From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751158Ab0GJT4h (ORCPT ); Sat, 10 Jul 2010 15:56:37 -0400 Received: from mail-fx0-f46.google.com ([209.85.161.46]:57616 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750827Ab0GJT4g (ORCPT ); Sat, 10 Jul 2010 15:56:36 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:reply-to:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; b=S9ACqXm79WP2doDVK8RDPcS68dGSPDH7aDO+43+oHRnQtyFN80eTXHpAdOv5T18nfe PZ9CxICCAbzgeWU4riWz0YwF04hBCG5fsovZ46OFELzf9vmBHNVJs0NDDKj3Hh3J4YG1 /UO4Owh/z3iKjWeXsczJ+o78Evp8/QBjCQiIY= From: Maciej Rutecki Reply-To: maciej.rutecki@gmail.com To: Mathieu Desnoyers Subject: Re: [BUG -tip bisected] x86, mem: Optimize memcpy by avoiding memory false dependece Date: Sat, 10 Jul 2010 21:56:29 +0200 User-Agent: KMail/1.13.3 (Linux/2.6.35-rc4; KDE/4.4.4; i686; ; ) Cc: mingo@elte.hu, linux-kernel@vger.kernel.org, Ma Ling , "H. Peter Anvin" References: <20100707220325.GA27738@Krystal> In-Reply-To: <20100707220325.GA27738@Krystal> MIME-Version: 1.0 Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <201007102156.30347.maciej.rutecki@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On czwartek, 8 lipca 2010 o 00:03:25 Mathieu Desnoyers wrote: > Hi Ingo, > > I just bisected the cause of boot hard lockup on my Intel Xeon E5405 to > this commit recently added to -tip: > > a1e5278e40f16a4611264f8da9e557c16cb6f6ed is the first bad commit > Merge branch 'x86/mem' > I created a Bugzilla entry at https://bugzilla.kernel.org/show_bug.cgi?id=16364 for your bug report, please add your address to the CC list in there, thanks! -- Maciej Rutecki http://www.maciek.unixy.pl