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SubjectRe: [PATCH v5 0/8] drm: rcar-du: Add Color Management Module (CMM)
Hi Jacopo,

On Fri, Jun 12, 2020 at 05:12:09PM +0200, Jacopo Mondi wrote:
> On Mon, Jun 08, 2020 at 11:44:32AM +0200, Eugeniu Rosca wrote:
> > FWIW, I seem to hit pre-existing issues in vanilla rcar-du,
> > while unplugging HDMI cable during a cyclic suspend-resume:
> >
> > HW: H3 ES2.0 Salvator-X
> > SW: renesas-drivers-2020-06-02-v5.7
> > .config: renesas_defconfig +CONFIG_PM_DEBUG +CONFIG_PM_ADVANCED_DEBUG
> > Use-case:
> >
> > --------8<---------
> > $ cat s2ram.sh
> > modprobe i2c-dev
> > echo 9 > /proc/sys/kernel/printk
> > i2cset -f -y 7 0x30 0x20 0x0F
>
> According to
> https://elinux.org/R-Car/Boards/Salvator-X#Suspend-to-RAM
> this is not needed anymore

Good to know. Thanks for the useful remark.

> > echo 0 > /sys/module/suspend/parameters/pm_test_delay
> > echo core > /sys/power/pm_test
> > echo deep > /sys/power/mem_sleep
> > echo 1 > /sys/power/pm_debug_messages
> > echo 0 > /sys/power/pm_print_times
> > echo mem > /sys/power/state
> >
> > $ while true; do sh s2ram.sh ; done
> > $ # unplug HDMI cable several times
>
> I tried unplugging an plugging the cable while the system was
> suspended and after resume but I was not able to reproduce anything.

Your comment sounds like you suspended the system once and resumed it
afterwards, while my description mentions "cyclic" :), meaning:

$ while true; do sh s2ram.sh; done
$ # connect-disconnect the hdmi display a couple of times
$ # NOTE: to avoid this manual step, I am thinking of a USB-controlled
HDMI switcher long-term

>
> Could you provide more precise instructions on how to reproduce this ?
> I.e. when to disconnect the cable to trigger the below error.

See above :)

BTW, using renesas-drivers-2020-06-02-v5.7 as base and performing the
use-case just described, I got today (with minimal effort):

[ 459.321733] Enabling non-boot CPUs ...
[ 459.331132] Detected PIPT I-cache on CPU1
[ 459.331189] CPU1: Booted secondary processor 0x0000000001 [0x411fd073]
[ 459.332312] CPU1 is up
[ 459.345635] Detected PIPT I-cache on CPU2
[ 459.345671] CPU2: Booted secondary processor 0x0000000002 [0x411fd073]
[ 459.346624] CPU2 is up
[ 459.359912] Detected PIPT I-cache on CPU3
[ 459.359942] CPU3: Booted secondary processor 0x0000000003 [0x411fd073]
[ 459.360918] CPU3 is up
[ 459.374183] Detected VIPT I-cache on CPU4
[ 459.374252] CPU4: Booted secondary processor 0x0000000100 [0x410fd034]
[ 459.375875] cpufreq: cpufreq_online: CPU4: Running at unlisted freq: 1199999 KHz
[ 459.394204] cpufreq: cpufreq_online: CPU4: Unlisted initial frequency changed to: 1200000 KHz
[ 459.403879] CPU4 is up
[ 459.406469] Detected VIPT I-cache on CPU5
[ 459.406519] CPU5: Booted secondary processor 0x0000000101 [0x410fd034]
[ 459.408520] CPU5 is up
