lkml.org 
[lkml]   [2020]   [Nov]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [drm/fb] 6a1b34c0a3: WARNING:at_drivers/gpu/drm/drm_fb_helper.c:#drm_fb_helper_damage_work
From
Date
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=<size> to increase size

I think the test system needs to be reconfigured first.

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 <oliver.sang@intel.com>
>
>
> [ 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 <bzImage> job-script # job-script is attached in this email
>
>
>
> Thanks,
> Oliver Sang
>

--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
[unhandled content-type:application/pgp-keys][unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2020-11-23 09:06    [W:0.071 / U:0.356 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site