From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752607AbdJ3Ins (ORCPT ); Mon, 30 Oct 2017 04:43:48 -0400 Received: from mail.cn.fujitsu.com ([183.91.158.132]:19544 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752127AbdJ3Inq (ORCPT ); Mon, 30 Oct 2017 04:43:46 -0400 X-IronPort-AV: E=Sophos;i="5.43,368,1503331200"; d="scan'208";a="29730915" Subject: Re: [locking/paravirt] static_key_disable_cpuslocked(): static key 'virt_spin_lock_key+0x0/0x20' used before call to jump_label_init() To: Fengguang Wu , Juergen Gross References: <20171029225155.qcum5i75awrt5tzm@wfg-t540p.sh.intel.com> <20171030073509.23xtazsqrjuduqq5@wfg-t540p.sh.intel.com> CC: Linux Kernel Mailing List , Linus Torvalds , Peter Zijlstra , Waiman Long , Thomas Gleixner , , , , , , , , From: Dou Liyang Message-ID: Date: Mon, 30 Oct 2017 16:43:33 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: <20171030073509.23xtazsqrjuduqq5@wfg-t540p.sh.intel.com> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.167.226.106] X-yoursite-MailScanner-ID: 4341647F13A4.A77D0 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: douly.fnst@cn.fujitsu.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Fengguang, There are two different warning. At 10/30/2017 03:35 PM, Fengguang Wu wrote: > On Sun, Oct 29, 2017 at 11:51:55PM +0100, Fengguang Wu wrote: >> Hi Linus, >> >> Up to now we see the below boot error/warnings when testing v4.14-rc6. >> The original warning: WARNING:at_arch/x86/events/intel/core.c:#intel_pmu_handle_irq: 1 in v4.14-rc6, which happens rarely. >> They hit the RC release mainly due to various imperfections in 0day's >> auto bisection. So I manually list them here and CC the likely easy to >> debug ones to the corresponding maintainers in the followup emails. >> >> boot_successes: 4700 >> boot_failures: 247 > > [...] > >> WARNING:at_kernel/jump_label.c:#static_key_disable_cpuslocked: 7 > This is a new warning in tip tree, and the patch has sent[1]. [1]https://lkml.org/lkml/2017/10/28/4 we may need do it in v4.14-rc6, not in tip tree directly. Thanks, dou.