[ 459.421762] Detected VIPT I-cache on CPU6
[ 459.421810] CPU6: Booted secondary processor 0x0000000102 [0x410fd034]
[ 459.423831] CPU6 is up
[ 459.437114] Detected VIPT I-cache on CPU7
[ 459.437164] CPU7: Booted secondary processor 0x0000000103 [0x410fd034]
[ 459.439258] CPU7 is up
[ 459.456217] PM: noirq resume of devices complete after 3.878 msecs
[ 459.471529] PM: early resume of devices complete after 8.590 msecs
[ 469.726906] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CRTC:76:crtc-3] flip_done timed out
[ 479.966889] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CONNECTOR:78:VGA-1] flip_done timed out
[ 490.206887] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [PLANE:34:plane-1] flip_done timed out
[ 490.282873] rcar-du feb00000.display: page flip timeout
[ 490.288431] ------------[ cut here ]------------
[ 490.293092] WARNING: CPU: 0 PID: 123 at drivers/gpu/drm/rcar-du/rcar_du_crtc.c:787 rcar_du_crtc_atomic_begin+0x64/0x70
[ 490.303854] Modules linked in:
[ 490.306933] CPU: 0 PID: 123 Comm: irq/192-fead000 Not tainted 5.7.0-arm64-renesas-00012-gbc5411732961 #131
[ 490.316647] Hardware name: Renesas Salvator-X board based on r8a77951 (DT)
[ 490.323568] pstate: 20000005 (nzCv daif -PAN -UAO BTYPE=--)
[ 490.329176] pc : rcar_du_crtc_atomic_begin+0x64/0x70
[ 490.334174] lr : drm_atomic_helper_commit_planes+0x70/0x220
[ 490.339781] sp : ffff80001258b960
[ 490.343115] x29: ffff80001258b960 x28: 0000000000000038
[ 490.348463] x27: ffff0006f676a800 x26: ffff8000111c3718
[ 490.353811] x25: ffff0006f5e574c0 x24: ffff0006f6728000
[ 490.359157] x23: 0000000000000038 x22: 0000000000000000
[ 490.364503] x21: 0000000000000001 x20: 0000000000000002
[ 490.369849] x19: ffff0006f5e58e08 x18: ffffffffffffffff
[ 490.375195] x17: 0000000000000000 x16: 0000000000000000
[ 490.380541] x15: ffff8000111c09c8 x14: 0000000000000000
[ 490.385887] x13: 0000000000000000 x12: 0000000000000000
[ 490.391233] x11: 0000000000000000 x10: 0000000000000000
[ 490.396579] x9 : 0000000000000000 x8 : 0000000000000000
[ 490.401924] x7 : 0000000000000000 x6 : ffff0006f5e5aab8
[ 490.407270] x5 : 0000000000003a8b x4 : ffff0006f3154438
[ 490.412616] x3 : ffff0006f6728000 x2 : ffff800010649338
[ 490.417962] x1 : ffff0006f228dc00 x0 : 0000000000000000
[ 490.423308] Call trace:
[ 490.425771] rcar_du_crtc_atomic_begin+0x64/0x70
[ 490.430418] drm_atomic_helper_commit_planes+0x70/0x220
[ 490.435678] rcar_du_atomic_commit_tail+0xa0/0xd8
[ 490.440412] commit_tail+0x9c/0x160
[ 490.443924] drm_atomic_helper_commit+0x178/0x190
[ 490.448661] drm_atomic_commit+0x48/0x58
[ 490.452611] drm_client_modeset_commit_atomic+0x18c/0x280
[ 490.458045] drm_client_modeset_commit_locked+0x50/0x1e0
[ 490.463390] drm_client_modeset_commit+0x2c/0x50
[ 490.468040] drm_fb_helper_restore_fbdev_mode_unlocked+0x74/0xe8
[ 490.474085] drm_fb_helper_set_par+0x2c/0x60
