From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936528AbYD1VqP (ORCPT ); Mon, 28 Apr 2008 17:46:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934434AbYD1Vp7 (ORCPT ); Mon, 28 Apr 2008 17:45:59 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:46051 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933398AbYD1Vp6 (ORCPT ); Mon, 28 Apr 2008 17:45:58 -0400 Date: Mon, 28 Apr 2008 23:45:41 +0200 From: Ingo Molnar To: Mike Travis Cc: Andrew Morton , Thomas Gleixner , "H. Peter Anvin" , linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/1] x86: fix remove cpu_pda table patch Message-ID: <20080428214541.GA16153@elte.hu> References: <20080428210906.348866000@polaris-admin.engr.sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080428210906.348866000@polaris-admin.engr.sgi.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Mike Travis wrote: > [Ingo - please replace "PATCH 07/11" with this one.] > > * Remove 544k bytes from the kernel by removing the boot_cpu_pda > array from the data section and allocating it during startup. > > Fixed panic in setup_per_cpu_areas when HOTPLUG_CPU not set. > > For inclusion into sched-devel/latest tree. sched-devel.git randconfig testing found another crash with your queue: [ 0.111060] Brought up 1 CPUs [ 0.111986] Total of 1 processors activated (4022.73 BogoMIPS). [ 0.112987] Testing NMI watchdog ... <1>BUG: unable to handle kernel NULL pointer dereference at 0000000000000040 [ 0.114982] IP: [] check_nmi_watchdog+0xb0/0x210 [ 0.114982] PGD 0 [ 0.114982] Oops: 0000 [1] SMP [ 0.114982] CPU 0 [............] http://redhat.com/~mingo/misc/config-Mon_Apr_28_23_25_25_CEST_2008.bad http://redhat.com/~mingo/misc/log-Mon_Apr_28_23_25_25_CEST_2008.bad Ingo