amdgpu crash in dp_set_panel_mode from perform_link_training_with_retries

[Jof Thibaut]

From time to time after waking up the screen on Ubuntu Budgie, the refresh rate goes from 120hz to 48hz followed by a flashing of the screen.

With dmesg this output appear:

[12947.570681] WARNING: CPU: 6 PID: 891 at drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link_dp.c:4282 dp_set_panel_mode+0xbb/0xd0 [amdgpu]
[12947.571031] Modules linked in: ses enclosure scsi_transport_sas uas usb_storage btrfs blake2b_generic xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c nls_iso8859_1 nvidia_uvm(POE) nvidia_drm(POE) nvidia_modeset(POE) intel_rapl_msr intel_rapl_common nvidia(POE) edac_mce_amd snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation soundwire_cadence snd_hda_codec snd_hda_core snd_hwdep soundwire_bus snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi kvm_amd amdgpu snd_seq snd_seq_device iommu_v2 gpu_sched snd_timer drm_ttm_helper ttm kvm snd drm_kms_helper crct10dif_pclmul ghash_clmulni_intel cec rc_core joydev asus_nb_wmi hid_multitouch efi_pstore i2c_algo_bit wmi_bmof aesni_intel fb_sys_fops crypto_simd syscopyarea cryptd sysfillrect glue_helper k10temp soundcore sysimgblt input_leds ccp rapl serio_raw asus_wireless
[12947.571130] mac_hid sch_fq_codel msr parport_pc ppdev lp drm parport ip_tables x_tables autofs4 hid_logitech_hidpp hid_logitech_dj usbhid hid_generic mfd_aaeon asus_wmi sparse_keymap crc32_pclmul nvme r8169 ahci i2c_hid xhci_pci xhci_pci_renesas nvme_core libahci i2c_piix4 realtek wmi video hid
[12947.571172] CPU: 6 PID: 891 Comm: Xorg Tainted: P OE 5.11.0-44-generic #48~20.04.2-Ubuntu
[12947.571178] Hardware name: ASUSTeK COMPUTER INC. TUF Gaming FX505DT_FX505DT/FX505DT, BIOS FX505DT.316 01/28/2021
[12947.571181] RIP: 0010:dp_set_panel_mode+0xbb/0xd0 [amdgpu]
[12947.571538] Code: fe b9 01 00 00 00 48 8d 55 e7 48 89 df 44 09 e0 be 0a 01 00 00 44 89 45 dc 88 45 e7 e8 8e b8 ff ff 44 8b 45 dc 83 f8 01 74 a1 <0f> 0b eb 9d e8 7c 99 3b d5 66 66 2e 0f 1f 84 00 00 00 00 00 90 0f
[12947.571543] RSP: 0018:ffffa3d881a17660 EFLAGS: 00010282
[12947.571548] RAX: 00000000ffffffff RBX: ffff9841d0ab9800 RCX: 000000000000010a
[12947.571551] RDX: ffff9841c3a0eba0 RSI: ffffffffc079367b RDI: 0000000000000100
[12947.571554] RBP: ffffa3d881a17688 R08: 0000000000000001 R09: 00000000fffffffb
[12947.571556] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
[12947.571559] R13: ffffa3d881a176e8 R14: 0000000000000001 R15: ffff9841d0ab9800
[12947.571562] FS: 00007f49db6fda40(0000) GS:ffff9844cf380000(0000) knlGS:0000000000000000
[12947.571572] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[12947.571575] CR2: 00007f6f24003f88 CR3: 000000010a030000 CR4: 00000000003506e0
[12947.571579] Call Trace:
[12947.571586] perform_link_training_with_retries+0xa7/0x140 [amdgpu]
[12947.571920] enable_link_dp+0xe2/0x230 [amdgpu]
[12947.572255] core_link_enable_stream+0x699/0x830 [amdgpu]
[12947.572588] dce110_apply_ctx_to_hw+0x5c1/0x600 [amdgpu]
[12947.572923] ? dcn10_verify_allow_pstate_change_high+0x22/0x350 [amdgpu]
[12947.573275] ? dcn10_wait_for_mpcc_disconnect+0x43/0x140 [amdgpu]
[12947.573626] dc_commit_state_no_check+0x28f/0xa00 [amdgpu]
[12947.573961] dc_commit_state+0x96/0xb0 [amdgpu]
[12947.574295] amdgpu_dm_atomic_commit_tail+0x56d/0x1510 [amdgpu]
[12947.574643] ? ktime_get_raw+0x34/0x90
[12947.574652] ? ttm_bo_mem_compat+0x28/0x60 [ttm]
[12947.574663] ? ttm_bo_validate+0x4c/0x160 [ttm]
[12947.574676] ? dm_plane_helper_prepare_fb+0x1b4/0x270 [amdgpu]
[12947.575021] ? _cond_resched+0x19/0x30
[12947.575029] ? wait_for_completion_timeout+0x3a/0x100
[12947.575033] ? _cond_resched+0x19/0x30
[12947.575039] commit_tail+0x99/0x130 [drm_kms_helper]
[12947.575068] drm_atomic_helper_commit+0x123/0x150 [drm_kms_helper]
[12947.575096] drm_atomic_commit+0x4a/0x50 [drm]
[12947.575149] drm_atomic_helper_set_config+0x7c/0xc0 [drm_kms_helper]
[12947.575177] drm_mode_setcrtc+0x20d/0x7e0 [drm]
[12947.575223] ? drm_mode_getcrtc+0x190/0x190 [drm]
[12947.575267] drm_ioctl_kernel+0xae/0xf0 [drm]
[12947.575308] drm_ioctl+0x257/0x410 [drm]
[12947.575349] ? drm_mode_getcrtc+0x190/0x190 [drm]
[12947.575395] amdgpu_drm_ioctl+0x4e/0x80 [amdgpu]
[12947.575665] __x64_sys_ioctl+0x91/0xc0
[12947.575675] do_syscall_64+0x38/0x90
[12947.575683] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[12947.575691] RIP: 0033:0x7f49dba5d50b
[12947.575696] Code: 0f 1e fa 48 8b 05 85 39 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 55 39 0d 00 f7 d8 64 89 01 48
[12947.575701] RSP: 002b:00007fffbb15c298 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[12947.575705] RAX: ffffffffffffffda RBX: 00007fffbb15c2d0 RCX: 00007f49dba5d50b
[12947.575708] RDX: 00007fffbb15c2d0 RSI: 00000000c06864a2 RDI: 000000000000000e
[12947.575710] RBP: 00000000c06864a2 R08: 0000000000000000 R09: 00005642faffaf80
[12947.575712] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[12947.575715] R13: 000000000000000e R14: 00005642f92c76e0 R15: 0000000000000000
[12947.575719] ---[ end trace de0be81b276e808a ]---

