From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Lameter Subject: Re: [Bugme-new] [Bug 33502] New: Caught 64-bit read from uninitialized memory in __alloc_skb Date: Wed, 20 Apr 2011 10:17:57 -0500 (CDT) Message-ID: References: <20110418153852.153d3ed3.akpm@linux-foundation.org> <1303181466.4152.39.camel@edumazet-laptop> <1303182557.4152.48.camel@edumazet-laptop> <1303183217.4152.49.camel@edumazet-laptop> <1303244270.2756.3.camel@edumazet-laptop> <4DAE7579.3020400@cs.helsinki.fi> <1303279470.2756.17.camel@edumazet-laptop> <1303285519.4dae8f0fdf9b1@imp.free.fr> <4DAE901C.2090809@cs.helsinki.fi> <1303286998.3186.18.camel@edumazet-laptop> <1303290464.3186.32.camel@edumazet-laptop> <1303293765.3186.74.camel@edumazet-laptop> <1303309591.3186.84.camel@edumazet-laptop> <1303311687.3186.100.camel@edumazet-laptop> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: Pekka Enberg , casteyde.christian@free.fr, Andrew Morton , netdev@vger.kernel.org, bugzilla-daemon@bugzilla.kernel.org, bugme-daemon@bugzilla.kernel.org, Vegard Nossum To: Eric Dumazet Return-path: Received: from smtp103.prem.mail.ac4.yahoo.com ([76.13.13.42]:30098 "HELO smtp103.prem.mail.ac4.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1754725Ab1DTPSB (ORCPT ); Wed, 20 Apr 2011 11:18:01 -0400 In-Reply-To: <1303311687.3186.100.camel@edumazet-laptop> Sender: netdev-owner@vger.kernel.org List-ID: On Wed, 20 Apr 2011, Eric Dumazet wrote: > [PATCH v4] slub: dont use cmpxchg_double if KMEMCHECK or DEBUG_PAGEALLOC Acked-by: Christoph Lameter > > -#ifdef CONFIG_CMPXCHG_LOCAL > +#if defined(CONFIG_CMPXCHG_LOCAL) && !defined(CONFIG_KMEMCHECK) && \ > + !defined(CONFIG_DEBUG_PAGEALLOC) > +#define SLUB_USE_CMPXCHG_DOUBLE #undef CONFIG_CMPXCHG_LOCAL instead? Would reduce patch size but its kind of hacky.