Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753346Ab1BEEiI (ORCPT ); Fri, 4 Feb 2011 23:38:08 -0500 Received: from terminus.zytor.com ([198.137.202.10]:47018 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753116Ab1BEEiG (ORCPT ); Fri, 4 Feb 2011 23:38:06 -0500 Message-ID: <4D4CD411.6070800@zytor.com> Date: Fri, 04 Feb 2011 20:37:37 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101209 Fedora/3.1.7-0.35.b3pre.fc14 Thunderbird/3.1.7 MIME-Version: 1.0 To: Kees Cook CC: mingo@redhat.com, linux-kernel@vger.kernel.org, castet.matthieu@free.fr, tglx@linutronix.de, hpa@linux.intel.com Subject: Re: [tip:x86/urgent] x86-32: Make sure the stack is set up before we use it References: <4D41E86D.8060205@free.fr> <20110205021922.GP5503@outflux.net> In-Reply-To: <20110205021922.GP5503@outflux.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 741 Lines: 25 On 02/04/2011 06:19 PM, Kees Cook wrote: > Hi Peter, > > This works for me doing CPU hotplugging on ia32, but on x86_64 it hangs. > (Both boot, though.) > > Thanks, > > -Kees I can't reproduce the failure here, and it's hard to see how this patch would make a significant change on 64 bits. Could you try reverting *only* the head_64.S hunk and try it on your platform again? -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- 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/