric Dumazet <eric.dumazet@...il.com>, casteyde.christian@...e.fr,
Andrew Morton <akpm@...ux-foundation.org>,
netdev@...r.kernel.org, bugzilla-daemon@...zilla.kernel.org,
bugme-daemon@...zilla.kernel.org,
Vegard Nossum <vegardno@....uio.no>
Subject: Re: [Bugme-new] [Bug 33502] New: Caught 64-bit read from uninitialized
memory in __alloc_skb
On Tue, 10 May 2011, Pekka Enberg wrote:
> On 5/10/11 1:17 PM, Eric Dumazet wrote:
> > Le mardi 10 mai 2011 à 13:03 +0300, Pekka Enberg a écrit :
> >
> > > Can't we fix the issue by putting kmemcheck_mark_initialized() to
> > > set_freepointer()?
> >
> > This would solve kmemcheck problem, not DEBUG_PAGEALLOC
>
> Oh, right. Christoph? We need to support DEBUG_PAGEALLOC with SLUB.
Well back to the #ifdef then? Or has DEBUG_PAGEALLOC some override
mechanism that we can do a speculative memory access?
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