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=-6.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS,URIBL_BLOCKED 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 28E88C43387 for ; Thu, 20 Dec 2018 02:26:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EDA982075B for ; Thu, 20 Dec 2018 02:26:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730064AbeLTC0l (ORCPT ); Wed, 19 Dec 2018 21:26:41 -0500 Received: from mga04.intel.com ([192.55.52.120]:62651 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729024AbeLTC0l (ORCPT ); Wed, 19 Dec 2018 21:26:41 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 19 Dec 2018 18:26:40 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,375,1539673200"; d="scan'208";a="305270756" Received: from shao2-debian.sh.intel.com (HELO [10.239.13.6]) ([10.239.13.6]) by fmsmga005.fm.intel.com with ESMTP; 19 Dec 2018 18:26:40 -0800 Subject: Re: [LKP] [xarray] 4e99d4e957: BUG:soft_lockup-CPU##stuck_for#s From: Rong Chen To: Matthew Wilcox Cc: lkp@01.org, Linus Torvalds , LKML References: <20181211095441.GR23332@shao2-debian> <20181211142947.GC6830@bombadil.infradead.org> Message-ID: <033d5570-5f05-88a1-8196-46fa75967dad@intel.com> Date: Thu, 20 Dec 2018 10:26:52 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/19/2018 05:54 PM, Rong Chen wrote: > > > On 12/11/2018 10:29 PM, Matthew Wilcox wrote: >> On Tue, Dec 11, 2018 at 05:54:41PM +0800, kernel test robot wrote: >>> # To reproduce, >>> # 1) save job-script and this script (both are attached in 0day >>> report email) >>> # 2) run this script with your compiled kernel and optional env >>> $INSTALL_MOD_PATH >>> >>> kernel=$1 >>> >>> initrds=( >>>     /osimage/yocto/yocto-tiny-i386-2016-04-22.cgz >>>     /lkp/lkp/lkp-i386.cgz >>>     /osimage/deps/debian-x86_64-2016-08-31.cgz/run-ipconfig.i386_2016-09-03.cgz >>> >>> ) >>> >>> HTTP_PREFIX=https://download.01.org/0day-ci/lkp-qemu >>> wget --timestamping "${initrds[@]/#/$HTTP_PREFIX}" >>> >>> { >>>     cat "${initrds[@]//*\//}" >>>     [[ $INSTALL_MOD_PATH ]] && ( >>>         cd "$INSTALL_MOD_PATH" >>> >>> >>> To reproduce: >>> >>>          git clone https://github.com/intel/lkp-tests.git >>>          cd lkp-tests >>>          bin/lkp qemu -k job-script # job-script is >>> attached in this email >> When I do this, the only output I get is: >> >> make: Entering directory '/home/willy/kernel/lkp-tests/bin/event' >> gcc    -c -o wakeup.o wakeup.c >> gcc  -static -o wakeup wakeup.o >> rm -f wakeup.o >> strip wakeup >> make: Leaving directory '/home/willy/kernel/lkp-tests/bin/event' >> >> Running under sh -x, I get as far as: >> >> + exec /home/willy/kernel/lkp-tests/lkp-exec/qemu -k >> ../idrext/.build-yocto/arch/x86/boot/bzImage job-script >> >> Editing that script to set -x, I get to: >> >> + /home/willy/kernel/lkp-tests/sbin/pack -f -a x86_64 lkp-src >> make: Entering directory '/home/willy/kernel/lkp-tests/bin/event' >> gcc    -c -o wakeup.o wakeup.c >> gcc  -static -o wakeup wakeup.o >> rm -f wakeup.o >> strip wakeup >> make: Leaving directory '/home/willy/kernel/lkp-tests/bin/event' >> + exit >> >> which would seem to indicate your 'pack' command failed with a non-zero >> exit code?  Adding set -x to _that_ script gives me: >> >> + find . -type d -exec chmod g+rwx '{}' ';' >> + chmod -R g+rw etc lib root usr >> + '[' -d /osimage/addon-x86_64 ']' >> + gzip -n -9 /home/willy/.lkp/cache/lkp-x86_64.cpio >> + mv -f /home/willy/.lkp/cache/lkp-x86_64.cpio.gz >> /home/willy/.lkp/cache/lkp-x86_64.cgz >> + [[ -n '' ]] >> + [[ -n '' ]] >> + exit >> >> I'm using your top-of-tree lkp-tests, commit >> e28c726dfe85e3e595ba4776a4eb92f2559d3ac0 >> >> By the way, I took this kernel config and ran it under one of your other >> test cases (the one which runs Trinity) and didn't see a boot problem, >> so either it's something specific to this setup, or the problem got >> fixed between this commit and current top-of-tree. > > Please accept my apologies for taking your time, the reproduce tool > was broken for a long time, and it's fixed now. > if it can't be reproduced, here is the original > bzImage(https://download.01.org/0day-ci/lkp-qemu/fbc/4e99d4e9579d3b950bf4b38d0d64eb1b9be78761/). Hi, It should be a false positive too, The test VM are usually overloaded much to improve test density, we will pay attention to the issue. Best Regards, Rong Chen