[ 490.478383] drm_fb_helper_hotplug_event.part.20+0xc0/0xd0
[ 490.483904] drm_fbdev_client_hotplug+0xc8/0x1d0
[ 490.488551] drm_client_dev_hotplug+0x78/0xc0
[ 490.492939] drm_kms_helper_hotplug_event+0x30/0x40
[ 490.497848] drm_helper_hpd_irq_event+0x12c/0x160
[ 490.502583] dw_hdmi_irq+0x118/0x1e0
[ 490.506185] irq_thread_fn+0x28/0x88
[ 490.509783] irq_thread+0x13c/0x1d8
[ 490.513298] kthread+0x150/0x158
[ 490.516549] ret_from_fork+0x10/0x18
[ 490.520147] irq event stamp: 12676
[ 490.523576] hardirqs last enabled at (12675): [<ffff800010a725cc>] _raw_spin_unlock_irqrestore+0x7c/0x90
[ 490.533206] hardirqs last disabled at (12676): [<ffff800010024918>] do_debug_exception+0x1a0/0x234
[ 490.542223] softirqs last enabled at (12634): [<ffff800010001598>] efi_header_end+0x598/0x5ac
[ 490.550892] softirqs last disabled at (12625): [<ffff80001007cf9c>] irq_exit+0x13c/0x148
[ 490.559032] ---[ end trace 5cdf3cb912c7ed2d ]---
[ 490.563942] vsp1 fea28000.vsp: vsp1_du_pipeline_setup_inputs: failed to setup BRU source
[ 490.572213] vsp1 fea28000.vsp: vsp1_du_pipeline_setup_inputs: failed to setup BRU source
[ 490.580410] ------------[ cut here ]------------
[ 490.585087] refcount_t: addition on 0; use-after-free.
[ 490.590316] WARNING: CPU: 0 PID: 123 at lib/refcount.c:25 refcount_warn_saturate+0x120/0x140
[ 490.598807] Modules linked in:
[ 490.601883] CPU: 0 PID: 123 Comm: irq/192-fead000 Tainted: G W 5.7.0-arm64-renesas-00012-gbc5411732961 #131
[ 490.612994] Hardware name: Renesas Salvator-X board based on r8a77951 (DT)
[ 490.619912] pstate: 40000005 (nZcv daif -PAN -UAO BTYPE=--)
[ 490.625521] pc : refcount_warn_saturate+0x120/0x140
[ 490.630430] lr : refcount_warn_saturate+0x120/0x140
[ 490.635337] sp : ffff80001258b960
[ 490.638671] x29: ffff80001258b960 x28: 0000000000000038
[ 490.644018] x27: ffff0006f676a800 x26: ffff8000111c3718
[ 490.649364] x25: ffff0006f228c200 x24: ffff0006f228c400
[ 490.654711] x23: 0000000000000038 x22: 0000000000000001
[ 490.660057] x21: ffff0006f3154000 x20: 0000000000000000
[ 490.665403] x19: ffff0006f228ec00 x18: ffffffffffffffff
[ 490.670748] x17: 0000000000000000 x16: 000000007a11fc18
[ 490.676095] x15: ffff8000111c09c8 x14: ffff80009258b677
[ 490.681441] x13: ffff80001258b685 x12: ffff8000111e2000
[ 490.686786] x11: 0000000005f5e0ff x10: 00000000000000b8
[ 490.692132] x9 : 0000000000000000 x8 : 0000000000000000
[ 490.697478] x7 : 0000000000000001 x6 : 0000000000000000
[ 490.702824] x5 : 0000000000000000 x4 : 0000000000000000
[ 490.708170] x3 : 0000000000000000 x2 : ffff0006fa12def8
[ 490.713516] x1 : f874420ef852bd00 x0 : 0000000000000000
[ 490.718862] Call trace:
[ 490.721325] refcount_warn_saturate+0x120/0x140
[ 490.725884] drm_atomic_helper_commit_hw_done+0x140/0x150
[ 490.731318] rcar_du_atomic_commit_tail+0xb4/0xd8
[ 490.736051] commit_tail+0x9c/0x160
