Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752801Ab3JBDLV (ORCPT ); Tue, 1 Oct 2013 23:11:21 -0400 Received: from intranet.asianux.com ([58.214.24.6]:58702 "EHLO intranet.asianux.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752458Ab3JBDLS (ORCPT ); Tue, 1 Oct 2013 23:11:18 -0400 X-Spam-Score: -100.9 Message-ID: <524B8E97.1030707@asianux.com> Date: Wed, 02 Oct 2013 11:10:15 +0800 From: Chen Gang User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130110 Thunderbird/17.0.2 MIME-Version: 1.0 To: Thomas Gleixner , "mingo@redhat.com" , "H. Peter Anvin" CC: the arch/x86 maintainers , "Yu, Fenghua" , toshi.kani@hp.com, rafael.j.wysocki@intel.com, isimatu.yasuaki@jp.fujitsu.com, "linux-kernel@vger.kernel.org" Subject: [Suggestion] about calling debug_hotplug_cpu() which enabled by 'allmodconfig' for a x86_64 dual core laptop. Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 828 Lines: 24 Hello Maintainers: Under my x86_64 dual core laptop, I build kernel next-20130927 with 'allmodconfig', and install it, the machine can not start. Related information is: after call debug_hotplug_cpu(), output "cpu 0 is offline" .... and then "Failed to execute /init". After remove "_debug_hotplug_cpu(0, 0);", can pass the issue (but will fail in another place). I guess, the reason is my laptop cpu is not 'hotplug', but have to call debug_hotplug_cpu() with allmodconfig. I will continue analyzing, welcome any additional suggestions or completions. Thanks. -- Chen Gang -- 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/