Re: [drm/fb] 6a1b34c0a3: WARNING:at_drivers/gpu/drm/drm_fb_helper.c:#drm_fb_helper_damage_work

[Thomas Zimmermann <tzimmermann@xxxxxxx>]

Hi

Am 24.11.20 um 02:58 schrieb Xing Zhengjun:
> 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=<size> 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.

OK, then I don't know. Thanks for testing.

Best regards
Thomas

> > 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@xxxxxxxxx>
> > >
> > >
> > > [  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
> >
> >
> > _______________________________________________
> > LKP mailing list -- lkp@xxxxxxxxxxxx
> > To unsubscribe send an email to lkp-leave@xxxxxxxxxxxx

--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

Attachment: OpenPGP_0x680DC11D530B7A23.asc
Description: application/pgp-keys

Attachment: OpenPGP_signature
Description: OpenPGP digital signature

_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel