Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752993AbZGAHDo (ORCPT ); Wed, 1 Jul 2009 03:03:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751583AbZGAHDe (ORCPT ); Wed, 1 Jul 2009 03:03:34 -0400 Received: from rhun.apana.org.au ([64.62.148.172]:41351 "EHLO arnor.apana.org.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751046AbZGAHDd (ORCPT ); Wed, 1 Jul 2009 03:03:33 -0400 Date: Wed, 1 Jul 2009 15:03:32 +0800 From: Herbert Xu To: Andi Kleen Cc: jolsa@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, fbl@redhat.com, nhorman@redhat.com, davem@redhat.com, oleg@redhat.com, eric.dumazet@gmail.com Subject: Re: [PATCH] net: fix race in the receive/select Message-ID: <20090701070332.GA31103@gondor.apana.org.au> References: <87eit3l7y6.fsf@basil.nowhere.org> <20090701033924.GA29762@gondor.apana.org.au> <20090701062732.GK6760@one.firstfloor.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090701062732.GK6760@one.firstfloor.org> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 766 Lines: 20 On Wed, Jul 01, 2009 at 08:27:32AM +0200, Andi Kleen wrote: > > mfence is not needed for normal C code (not using non temporal > stores) in the Linux memory model on x86 and is a no-op. Only the compile > time barrier matters. In that case this bug needs to be digged deeper regardless of this patch. Thanks, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/