From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1EF22C4646C for ; Tue, 25 Jun 2019 01:45:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E7593208E3 for ; Tue, 25 Jun 2019 01:45:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730132AbfFYBpz (ORCPT ); Mon, 24 Jun 2019 21:45:55 -0400 Received: from mga03.intel.com ([134.134.136.65]:38321 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728104AbfFYBpz (ORCPT ); Mon, 24 Jun 2019 21:45:55 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Jun 2019 18:45:54 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.63,413,1557212400"; d="scan'208";a="169623634" Received: from shao2-debian.sh.intel.com (HELO [10.239.13.6]) ([10.239.13.6]) by FMSMGA003.fm.intel.com with ESMTP; 24 Jun 2019 18:45:52 -0700 Subject: Re: [x86/hotplug] e1056a25da: WARNING:at_arch/x86/kernel/apic/apic.c:#setup_local_APIC To: Thomas Gleixner Cc: LKML , Ingo Molnar , "H. Peter Anvin" , tipbuild@zytor.com, lkp@01.org References: <20190620021856.GP7221@shao2-debian> From: Rong Chen Message-ID: <58ea508f-dc2e-8537-fe96-49cca0a7c799@intel.com> Date: Tue, 25 Jun 2019 09:46:01 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/22/19 3:08 AM, Thomas Gleixner wrote: > On Thu, 20 Jun 2019, kernel test robot wrote: > >> FYI, we noticed the following commit (built with gcc-7): >> >> commit: e1056a25daa6460c95e92d7d6853d05ad62458f7 ("x86/hotplug: Silence APIC and NMI when CPU is dead") >> https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git WIP.x86/ipi >> >> in testcase: locktorture >> with following parameters: >> >> runtime: 300s >> test: cpuhotplug >> >> test-description: This torture test consists of creating a number of kernel threads which acquire the lock and hold it for specific amount of time, thus simulating different critical region behaviors. >> test-url: https://www.kernel.org/doc/Documentation/locking/locktorture.txt >> >> >> on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 2G > I cannot reproduce that issue. What's the underlying hardware machine? brand: Genuine Intel(R) CPU 000 @ 2.27GHz model: Westmere-EX memory: 256G nr_node: 4 nr_cpu: 80 Best Regards, Rong Chen > > Thanks, > > tglx