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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, NICE_REPLY_A,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 B3CF5C2D0E4 for ; Tue, 24 Nov 2020 01:59:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 559B62072C for ; Tue, 24 Nov 2020 01:59:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726844AbgKXB7E (ORCPT ); Mon, 23 Nov 2020 20:59:04 -0500 Received: from mga09.intel.com ([134.134.136.24]:28258 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726765AbgKXB7C (ORCPT ); Mon, 23 Nov 2020 20:59:02 -0500 IronPort-SDR: 94yQUREVUOBEWxW4mB3yGiqF561E6oIN+LdUv15yM8G7NsjffB1d5O7ziz1fkI/phWir045vR1 yq1tRuyIY0Rw== X-IronPort-AV: E=McAfee;i="6000,8403,9814"; a="172033464" X-IronPort-AV: E=Sophos;i="5.78,364,1599548400"; d="scan'208";a="172033464" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Nov 2020 17:59:02 -0800 IronPort-SDR: CaDAt9UDhGHqufvBvoa2tWzXJH2+gmjDSyzErutaX0KETUJfRMe9dBT44e6c4RKVoGnROpXyEF vjfQqSpUb9Zw== X-IronPort-AV: E=Sophos;i="5.78,364,1599548400"; d="scan'208";a="478335191" Received: from xingzhen-mobl.ccr.corp.intel.com (HELO [10.238.4.68]) ([10.238.4.68]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Nov 2020 17:58:58 -0800 Subject: Re: [drm/fb] 6a1b34c0a3: WARNING:at_drivers/gpu/drm/drm_fb_helper.c:#drm_fb_helper_damage_work To: Thomas Zimmermann , kernel test robot Cc: daniel@ffwll.ch, airlied@linux.ie, sam@ravnborg.org, mripard@kernel.org, maarten.lankhorst@linux.intel.com, christian.koenig@amd.com, ville.syrjala@linux.intel.com, dri-devel@lists.freedesktop.org, 0day robot , LKML , lkp@lists.01.org References: <20201122141849.GH2390@xsang-OptiPlex-9020> <5dddb55b-cbe1-7778-3109-b84624bac407@suse.de> From: Xing Zhengjun Message-ID: Date: Tue, 24 Nov 2020 09:58:56 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.5.0 MIME-Version: 1.0 In-Reply-To: <5dddb55b-cbe1-7778-3109-b84624bac407@suse.de> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/23/2020 4:04 PM, Thomas Zimmermann wrote: > Hi > > Am 22.11.20 um 15:18 schrieb kernel test robot: >> >> Greeting, >> >> FYI, we noticed the following commit (built with gcc-9): >> >> commit: 6a1b34c0a339fdc75d7932ad5702f2177c9d7a1c ("drm/fb-helper: Move >> damage blit code and its setup into separate routine") >> url: >> https://github.com/0day-ci/linux/commits/Thomas-Zimmermann/drm-fb-helper-Various-fixes-and-cleanups/20201120-182750 >> >> >> >> in testcase: trinity >> version: trinity-static-i386-x86_64-f93256fb_2019-08-28 >> with following parameters: >> >>     runtime: 300s >> >> test-description: Trinity is a linux system call fuzz tester. >> test-url: http://codemonkey.org.uk/projects/trinity/ >> >> >> on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 >> -m 8G >> >> caused below changes (please refer to attached dmesg/kmsg for entire >> log/backtrace): > > That dmesg is full of messages like > > [  696.323556] alloc_vmap_area: 24 callbacks suppressed > [  696.323562] vmap allocation for size 3149824 failed: use > vmalloc= to increase size > > I think the test system needs to be reconfigured first. > We have tried "vmalloc=256M" and "vmalloc=512M", the same warning still happened. > Best regards > Thomas > >> >> >> +-----------------------------------------------------------------------+------------+------------+ >> >> |                                                                       | >> 154f2d1afd | 6a1b34c0a3 | >> +-----------------------------------------------------------------------+------------+------------+ >> >> | >> WARNING:at_drivers/gpu/drm/drm_fb_helper.c:#drm_fb_helper_damage_work >> | 0          | 36         | >> | >> EIP:drm_fb_helper_damage_work >> | 0          | 36         | >> +-----------------------------------------------------------------------+------------+------------+ >> >> >> >> If you fix the issue, kindly add following tag >> Reported-by: kernel test robot >> >> >> [  106.616652] WARNING: CPU: 1 PID: 173 at >> drivers/gpu/drm/drm_fb_helper.c:434 drm_fb_helper_damage_work+0x371/0x390 >> [  106.627732] Modules linked in: >> [  106.632419] CPU: 1 PID: 173 Comm: kworker/1:2 Not tainted >> 5.10.0-rc4-next-20201120-00007-g6a1b34c0a339 #3 >> [  106.637806] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), >> BIOS 1.12.0-1 04/01/2014 >> [  106.642853] Workqueue: events drm_fb_helper_damage_work >> [  106.647664] EIP: drm_fb_helper_damage_work+0x371/0x390 >> [  106.652305] Code: b1 17 c7 01 68 bd 5b 2d c5 53 50 68 55 21 2d c5 >> 83 15 44 b1 17 c7 00 e8 ae bc b1 01 83 05 48 b1 17 c7 01 83 15 4c b1 >> 17 c7 00 <0f> 0b 83 05 50 b1 17 c7 01 83 15 54 b1 17 c7 00 83 c4 10 e9 >> 78 fd >> [  106.663517] EAX: 0000002d EBX: c8730520 ECX: 00000847 EDX: 00000000 >> [  106.668423] ESI: ca987000 EDI: cab274d8 EBP: f62f5f20 ESP: f62f5ee8 >> [  106.673214] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: >> 00010246 >> [  106.678295] CR0: 80050033 CR2: 00000000 CR3: 063a7000 CR4: 000406d0 >> [  106.683160] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 >> [  106.687967] DR6: fffe0ff0 DR7: 00000400 >> [  106.690763] Call Trace: >> [  106.693394]  process_one_work+0x3ea/0xaa0 >> [  106.693501] ixgbevf: Intel(R) 10 Gigabit PCI Express Virtual >> Function Network Driver >> [  106.695300]  worker_thread+0x330/0x900 >> [  106.697406] ixgbevf: Copyright (c) 2009 - 2018 Intel Corporation. >> [  106.702963]  kthread+0x190/0x210 >> [  106.705709]  ? rescuer_thread+0x650/0x650 >> [  106.708379]  ? kthread_insert_work_sanity_check+0x120/0x120 >> [  106.711271]  ret_from_fork+0x1c/0x30 >> [  106.713973] ---[ end trace dd528799d3369ac1 ]--- >> >> >> To reproduce: >> >>          # build kernel >>     cd linux >>     cp config-5.10.0-rc4-next-20201120-00007-g6a1b34c0a339 .config >>     make HOSTCC=gcc-9 CC=gcc-9 ARCH=i386 olddefconfig prepare >> modules_prepare bzImage >> >>          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 >> >> >> >> Thanks, >> Oliver Sang >> > > > _______________________________________________ > LKP mailing list -- lkp@lists.01.org > To unsubscribe send an email to lkp-leave@lists.01.org > -- Zhengjun Xing