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Message-ID: <27bd3884-51d8-454f-9ddc-6b5765fd744b@collabora.com>
Date: Fri, 26 Jul 2024 15:37:20 +0530
From: Vignesh Raman <vignesh.raman@...labora.com>
To: Daniel Stone <daniel@...ishbar.org>
Cc: dri-devel@...ts.freedesktop.org, daniels@...labora.com,
 helen.koike@...labora.com, airlied@...il.com, daniel@...ll.ch,
 guilherme.gallo@...labora.com, sergi.blanch.torne@...labora.com,
 deborah.brouwer@...labora.com, robdclark@...il.com,
 linux-mediatek@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
 linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 5/5] drm/ci: rockchip: add tests for rockchip display
 driver

Hi Daniel,

On 26/07/24 13:06, Daniel Stone wrote:
> Hi Vignesh,
> 
> On Wed, 24 Jul 2024 at 11:12, Vignesh Raman <vignesh.raman@...labora.com> wrote:
>> For rockchip rk3288 and rk3399, the display driver is rockchip
>> and gpu driver is panfrost. Currently, in drm-ci for rockchip
>> rk3288 and rk3399, only the gpu driver is tested. Refactor
>> the existing rockchip jobs to test both display and gpu driver
>> and update xfails.
> 
> Could you also please add RK3588 in a new series (no need to hold this
> one up), with Rockchip KMS and Panthor GPU? You can use the
> rk3588-rock5-b device type in LAVA.

Sure. I Will add and send it in a new series.

> 
>> diff --git a/drivers/gpu/drm/ci/xfails/mediatek-mt8183-fails.txt b/drivers/gpu/drm/ci/xfails/mediatek-mt8183-fails.txt
>> index cf3a747f7cec..826cca5efbff 100644
>> --- a/drivers/gpu/drm/ci/xfails/mediatek-mt8183-fails.txt
>> +++ b/drivers/gpu/drm/ci/xfails/mediatek-mt8183-fails.txt
> 
> This is in the wrong patch?

Yes, this needs to be dropped. Thanks for pointing that out.

> 
>> +++ b/drivers/gpu/drm/ci/xfails/panfrost-rk3288-skips.txt
>> @@ -0,0 +1,71 @@
>> +# Suspend to RAM seems to be broken on this machine
>> +.*suspend.*
>> +
>> +# Too unstable, machine ends up hanging after lots of Oopses
>> +kms_cursor_legacy.*
>> +
>> +# Started hanging the machine on Linux 5.19-rc2:
>> +#
>> +# [IGT] kms_plane_lowres: executing
>> +# [IGT] kms_plane_lowres: starting subtest pipe-F-tiling-y
>> +# [IGT] kms_plane_lowres: exiting, ret=77
> 
> ret 77 is a pure skip here, as you'd expect from a pipe F test,
> because Rockchip doesn't have six CRTCs.
> 
>> +# Console: switching to colour frame buffer device 170x48
>> +# rockchip-drm display-subsystem: [drm] *ERROR* flip_done timed out
>> +# rockchip-drm display-subsystem: [drm] *ERROR* [CRTC:35:crtc-0] commit wait timed out
>> +# BUG: spinlock bad magic on CPU#3, kms_plane_lowre/482
>> +# 8<--- cut here ---
>> +# Unable to handle kernel paging request at virtual address 7812078e
>> +# [7812078e] *pgd=00000000
>> +# Internal error: Oops: 5 [#1] SMP ARM
>> +# Modules linked in:
>> +# CPU: 3 PID: 482 Comm: kms_plane_lowre Tainted: G        W         5.19.0-rc2-323596-g00535de92171 #1
>> +# Hardware name: Rockchip (Device Tree)
>> +# Process kms_plane_lowre (pid: 482, stack limit = 0x1193ac2b)
>> +#  spin_dump from do_raw_spin_lock+0xa4/0xe8
>> +#  do_raw_spin_lock from wait_for_completion_timeout+0x2c/0x120
>> +#  wait_for_completion_timeout from drm_crtc_commit_wait+0x18/0x7c
>> +#  drm_crtc_commit_wait from drm_atomic_helper_wait_for_dependencies+0x44/0x168
>> +#  drm_atomic_helper_wait_for_dependencies from commit_tail+0x34/0x180
>> +#  commit_tail from drm_atomic_helper_commit+0x164/0x18c
>> +#  drm_atomic_helper_commit from drm_atomic_commit+0xac/0xe4
>> +#  drm_atomic_commit from drm_client_modeset_commit_atomic+0x23c/0x284
>> +#  drm_client_modeset_commit_atomic from drm_client_modeset_commit_locked+0x60/0x1c8
>> +#  drm_client_modeset_commit_locked from drm_client_modeset_commit+0x24/0x40
>> +#  drm_client_modeset_commit from drm_fbdev_client_restore+0x58/0x94
>> +#  drm_fbdev_client_restore from drm_client_dev_restore+0x70/0xbc
>> +#  drm_client_dev_restore from drm_release+0xf4/0x114
>> +#  drm_release from __fput+0x74/0x240
>> +#  __fput from task_work_run+0x84/0xb4
>> +#  task_work_run from do_exit+0x34c/0xa20
>> +#  do_exit from do_group_exit+0x34/0x98
> 
> So this is pointing to the error being that, when a client exits, the
> kernel attempts to restore fbdev and then it's broken. Pinning
> pipe-F-tiling-y as specifically responsible for this seems quite odd
> to me, given that it doesn't do anything but only skips. Is that maybe
> just because it's the last test running in the kms_plane_lowres group
> before it exits? Or does it occur more wildly on other test groups?

This was skipped for Linux 5.19-rc2. I will remove from skips and will 
check the behavior.

> 
>> +tools_test@...ls_test,Fail
> 
> I keep noticing this failing everywhere. What's up with that? Have you
> reported these logs to the igt list?

I will check this issue and report to igt developers.

Thanks.

Regards,
Vignesh

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