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=-7.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 A81F0C7618F for ; Fri, 26 Jul 2019 18:08:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 86DAC22BE8 for ; Fri, 26 Jul 2019 18:08:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729128AbfGZSIp (ORCPT ); Fri, 26 Jul 2019 14:08:45 -0400 Received: from ale.deltatee.com ([207.54.116.67]:36634 "EHLO ale.deltatee.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725899AbfGZSIo (ORCPT ); Fri, 26 Jul 2019 14:08:44 -0400 Received: from s01061831bf6ec98c.cg.shawcable.net ([68.147.80.180] helo=[192.168.6.132]) by ale.deltatee.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1hr4e2-0005Y4-OJ; Fri, 26 Jul 2019 12:08:43 -0600 To: kernel test robot Cc: Jon Mason , Dave Jiang , Allen Hubbe , LKML , Linus Torvalds , lkp@01.org References: <20190726082329.GF22106@shao2-debian> From: Logan Gunthorpe Message-ID: <36d29c75-07bb-8e79-feeb-4e6dc96124df@deltatee.com> Date: Fri, 26 Jul 2019 12:08:39 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190726082329.GF22106@shao2-debian> Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 68.147.80.180 X-SA-Exim-Rcpt-To: lkp@01.org, torvalds@linux-foundation.org, linux-kernel@vger.kernel.org, allenbh@gmail.com, dave.jiang@intel.com, jdmason@kudzu.us, lkp@intel.com X-SA-Exim-Mail-From: logang@deltatee.com Subject: Re: [NTB] 26b3a37b92: WARNING:at_kernel/params.c:#param_sysfs_init X-SA-Exim-Version: 4.2.1 (built Tue, 02 Aug 2016 21:08:31 +0000) X-SA-Exim-Scanned: Yes (on ale.deltatee.com) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2019-07-26 2:23 a.m., kernel test robot wrote: > FYI, we noticed the following commit (built with gcc-4.9): > > commit: 26b3a37b928457ba2cd98eaf6d7b0feca5a30fa6 ("NTB: Introduce MSI library") > https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux.git master > > 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 > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > +----------------------------------------------+------------+------------+ > | | d217e07b32 | 26b3a37b92 | > +----------------------------------------------+------------+------------+ > | boot_successes | 4 | 0 | > | boot_failures | 0 | 4 | > | WARNING:at_kernel/params.c:#param_sysfs_init | 0 | 4 | > | RIP:param_sysfs_init | 0 | 4 | > +----------------------------------------------+------------+------------+ > Oh shoot. This confusing report is caused by me accidentally leaving the MODULE_ defines in a file that ended up not being a module. I'll send a patch ASAP. Logan