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=-10.2 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 0A257C64E7B for ; Thu, 3 Dec 2020 09:34:55 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 291DB22242 for ; Thu, 3 Dec 2020 09:34:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 291DB22242 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 2EF356B005C; Thu, 3 Dec 2020 04:34:53 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 29F216B005D; Thu, 3 Dec 2020 04:34:53 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 169A66B0068; Thu, 3 Dec 2020 04:34:53 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0240.hostedemail.com [216.40.44.240]) by kanga.kvack.org (Postfix) with ESMTP id 00A7B6B005C for ; Thu, 3 Dec 2020 04:34:52 -0500 (EST) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id BE83ADE14 for ; Thu, 3 Dec 2020 09:34:52 +0000 (UTC) X-FDA: 77551461624.13.cart70_0007927273ba Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin13.hostedemail.com (Postfix) with ESMTP id 9E92418140B67 for ; Thu, 3 Dec 2020 09:34:52 +0000 (UTC) X-HE-Tag: cart70_0007927273ba X-Filterd-Recvd-Size: 13036 Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by imf10.hostedemail.com (Postfix) with ESMTP for ; Thu, 3 Dec 2020 09:34:52 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id C5581AC55; Thu, 3 Dec 2020 09:34:50 +0000 (UTC) To: Oliver Sang Cc: Sam Ravnborg , Maxime Ripard , LKML , Linux Memory Management List , lkp@lists.01.org, lkp@intel.com References: <20201202022936.GA12321@xsang-OptiPlex-9020> <20201203083629.GH27350@xsang-OptiPlex-9020> From: Thomas Zimmermann Subject: Re: [drm/fb] 1d46491d4a: WARNING:at_drivers/gpu/drm/drm_fb_helper.c:#drm_fb_helper_damage_work[drm_kms_helper] Message-ID: Date: Thu, 3 Dec 2020 10:34:49 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.5.0 MIME-Version: 1.0 In-Reply-To: <20201203083629.GH27350@xsang-OptiPlex-9020> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="D9DwTcKceD3yx7fzSO6j8ODI1Av91HWfc" 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: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --D9DwTcKceD3yx7fzSO6j8ODI1Av91HWfc Content-Type: multipart/mixed; boundary="jeUAEGX86NLKSys6FZjR8hVrTdXHxOrcR"; protected-headers="v1" From: Thomas Zimmermann To: Oliver Sang Cc: Sam Ravnborg , Maxime Ripard , LKML , Linux Memory Management List , lkp@lists.01.org, lkp@intel.com Message-ID: Subject: Re: [drm/fb] 1d46491d4a: WARNING:at_drivers/gpu/drm/drm_fb_helper.c:#drm_fb_helper_damage_work[drm_kms_helper] References: <20201202022936.GA12321@xsang-OptiPlex-9020> <20201203083629.GH27350@xsang-OptiPlex-9020> In-Reply-To: <20201203083629.GH27350@xsang-OptiPlex-9020> --jeUAEGX86NLKSys6FZjR8hVrTdXHxOrcR Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable Hi Am 03.12.20 um 09:36 schrieb Oliver Sang: > On Thu, Dec 03, 2020 at 08:41:49AM +0100, Thomas Zimmermann wrote: >> Hi >> >> there should be a line in the kernel log that says something like "Dam= age >> blitter