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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id EAA4EC433EF for ; Thu, 5 May 2022 10:12:18 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 38DBB6B0071; Thu, 5 May 2022 06:12:18 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 33DD56B0073; Thu, 5 May 2022 06:12:18 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 205D86B0074; Thu, 5 May 2022 06:12:18 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 0EE996B0071 for ; Thu, 5 May 2022 06:12:18 -0400 (EDT) Received: from smtpin31.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id D0F112D420 for ; Thu, 5 May 2022 10:12:17 +0000 (UTC) X-FDA: 79431274314.31.9AF2020 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by imf15.hostedemail.com (Postfix) with ESMTP id E20BBA0088 for ; Thu, 5 May 2022 10:12:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1651745535; x=1683281535; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=cRZWbElP4dFT+XNyGmAAV3ScG1Vp3t5AsXCPagsnMpA=; b=U9lhEz5aiRqlzIXhcIw3Hze49KeIVyr/RZIM/qwCVMIZiPg3yBhDD3Oy ViCEo4/GW8pUXttd77UU1SpPJ/pkJ3u0W1SURTBp+AAzFqT/zQvxADKTm 53nrtzmeE0hc1pRZo1KwPO5BdqxTlb8hjFBiB/omM9DLJPB3PaxH3BU9J T+hnnnsPXATkaiwDiq39aij+xU+KoPRyZYNTnRqyvQ0gnDds13SVkeywH UcqfEA0PuncfGYVQ5Daa2M5qrT/x1EQmR2NfaDE55Y3rG5U7bVhpgO/Xa CvLmmUinxmiegC8eeeRuoIUfO+taZdiQcoLonvcNVDJR+KFN+9X5C02dv w==; X-IronPort-AV: E=McAfee;i="6400,9594,10337"; a="268213935" X-IronPort-AV: E=Sophos;i="5.91,200,1647327600"; d="scan'208";a="268213935" 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 Authentication-Results: imf15.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=U9lhEz5a; dmarc=pass (policy=none) header.from=intel.com; spf=none (imf15.hostedemail.com: domain of andriy.shevchenko@linux.intel.com has no SPF policy when checking 192.55.52.115) smtp.mailfrom=andriy.shevchenko@linux.intel.com X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: E20BBA0088 X-Rspam-User: X-Stat-Signature: 3iqstico8ez3ig7fp8x4pggkkzd4hput X-HE-Tag: 1651745525-347288 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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