Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764218AbYHFDy4 (ORCPT ); Tue, 5 Aug 2008 23:54:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752676AbYHFDyr (ORCPT ); Tue, 5 Aug 2008 23:54:47 -0400 Received: from wolverine02.qualcomm.com ([199.106.114.251]:22093 "EHLO wolverine02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751510AbYHFDyr (ORCPT ); Tue, 5 Aug 2008 23:54:47 -0400 X-IronPort-AV: E=McAfee;i="5200,2160,5354"; a="5180698" Message-ID: <48992085.3050203@qualcomm.com> Date: Tue, 05 Aug 2008 20:54:45 -0700 From: Max Krasnyansky User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: Jeff Chua CC: lkml Subject: Re: 2.6.27rc1 cannot boot more than 8CPUs References: <48991B07.3050500@qualcomm.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1370 Lines: 41 Jeff Chua wrote: > On Wed, Aug 6, 2008 at 11:31 AM, Max Krasnyansky wrote: >> You could try booting CONFIG_NR_CPUS=16 with maxcpus=8 (kernel command line option). >> If it boots you can then try bringing the rest of the cpus online manually > > Ok, booted with CONFIG_NR_CPUS=16 with maxcpus=8, but can't find the > rest of the CPUs. > > I can only find cpu0 to cpu7 ... > > > drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu0 > drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu1 > drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu2 > drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu3 > drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu4 > drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu5 > drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu6 > drwxr-xr-x 4 root root 0 Aug 6 19:38 cpu7 > -r--r--r-- 1 root root 4096 Aug 6 19:41 online > -r--r--r-- 1 root root 4096 Aug 6 19:39 possible > -r--r--r-- 1 root root 4096 Aug 6 19:38 present > -rw-r--r-- 1 root root 4096 Aug 6 19:38 sched_mc_power_savings > > # cat online > 0-7 > # cat possible > 0-23 > # cat present > 0-7 Are you running 32-bit kernel ? Max -- 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/