From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757170Ab3JNQaD (ORCPT ); Mon, 14 Oct 2013 12:30:03 -0400 Received: from terminus.zytor.com ([198.137.202.10]:54820 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756227Ab3JNQaB (ORCPT ); Mon, 14 Oct 2013 12:30:01 -0400 Message-ID: <525C1BC1.6090501@zytor.com> Date: Mon, 14 Oct 2013 09:28:49 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.0 MIME-Version: 1.0 To: Ingo Molnar , linux-kernel@vger.kernel.org, keescook@chromium.org, md@google.com, tglx@linutronix.de, hpa@linux.intel.com CC: linux-tip-commits@vger.kernel.org Subject: Re: [tip:x86/kaslr] x86, relocs: Add more per-cpu gold special cases References: <20131011013954.GA28902@www.outflux.net> <20131014083035.GA20976@gmail.com> <007cdb12-9fc7-4744-8686-695891b926a3@email.android.com> In-Reply-To: <007cdb12-9fc7-4744-8686-695891b926a3@email.android.com> X-Enigmail-Version: 1.5.2 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 On 10/14/2013 07:19 AM, H. Peter Anvin wrote: > My guess is that the 95 addresses are randomized and the 82 address is an address which failed to relocate. > ffffffff82a04a58 is: > ffffffff82a03000 t init_per_cpu__gdt_page Specifically, it looks like the percpu stuff isn't getting set up correctly. -hpa