[ 490.739561] drm_atomic_helper_commit+0x178/0x190
[ 490.744296] drm_atomic_commit+0x48/0x58
[ 490.748244] drm_client_modeset_commit_atomic+0x18c/0x280
[ 490.753678] drm_client_modeset_commit_locked+0x50/0x1e0
[ 490.759023] drm_client_modeset_commit+0x2c/0x50
[ 490.763671] drm_fb_helper_restore_fbdev_mode_unlocked+0x74/0xe8
[ 490.769717] drm_fb_helper_set_par+0x2c/0x60
[ 490.774014] drm_fb_helper_hotplug_event.part.20+0xc0/0xd0
[ 490.779535] drm_fbdev_client_hotplug+0xc8/0x1d0
[ 490.784182] drm_client_dev_hotplug+0x78/0xc0
[ 490.788567] drm_kms_helper_hotplug_event+0x30/0x40
[ 490.793476] drm_helper_hpd_irq_event+0x12c/0x160
[ 490.798210] dw_hdmi_irq+0x118/0x1e0
[ 490.801809] irq_thread_fn+0x28/0x88
[ 490.805408] irq_thread+0x13c/0x1d8
[ 490.808919] kthread+0x150/0x158
[ 490.812167] ret_from_fork+0x10/0x18
[ 490.815764] irq event stamp: 12796
[ 490.819189] hardirqs last enabled at (12795): [<ffff8000100eecf0>] console_unlock+0x418/0x638
[ 490.827855] hardirqs last disabled at (12796): [<ffff800010024918>] do_debug_exception+0x1a0/0x234
[ 490.836871] softirqs last enabled at (12792): [<ffff800010001598>] efi_header_end+0x598/0x5ac
[ 490.845538] softirqs last disabled at (12785): [<ffff80001007cf9c>] irq_exit+0x13c/0x148
[ 490.853678] ---[ end trace 5cdf3cb912c7ed2e ]---
[ 490.858414] ------------[ cut here ]------------
[ 490.863065] WARNING: CPU: 0 PID: 123 at drivers/gpu/drm/drm_atomic_helper.c:2312 drm_atomic_helper_commit_hw_done+0x130/0x150
[ 490.874438] Modules linked in:
[ 490.877513] CPU: 0 PID: 123 Comm: irq/192-fead000 Tainted: G W 5.7.0-arm64-renesas-00012-gbc5411732961 #131
[ 490.888624] Hardware name: Renesas Salvator-X board based on r8a77951 (DT)
[ 490.895542] pstate: 00000005 (nzcv daif -PAN -UAO BTYPE=--)
[ 490.901150] pc : drm_atomic_helper_commit_hw_done+0x130/0x150
[ 490.906932] lr : drm_atomic_helper_commit_hw_done+0x118/0x150
[ 490.912713] sp : ffff80001258b970
[ 490.916047] x29: ffff80001258b970 x28: 0000000000000038
[ 490.921393] x27: ffff0006f676a800 x26: ffff8000111c3718
[ 490.926739] x25: ffff0006f228dc00 x24: ffff0006f228f000
[ 490.932085] x23: 0000000000000038 x22: 0000000000000001
[ 490.937431] x21: ffff0006f3154000 x20: 0000000000000001
[ 490.942777] x19: ffff0006f228cc00 x18: ffffffffffffffff
[ 490.948122] x17: 0000000000000000 x16: 000000007a11fc18
[ 490.953468] x15: ffff8000111c09c8 x14: ffff80009258b677
[ 490.958814] x13: ffff80001258b685 x12: ffff8000111e2000
[ 490.964160] x11: 0000000005f5e0ff x10: 00000000000000b8
[ 490.969506] x9 : 0000000000000080 x8 : 0000000000000000
[ 490.974851] x7 : 0000000000000001 x6 : 0000000000000000
[ 490.980196] x5 : 0000000000000000 x4 : 0000000000006d40
[ 490.985542] x3 : 0000000000000000 x2 : 0000000000000002
[ 490.990887] x1 : 0000000000000001 x0 : ffff0006f5a76580
[ 490.996232] Call trace:
[ 490.998694] drm_atomic_helper_commit_hw_done+0x130/0x150
