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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83FC2C433FE for ; Thu, 5 May 2022 10:12:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355095AbiEEKP5 (ORCPT ); Thu, 5 May 2022 06:15:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53218 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354964AbiEEKPw (ORCPT ); Thu, 5 May 2022 06:15:52 -0400 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7947450E36 for ; Thu, 5 May 2022 03:12:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1651745533; x=1683281533; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=cRZWbElP4dFT+XNyGmAAV3ScG1Vp3t5AsXCPagsnMpA=; b=iruO502LKAiUcoPtHb7Iy5iYGGJjMfPY2X4rKHH4qsSW0bLeHvWK/d+2 sxk4GQJ//8CfMoBjezihzI58QcJYu12TFB8+ozgCzp9Nvj7F6A1Wd92IB PtPwVo9YK58CN3AJYmfBGLr7ve9eQ9+TDiRdmOBzH2sr0W5mFy+IjK6N4 nq03ilDkthSeoiJo7V9BCQi6NET7IKrSjzbQrkWQKBj/qA2O6HFVtl/e8 sZMja2mKLhxb8HsxvfqQZ1JhaoMc5f4Hw7f1APyj1RamjMwl/UeKNSimv lQ9hX9Wq64bYLiS3d7vakCKgF9lH6nkMpD60jKJQ/poE58yhnKKbRvST1 g==; X-IronPort-AV: E=McAfee;i="6400,9594,10337"; a="268213934" X-IronPort-AV: E=Sophos;i="5.91,200,1647327600"; d="scan'208";a="268213934" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 May 2022 03:12:13 -0700 X-IronPort-AV: E=Sophos;i="5.91,201,1647327600"; d="scan'208";a="549290986" Received: from smile.fi.intel.com ([10.237.72.54]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 May 2022 03:12:10 -0700 Received: from andy by smile.fi.intel.com with local (Exim 4.95) (envelope-from ) id 1nmYSt-00CEmE-KK; Thu, 05 May 2022 13:12:07 +0300 Date: Thu, 5 May 2022 13:12:07 +0300 From: Andy Shevchenko To: kernel test robot Cc: Emil Renner Berthing , Greg Kroah-Hartman , Geert Uytterhoeven , Miquel Raynal , LKML , Linux Memory Management List , lkp@lists.01.org, lkp@intel.com Subject: Re: [serial] 4a218b277f: BUG:kernel_NULL_pointer_dereference,address Message-ID: References: <20220505091843.GD10410@xsang-OptiPlex-9020> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220505091843.GD10410@xsang-OptiPlex-9020> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 05, 2022 at 05:18:43PM +0800, kernel test robot wrote: > > > Greeting, > > FYI, we noticed the following commit (built with gcc-11): > > commit: 4a218b277fdba357d8e9022ae675c94e59d64b4e ("serial: 8250: dw: Create a generic platform data structure") > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master > > in testcase: reaim > version: reaim-x86_64-7.0.1.13-1_20220411 > with following parameters: > > runtime: 300s > nr_task: 100% > test: shared > cpufreq_governor: performance > ucode: 0xec > > test-description: REAIM is an updated and improved version of AIM 7 benchmark. > test-url: https://sourceforge.net/projects/re-aim-7/ > > > on test machine: 16 threads 1 sockets Intel(R) Xeon(R) E-2278G CPU @ 3.40GHz with 32G memory > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > +----------------+------------+------------+ > | | d9666dfb31 | 4a218b277f | > +----------------+------------+------------+ > | boot_successes | 6 | 6 | > +----------------+------------+------------+ > > > If you fix the issue, kindly add following tag > Reported-by: kernel test robot Isn't it what Heikki's patch should fix? -- With Best Regards, Andy Shevchenko