failed" with an error code. Is there any chance of recovering = it? >> >=20 > Hi Thomas, >=20 > we attached dmesg in original report, where below comes from. >=20 > [ 28.258177] ------------[ cut here ]------------ > [ 28.259527] bochs-drm 0000:00:02.0: Damage blitter failed: ret=3D-12= Thanks, that's the line I was looking for. Errno 12 means out-of-memory. = It's not something related to the fbdev code, but rather another=20 instance of the test system running out of memory. Presumably, it comes=20 from [1]. Best regards Thomas [1]=20 https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/= drivers/gpu/drm/ttm/ttm_bo_util.c?id=3D1d46491d4a08d7ee657e09808f87d16944= 4a2652#n475 > [ 28.261007] WARNING: CPU: 0 PID: 122 at drivers/gpu/drm/drm_fb_helpe= r.c:434 drm_fb_helper_damage_work+0x109/0x2d0 [drm_kms_helper] > [ 28.263802] Modules linked in: locktorture(E) torture(E) mousedev(E)= ppdev(E) psmouse(E) crc32c_intel(E) input_leds(E) bochs_drm(E) drm_vram_= helper(E) drm_ttm_helper(E) ttm(E) drm_kms_helper(E) parport_pc(E) rtc_cm= os(E) parport(E) drm(E) evbug(E) i6300esb(E) i2c_piix4(E) autofs4(E) > [ 28.271897] CPU: 0 PID: 122 Comm: kworker/0:2 Tainted: G = E 5.10.0-rc3-01102-g1d46491d4a08 #1 > [ 28.273904] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), B= IOS 1.12.0-1 04/01/2014 > [ 28.275819] Workqueue: events drm_fb_helper_damage_work [drm_kms_hel= per] > [ 28.279884] EIP: drm_fb_helper_damage_work+0x109/0x2d0 [drm_kms_help= er] >=20 >=20 >> Best regards >> Thomas >> >> Am 02.12.20 um 03:29 schrieb kernel test robot: >>> >>> Greeting, >>> >>> FYI, we noticed the following commit (built with gcc-9): >>> >>> commit: 1d46491d4a08d7ee657e09808f87d169444a2652 ("drm/fb-helper: Mov= e damage blit code and its setup into separate routine") >>> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git mast= er >>> >>> >>> in testcase: locktorture >>> version: >>> 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/locktortur= e.txt >>> >>> >>> 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): >>> >>> >>> +--------------------------------------------------------------------= -------------------+------------+------------+ >>> | = | fd2d856538 | 1d46491d4a | >>> +--------------------------------------------------------------------= -------------------+------------+------------+ >>> | WARNING:at_drivers/gpu/drm/drm_fb_helper.c:#drm_fb_helper_damage_wo= rk[drm_kms_helper] | 0 | 26 | >>> | EIP:drm_fb_helper_damage_work = | 0 | 26 | >>> +--------------------------------------------------------------------= -------------------+------------+------------+ >>> >>> >>> If you fix the issue, kindly add following tag >>> Reported-by: kernel test robot >>> >>> >>> [ 28.261007] WARNING: CPU: 0 PID: 122 at drivers/gpu/drm/drm_fb_hel= per.c:434 drm_fb_helper_damage_work+0x109/0x2d0 [drm_kms_helper] >>> [ 28.263802] Modules linked in: locktorture(E) torture(E) mousedev(= E) ppdev(E) psmouse(E) crc32c_intel(E) input_leds(E) bochs_drm(E) drm_vra= m_helper(E) drm_ttm_helper(E) ttm(E) drm_kms_helper(E) parport_pc(E) rtc_= cmos(E) parport(E) drm(E) evbug(E) i6300esb(E) i2c_piix4(E) autofs4(E) >>> [ 28.271897] CPU: 0 PID: 122 Comm: kworker/0:2 Tainted: G = E 5.10.0-rc3-01102-g1d46491d4a08 #1 >>> [ 28.273904] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),= BIOS 1.12.0-1 04/01/2014 >>> [ 28.275819] Workqueue: events drm_fb_helper_damage_work [drm_kms_h= elper] >>> [ 28.279884] EIP: drm_fb_helper_damage_work+0x109/0x2d0 [drm_kms_he= lper] >>> [ 28.281467] Code: 47 10 8b 58 2c 85 db 0f 84 bc 01 00 00 e8 1f f0 = da f4 89 74 24 0c 89 5c 24 08 89 44 24 04 c7 04 24 98 c1 40 df e8 f7 50 1= d f5 <0f> 0b 31 c9 c7 04 24 01 00 00 00 ba 01 00 00 00 b8 3c e8 40 df e8 >>> [ 28.285055] EAX: 00000036 EBX: c1c91420 ECX: 00000000 EDX: 0000000= 0 >>> [ 28.289443] ESI: fffffff4 EDI: d2014000 EBP: d2c0dee4 ESP: d2c0de9= c >>> [ 28.291058] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 0= 0010292 >>> [ 28.292717] CR0: 80050033 CR2: b727a028 CR3: 12141000 CR4: 0004069= 0 >>> [ 28.294316] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 0000000= 0 >>> [ 28.295915] DR6: fffe0ff0 DR7: 00000400 >>> [ 28.300768] Call Trace: >>> [ 28.302117] process_one_work+0x31b/0x7b0 >>> [ 28.303532] ? process_one_work+0x272/0x7b0 >>> [ 28.304976] worker_thread+0x29a/0x5d0 >>> [ 28.308712] ? process_one_work+0x7b0/0x7b0 >>> [ 28.310129] kthread+0x181/0x1a0 >>> [ 28.311464] ? process_one_work+0x7b0/0x7b0 >>> [ 28.312878] ? kthread_create_worker_on_cpu+0x30/0x30 >>> [ 28.314318] ret_from_fork+0x1c/0x28 >>> [ 28.315645] CPU: 0 PID: 122 Comm: kworker/0:2 Tainted: G = E 5.10.0-rc3-01102-g1d46491d4a08 #1 >>> [ 28.317414] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),= BIOS 1.12.0-1 04/01/2014 >>> [ 28.319096] Workqueue: events drm_fb_helper_damage_work [drm_kms_h= elper] >>> [ 28.320674] Call Trace: >>> [ 28.321947] dump_stack+0x6d/0x8b >>> [ 28.323278] __warn.cold+0x24/0x49 >>> [ 28.324639] ? drm_fb_helper_damage_work+0x109/0x2d0 [drm_kms_help= er] >>> [ 28.326167] ? drm_fb_helper_damage_work+0x109/0x2d0 [drm_kms_help= er] >>> [ 28.327670] ? drm_fb_helper_damage_work+0x109/0x2d0 [drm_kms_help= er] >>> [ 28.329165] report_bug+0xb0/0xf0 >>> [ 28.330438] ? irq_work_queue+0x13/0x70 >>> [ 28.331729] ? exc_overflow+0x60/0x60 >>> [ 28.333002] handle_bug+0x2a/0x50 >>> [ 28.334227] exc_invalid_op+0x28/0x80 >>> [ 28.335462] handle_exception+0x15d/0x15d >>> [ 28.336729] EIP: drm_fb_helper_damage_work+0x109/0x2d0 [drm_kms_he= lper] >>> [ 28.338148] Code: 47 10 8b 58 2c 85 db 0f 84 bc 01 00 00 e8 1f f0 = da f4 89 74 24 0c 89 5c 24 08 89 44 24 04 c7 04 24 98 c1 40 df e8 f7 50 1= d f5 <0f> 0b 31 c9 c7 04 24 01 00 00 00 ba 01 00 00 00 b8 3c e8 40 df e8 >>> [ 28.341442] EAX: 00000036 EBX: c1c91420 ECX: 00000000 EDX: 0000000= 0 >>> [ 28.342910] ESI: fffffff4 EDI: d2014000 EBP: d2c0dee4 ESP: d2c0de9= c >>> [ 28.344372] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 0= 0010292 >>> [ 28.345883] ? cpu_latency_qos_write+0xeb/0xf0 >>> [ 28.347203] ? run_init_process+0x5b/0x158 >>> [ 28.348483] ? run_init_process+0x5b/0x158 >>> [ 28.349714] ? exc_overflow+0x60/0x60 >>> [ 28.350895] ? drm_fb_helper_damage_work+0x109/0x2d0 [drm_kms_help= er] >>> [ 28.352244] process_one_work+0x31b/0x7b0 >>> [ 28.353432] ? process_one_work+0x272/0x7b0 >>> [ 28.354599] worker_thread+0x29a/0x5d0 >>> [ 28.355730] ? process_one_work+0x7b0/0x7b0 >>> [ 28.356894] kthread+0x181/0x1a0 >>> [ 28.357942] ? process_one_work+0x7b0/0x7b0 >>> [ 28.359019] ? kthread_create_worker_on_cpu+0x30/0x30 >>> [ 28.360134] ret_from_fork+0x1c/0x28 >>> [ 28.376652] irq event stamp: 9469 >>> [ 28.377678] hardirqs last enabled at (9477): [] console= _unlock+0x515/0x650 >>> [ 28.378986] hardirqs last disabled at (9484): [] console= _unlock+0x425/0x650 >>> [ 28.380284] softirqs last enabled at (9464): [] __do_so= ftirq+0x3fd/0x57c >>> [ 28.381595] softirqs last disabled at (9381): [] call_on= _stack+0x4c/0x60 >>> [ 28.382878] ---[ end trace b5fac24d1c204ab3 ]--- >>> >>> >>> To reproduce: >>> >>> # build kernel >>> cd linux >>> cp config-5.10.0-rc3-01102-g1d46491d4a08 .config >>> make HOSTCC=3Dgcc-9 CC=3Dgcc-9 ARCH=3Di386 olddefconfig prepare modu= les_prepare bzImage modules >>> make HOSTCC=3Dgcc-9 CC=3Dgcc-9 ARCH=3Di386 INSTALL_MOD_PATH=3D modules_install >>> cd >>> find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz >>> >>> >>> git clone https://github.com/intel/lkp-tests.git >>> cd lkp-tests >>> bin/lkp qemu -k -m modules.cgz job-script # job-s= cript is attached in this email >>> >>> >>> >>> Thanks, >>> Oliver Sang >>> >> >> --=20 >> Thomas Zimmermann >> Graphics Driver Developer >> SUSE Software Solutions Germany GmbH >> Maxfeldstr. 5, 90409 N=C3=BCrnberg, Germany >> (HRB 36809, AG N=C3=BCrnberg) >> Gesch=C3=A4ftsf=C3=BChrer: Felix Imend=C3=B6rffer >> >=20 >=20 >=20 --=20 Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 N=C3=BCrnberg, Germany (HRB 36809, AG N=C3=BCrnberg) Gesch=C3=A4ftsf=C3=BChrer: Felix Imend=C3=B6rffer --jeUAEGX86NLKSys6FZjR8hVrTdXHxOrcR-- --D9DwTcKceD3yx7fzSO6j8ODI1Av91HWfc Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature" -----BEGIN PGP SIGNATURE----- wsF5BAABCAAjFiEExndm/fpuMUdwYFFolh/E3EQov+AFAl/IsTkFAwAAAAAACgkQlh/E3EQov+AB Pw//WlHYyOqvNHMV03nGI6YlEYNYAOiB2/FkIWUVeuxn3/lCWPn+vPCCGLprFs1Q5+rHVxKHdKsz RY0QgsdCZTsuUrqFNs4EhLXZL2Ghj22dzMTs182lpfT7Purd8siu2bxAs4IZNih/if61ZX44uPC9 Oug+ABltHHfkDGklqRGRqbfGlfiCFfxKl659bHUAE51j7rOX976BpAGARf7+Lo2EzlaQvafKz/Ys sH5x2jJXnfGAsyhcrlAWq2SRdl7Tql/mSp+v6P/AhfLrN/W/uZooEkGOwUrzlhGXIMHRv9b89IZa PstS7N3rfV2/7wukge7CL2nMNpt7G5fZxCLZgCQOn3H4q6gawr6pjAmQD9OJYk+j4MSutJRB86Wd ozwttN5/KzNNjMUNFU4BNEOnNZQrOA+NjK9e8Yf2BphAHAyN7VKSaJcUcVNdIFXm72Erfn8JZMMr 63bDXsHiqRvMiHh2Db+VA/L25178y9t6Rlsvp816XY8J8N5phCizG45PfhUsjpD6hg6bMC4zZIch VnaCM5IaltIRv171kFjQGJWr+Vp+twxgEtBPCXBntzzGBbVdA+R2ETZfLbVuufp5FoprUO8Jn5fs W4QsoN+RuDSZM37+ETzLMMA3XrQmw09xlJL8IOreTr6YPYyLHPjmqFSEUsap59YBOENKdtEzldOt 57o= =qAmz -----END PGP SIGNATURE----- --D9DwTcKceD3yx7fzSO6j8ODI1Av91HWfc--