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.11.0-44.48~20.04.2-generic 5.11.22
Uname: Linux 5.11.0-44-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.capabilities.gpu0: Error: path was not a regular file.
.proc.driver.nvidia.capabilities.mig: Error: path was not a regular file.
.proc.driver.nvidia.gpus.0000.01.00.0: Error: path was not a regular file.
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.suspend: suspend hibernate resume
.proc.driver.nvidia.suspend_depth: default modeset uvm
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 495.46 Wed Oct 27 16:31:33 UTC 2021
 GCC version: gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
BootLog: Error: [Errno 13] Permission non accordée: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: Budgie:GNOME
Date: Wed Jan 5 21:26:45 2022
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus:
 nvidia, 495.46, 5.11.0-43-generic, x86_64: installed
 nvidia, 495.46, 5.11.0-44-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
 NVIDIA Corporation TU117M [GeForce GTX 1650 Mobile / Max-Q] [10de:1f91] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. TU117M [GeForce GTX 1650 Mobile / Max-Q] [1043:109f]
 Advanced Micro Devices, Inc. [AMD/ATI] Picasso [1002:15d8] (rev c2) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. Picasso [1043:18f1]
InstallationDate: Installed on 2022-01-04 (1 days ago)
InstallationMedia: Ubuntu-Budgie 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
Lsusb:
 Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 003 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver
 Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK COMPUTER INC. TUF Gaming FX505DT_FX505DT
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-44-generic root=UUID=24438010-da63-4033-9574-1003c41ebf21 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/28/2021
dmi.bios.release: 5.14
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: FX505DT.316
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: FX505DT
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.ec.firmware.release: 16.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrFX505DT.316:bd01/28/2021:br5.14:efr16.0:svnASUSTeKCOMPUTERINC.:pnTUFGamingFX505DT_FX505DT:pvr1.0:sku:rvnASUSTeKCOMPUTERINC.:rnFX505DT:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.family: TUF Gaming
dmi.product.name: TUF Gaming FX505DT_FX505DT
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.105-3~20.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.3-0ubuntu0.3~20.04.5
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Jof Thibaut (jt33)]

After updating the kernel to version 5.13.0-27, the problem no longer appears, thank you very much for the backport of this kernel .