Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757889AbYHNJAA (ORCPT ); Thu, 14 Aug 2008 05:00:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752315AbYHNI7w (ORCPT ); Thu, 14 Aug 2008 04:59:52 -0400 Received: from wx-out-0506.google.com ([66.249.82.229]:6255 "EHLO wx-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753949AbYHNI7v (ORCPT ); Thu, 14 Aug 2008 04:59:51 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=CiUGTVCDhv+v5Ggf7RhSTmMaaFxaYLLz0W1YLysCH44cfJYQ6sgFJdZTCWWaBnUiRT XzTRMnDSH/+mzOeXbsMivvbUM0RZl7FUG7Sp0Zg16ZKO7I/0VOQus1AlOtDuJeFMe1pg aVMUA6ds2C08xuizxBIX8esnZAzMom3On/OmE= Message-ID: <86802c440808140159n7874d343ncce1627de9463ac4@mail.gmail.com> Date: Thu, 14 Aug 2008 01:59:50 -0700 From: "Yinghai Lu" To: "Jeff Chua" Subject: Re: 2.6.27rc1 cannot boot more than 8CPUs Cc: "Ingo Molnar" , "David Miller" , "Linux Kernel" In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080813141629.GD19397@elte.hu> <20080813173940.GA32214@elte.hu> <86802c440808131046s4df84ba9va12d45897cf6affa@mail.gmail.com> <86802c440808131133o133e1dfftdfcc076a1100afb6@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1810 Lines: 51 On Thu, Aug 14, 2008 at 12:16 AM, Jeff Chua wrote: > On Thu, Aug 14, 2008 at 2:33 AM, Yinghai Lu wrote: > >>>>> > With 16 CPUs, it still hangs, but now the console is showing the >>>>> > errors as intended. >>>>> > ... but it is supposed to hang? > >> please check the attached patch. it should fix the new regression and >> will not hang. > > Ok, booted up and not hanged, but those messages below don't show up > anywhere. I've tested with CONFIG_NR_CPUS=16 and 8 as well. Just got 8 > cpus > > More than 8 CPUs detected - skipping them. > Use CONFIG_X86_GENERICARCH and CONFIG_X86_BIGSMP. > > # cat /sys/devices/system/cpu/possible > 0-7 > > CONFIG_X86_32=y > CONFIG_X86_PC=y > > double checked on one 16 cores system got CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 512K (64 bytes/line) CPU 0(4) -> Core 0 Intel machine check architecture supported. Intel machine check reporting enabled on CPU#0. using C1E aware idle routine Checking 'hlt' instruction... OK. ACPI: Core revision 20080609 Parsing all Control Methods: Table [DSDT](id 0001) - 1289 Objects with 114 Devices 462 Methods 26 Regions Parsing all Control Methods: Table [SSDT](id 0002) - 80 Objects with 0 Devices 0 Methods 0 Regions tbxface-0596 [00] tb_load_namespace : ACPI Tables successfully acquired evxfevnt-0091 [00] enable : Transition to ACPI mode successful More than 8 CPUs detected - skipping them. Use CONFIG_X86_GENERICARCH and CONFIG_X86_BIGSMP. enabled ExtINT on CPU#0 YH -- 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/