[ 491.004127] rcar_du_atomic_commit_tail+0xb4/0xd8
[ 491.008861] commit_tail+0x9c/0x160
[ 491.012371] drm_atomic_helper_commit+0x178/0x190
[ 491.017105] drm_atomic_commit+0x48/0x58
[ 491.021053] drm_client_modeset_commit_atomic+0x18c/0x280
[ 491.026486] drm_client_modeset_commit_locked+0x50/0x1e0
[ 491.031832] drm_client_modeset_commit+0x2c/0x50
[ 491.036480] drm_fb_helper_restore_fbdev_mode_unlocked+0x74/0xe8
[ 491.042524] drm_fb_helper_set_par+0x2c/0x60
[ 491.046822] drm_fb_helper_hotplug_event.part.20+0xc0/0xd0
[ 491.052343] drm_fbdev_client_hotplug+0xc8/0x1d0
[ 491.056989] drm_client_dev_hotplug+0x78/0xc0
[ 491.061374] drm_kms_helper_hotplug_event+0x30/0x40
[ 491.066283] drm_helper_hpd_irq_event+0x12c/0x160
[ 491.071017] dw_hdmi_irq+0x118/0x1e0
[ 491.074615] irq_thread_fn+0x28/0x88
[ 491.078214] irq_thread+0x13c/0x1d8
[ 491.081724] kthread+0x150/0x158
[ 491.084973] ret_from_fork+0x10/0x18
[ 491.088569] irq event stamp: 12824
[ 491.091996] hardirqs last enabled at (12823): [<ffff800010246bd0>] kfree+0x308/0x430
[ 491.099877] hardirqs last disabled at (12824): [<ffff800010024918>] do_debug_exception+0x1a0/0x234
[ 491.108892] softirqs last enabled at (12818): [<ffff800010001598>] efi_header_end+0x598/0x5ac
[ 491.117558] softirqs last disabled at (12799): [<ffff80001007cf9c>] irq_exit+0x13c/0x148
[ 491.125699] ---[ end trace 5cdf3cb912c7ed2f ]---
[ 491.130416] ------------[ cut here ]------------
[ 491.135067] WARNING: CPU: 0 PID: 123 at drivers/gpu/drm/drm_atomic_helper.c:2312 drm_atomic_helper_commit_hw_done+0x130/0x150
[ 491.146440] Modules linked in:
[ 491.149515] CPU: 0 PID: 123 Comm: irq/192-fead000 Tainted: G W 5.7.0-arm64-renesas-00012-gbc5411732961 #131
[ 491.160625] Hardware name: Renesas Salvator-X board based on r8a77951 (DT)
[ 491.167543] pstate: 00000005 (nzcv daif -PAN -UAO BTYPE=--)
[ 491.173150] pc : drm_atomic_helper_commit_hw_done+0x130/0x150
[ 491.178932] lr : drm_atomic_helper_commit_hw_done+0xc8/0x150
[ 491.184625] sp : ffff80001258b970
[ 491.187960] x29: ffff80001258b970 x28: 0000000000000038
[ 491.193306] x27: ffff0006f676a800 x26: ffff8000111c3718
[ 491.198651] x25: ffff0006f228d000 x24: ffff0006f228f600
[ 491.203998] x23: 0000000000000038 x22: 0000000000000001
[ 491.209343] x21: ffff0006f3154000 x20: 0000000000000003
[ 491.214689] x19: ffff0006f228fa00 x18: ffffffffffffffff
[ 491.220035] x17: 0000000000000000 x16: 000000007a11fc18
[ 491.225381] x15: ffff8000111c09c8 x14: ffff80009258b677
[ 491.230727] x13: ffff80001258b685 x12: ffff8000111e2000
[ 491.236073] x11: 0000000005f5e0ff x10: 00000000000000b8
[ 491.241418] x9 : 0000000000000080 x8 : 0000000000000000
[ 491.246764] x7 : 0000000000000001 x6 : 0000000000000000
[ 491.252109] x5 : 0000000000000001 x4 : 0000000000000000
[ 491.257455] x3 : 0000000000000000 x2 : 0000000000000002
[ 491.262801] x1 : 0000000000000001 x0 : ffff0006f5a76c80
[ 491.268146] Call trace:
[ 491.270607] drm_atomic_helper_commit_hw_done+0x130/0x150
[ 491.276040] rcar_du_atomic_commit_tail+0xb4/0xd8
[ 491.280774] commit_tail+0x9c/0x160
[ 491.284284] drm_atomic_helper_commit+0x178/0x190
[ 491.289018] drm_atomic_commit+0x48/0x58
[ 491.292966] drm_client_modeset_commit_atomic+0x18c/0x280
[ 491.298399] drm_client_modeset_commit_locked+0x50/0x1e0
[ 491.303745] drm_client_modeset_commit+0x2c/0x50
[ 491.308392] drm_fb_helper_restore_fbdev_mode_unlocked+0x74/0xe8
[ 491.314437] drm_fb_helper_set_par+0x2c/0x60
[ 491.318734] drm_fb_helper_hotplug_event.part.20+0xc0/0xd0
[ 491.324254] drm_fbdev_client_hotplug+0xc8/0x1d0
[ 491.328901] drm_client_dev_hotplug+0x78/0xc0
[ 491.333286] drm_kms_helper_hotplug_event+0x30/0x40
[ 491.338194] drm_helper_hpd_irq_event+0x12c/0x160
[ 491.342927] dw_hdmi_irq+0x118/0x1e0
[ 491.346526] irq_thread_fn+0x28/0x88
[ 491.350124] irq_thread+0x13c/0x1d8
[ 491.353635] kthread+0x150/0x158
[ 491.356884] ret_from_fork+0x10/0x18
[ 491.360480] irq event stamp: 12850
[ 491.363904] hardirqs last enabled at (12849): [<ffff800010a725cc>] _raw_spin_unlock_irqrestore+0x7c/0x90
[ 491.373532] hardirqs last disabled at (12850): [<ffff800010024918>] do_debug_exception+0x1a0/0x234
[ 491.382548] softirqs last enabled at (12842): [<ffff800010001598>] efi_header_end+0x598/0x5ac
[ 491.391213] softirqs last disabled at (12827): [<ffff80001007cf9c>] irq_exit+0x13c/0x148
[ 491.399354] ---[ end trace 5cdf3cb912c7ed30 ]---
[ 491.404400] sched: RT throttling activated
[ 501.470891] [drm:drm_atomic_helper_wait_for_flip_done] *ERROR* [CRTC:74:crtc-1] flip_done timed out
[ 511.710886] [drm:drm_atomic_helper_wait_for_flip_done] *ERROR* [CRTC:76:crtc-3] flip_done timed out
[ 511.720062] ------------[ cut here ]------------
[ 511.724740] refcount_t: underflow; use-after-free.
[ 511.729624] WARNING: CPU: 0 PID: 123 at lib/refcount.c:28 refcount_warn_saturate+0xcc/0x140
[ 511.738027] Modules linked in:
[ 511.741102] CPU: 0 PID: 123 Comm: irq/192-fead000 Tainted: G W 5.7.0-arm64-renesas-00012-gbc5411732961 #131
[ 511.752214] Hardware name: Renesas Salvator-X board based on r8a77951 (DT)
[ 511.759132] pstate: 40000005 (nZcv daif -PAN -UAO BTYPE=--)
[ 511.764740] pc : refcount_warn_saturate+0xcc/0x140
[ 511.769561] lr : refcount_warn_saturate+0xcc/0x140
[ 511.774381] sp : ffff80001258b9a0
[ 511.777715] x29: ffff80001258b9a0 x28: 0000000000000038
[ 511.783062] x27: ffff0006f676a800 x26: ffff8000111c3718
[ 511.788408] x25: ffff0006f5e574c0 x24: ffff0006f6728440
[ 511.793755] x23: 0000000000000038 x22: 0000000000000001
[ 511.799101] x21: 0000000000000000 x20: 0000000000000000
[ 511.804447] x19: ffff0006f228c200 x18: ffffffffffffffff
[ 511.809793] x17: 0000000000000000 x16: 000000007a11fc18
[ 511.815139] x15: ffff8000111c09c8 x14: ffff80009258b6b7
[ 511.820485] x13: ffff80001258b6c5 x12: ffff8000111e2000
[ 511.825830] x11: 0000000005f5e0ff x10: 00000000000000b8
[ 511.831176] x9 : 0000000000000000 x8 : 0000000000000000
[ 511.836522] x7 : 0000000000000001 x6 : 0000000000000000
[ 511.841867] x5 : 0000000000000000 x4 : 0000000000000000
[ 511.847212] x3 : 0000000000000000 x2 : ffff0006fa12def8
[ 511.852558] x1 : f874420ef852bd00 x0 : 0000000000000000
[ 511.857904] Call trace:
[ 511.860367] refcount_warn_saturate+0xcc/0x140
[ 511.864841] __drm_atomic_helper_crtc_destroy_state+0xdc/0x100
[ 511.870711] rcar_du_crtc_atomic_destroy_state+0x18/0x30
[ 511.876057] drm_atomic_state_default_clear+0x120/0x2f0
[ 511.881316] drm_atomic_state_clear+0x28/0x30
[ 511.885700] __drm_atomic_state_free+0x18/0x60
[ 511.890173] drm_client_modeset_commit_atomic+0x238/0x280
[ 511.895606] drm_client_modeset_commit_locked+0x50/0x1e0
[ 511.900952] drm_client_modeset_commit+0x2c/0x50
[ 511.905599] drm_fb_helper_restore_fbdev_mode_unlocked+0x74/0xe8
[ 511.911643] drm_fb_helper_set_par+0x2c/0x60
[ 511.915941] drm_fb_helper_hotplug_event.part.20+0xc0/0xd0
[ 511.921462] drm_fbdev_client_hotplug+0xc8/0x1d0
[ 511.926109] drm_client_dev_hotplug+0x78/0xc0
[ 511.930494] drm_kms_helper_hotplug_event+0x30/0x40
[ 511.935403] drm_helper_hpd_irq_event+0x12c/0x160
[ 511.940136] dw_hdmi_irq+0x118/0x1e0
[ 511.943735] irq_thread_fn+0x28/0x88
[ 511.947333] irq_thread+0x13c/0x1d8
[ 511.950845] kthread+0x150/0x158
[ 511.954094] ret_from_fork+0x10/0x18
[ 511.957690] irq event stamp: 13016
[ 511.961114] hardirqs last enabled at (13015): [<ffff8000100eecf0>] console_unlock+0x418/0x638
[ 511.969781] hardirqs last disabled at (13016): [<ffff800010024918>] do_debug_exception+0x1a0/0x234
[ 511.978797] softirqs last enabled at (13012): [<ffff800010001598>] efi_header_end+0x598/0x5ac
[ 511.987464] softirqs last disabled at (13005): [<ffff80001007cf9c>] irq_exit+0x13c/0x148
[ 511.995604] ---[ end trace 5cdf3cb912c7ed31 ]---
[ 512.000549] vsp1 fea28000.vsp: vsp1_du_pipeline_setup_inputs: failed to setup BRU source
[ 522.206891] [drm:drm_atomic_helper_wait_for_flip_done] *ERROR* [CRTC:74:crtc-1] flip_done timed out
[ 532.446880] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CRTC:74:crtc-1] flip_done timed out
[ 542.686878] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CONNECTOR:80:HDMI-A-1] flip_done timed out
[ 552.926877] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [PLANE:45:plane-5] flip_done timed out
[ 552.926932] vsp1 fea28000.vsp: vsp1_du_pipeline_setup_inputs: failed to setup BRU source
[ 563.166888] [drm:drm_atomic_helper_wait_for_flip_done] *ERROR* [CRTC:74:crtc-1] flip_done timed out
[ 563.234105] PM: resume of devices complete after 103756.305 msecs
[ 563.247877] PM: Finishing wakeup.

--
Best regards,
Eugeniu Rosca

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