Re: Bug#1061449: linux-image-6.7-amd64: a boot message from amdgpu

[Salvatore Bonaccorso <carnil@debian.org>]

Hi

In Debian (https://bugs.debian.org/1061449) we got the following
quotred report:

On Wed, Jan 24, 2024 at 07:38:16PM +0100, Patrice Duroux wrote:
> Package: src:linux
> Version: 6.7.1-1~exp1
> Severity: normal
> 
> Dear Maintainer,
> 
> Giving a try to 6.7, here is a message extracted from dmesg:
> 
> [    4.177226] ------------[ cut here ]------------
> [    4.177227] WARNING: CPU: 6 PID: 248 at
> drivers/gpu/drm/amd/amdgpu/../display/dc/link/link_factory.c:387
> construct_phy+0xb26/0xd60 [amdgpu]
> [    4.177658] Modules linked in: amdgpu(+) i915(+) sd_mod drm_exec amdxcp
> gpu_sched drm_buddy nvme i2c_algo_bit drm_suballoc_helper drm_display_helper
> ahci nvme_core hid_generic crc32_pclmul libahci crc32c_intel t10_pi cec libata
> crc64_rocksoft_generic ghash_clmulni_intel rc_core drm_ttm_helper
> crc64_rocksoft sha512_ssse3 i2c_hid_acpi ttm rtsx_pci_sdmmc i2c_hid xhci_pci
> crc_t10dif sha512_generic mmc_core scsi_mod xhci_hcd drm_kms_helper video hid
> crct10dif_generic intel_lpss_pci crct10dif_pclmul i2c_i801 sha256_ssse3
> intel_lpss crc64 thunderbolt drm e1000e usbcore sha1_ssse3 rtsx_pci i2c_smbus
> scsi_common crct10dif_common idma64 usb_common battery wmi button aesni_intel
> crypto_simd cryptd
> [    4.177689] CPU: 6 PID: 248 Comm: (udev-worker) Not tainted 6.7-amd64 #1
> Debian 6.7.1-1~exp1
> [    4.177691] Hardware name: Dell Inc. Precision 7540/0T2FXT, BIOS 1.29.0
> 11/03/2023
> [    4.177692] RIP: 0010:construct_phy+0xb26/0xd60 [amdgpu]
> [    4.178050] Code: b9 01 00 00 00 83 fe 01 74 40 48 8b 82 f8 03 00 00 89 f2
> 48 c7 c6 00 35 a7 c1 48 8b 40 10 48 8b 00 48 8b 78 08 e8 ba b7 5b fb <0f> 0b 49
> 8b 87 d0 01 00 00 b9 0f 00 00 00 48 8b 80 e8 04 00 00 48
> [    4.178052] RSP: 0018:ffffaad300857408 EFLAGS: 00010246
> [    4.178053] RAX: 0000000000000000 RBX: ffff96df636a1700 RCX:
> c0000000ffffefff
> [    4.178054] RDX: 0000000000000000 RSI: 00000000ffffefff RDI:
> 0000000000000001
> [    4.178055] RBP: ffff96df4d379c00 R08: 0000000000000000 R09:
> ffffaad3008571d0
> [    4.178056] R10: 0000000000000003 R11: ffffffffbded2428 R12:
> ffffaad300857474
> [    4.178057] R13: ffffffffc1933140 R14: ffffaad3008577d0 R15:
> ffff96df43e82000
> [    4.178058] FS:  00007fcd5d9648c0(0000) GS:ffff96e2cc380000(0000)
> knlGS:0000000000000000
> [    4.178060] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [    4.178061] CR2: 00007fcd5d932a6d CR3: 0000000103e9a004 CR4:
> 00000000003706f0
> [    4.178062] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [    4.178063] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
> 0000000000000400
> [    4.178063] Call Trace:
> [    4.178066]  <TASK>
> [    4.178067]  ? construct_phy+0xb26/0xd60 [amdgpu]
> [    4.178422]  ? __warn+0x81/0x130
> [    4.178426]  ? construct_phy+0xb26/0xd60 [amdgpu]
> [    4.178784]  ? report_bug+0x171/0x1a0
> [    4.178787]  ? handle_bug+0x3c/0x80
> [    4.178789]  ? exc_invalid_op+0x17/0x70
> [    4.178790]  ? asm_exc_invalid_op+0x1a/0x20
> [    4.178793]  ? construct_phy+0xb26/0xd60 [amdgpu]
> [    4.179149]  ? construct_phy+0xb26/0xd60 [amdgpu]
> [    4.179507]  link_create+0x1b2/0x200 [amdgpu]
> [    4.179865]  create_links+0x135/0x420 [amdgpu]
> [    4.180196]  dc_create+0x321/0x640 [amdgpu]
> [    4.180529]  amdgpu_dm_init.isra.0+0x2a0/0x1ed0 [amdgpu]
> [    4.180881]  ? sysvec_apic_timer_interrupt+0xe/0x90
> [    4.180883]  ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
> [    4.180885]  ? delay_tsc+0x37/0xa0
> [    4.180889]  dm_hw_init+0x12/0x30 [amdgpu]
> [    4.181240]  amdgpu_device_init+0x1e42/0x24a0 [amdgpu]
> [    4.181517]  amdgpu_driver_load_kms+0x19/0x190 [amdgpu]
> [    4.181793]  amdgpu_pci_probe+0x165/0x4c0 [amdgpu]
> [    4.182067]  local_pci_probe+0x42/0xa0
> [    4.182070]  pci_device_probe+0xc7/0x240
> [    4.182072]  really_probe+0x19b/0x3e0
> [    4.182075]  ? __pfx___driver_attach+0x10/0x10
> [    4.182076]  __driver_probe_device+0x78/0x160
> [    4.182078]  driver_probe_device+0x1f/0x90
> [    4.182079]  __driver_attach+0xd2/0x1c0
> [    4.182081]  bus_for_each_dev+0x85/0xd0
> [    4.182083]  bus_add_driver+0x116/0x220
> [    4.182085]  driver_register+0x59/0x100
> [    4.182087]  ? __pfx_amdgpu_init+0x10/0x10 [amdgpu]
> [    4.182356]  do_one_initcall+0x58/0x320
> [    4.182359]  do_init_module+0x60/0x240
> [    4.182361]  init_module_from_file+0x89/0xe0
> [    4.182364]  idempotent_init_module+0x120/0x2b0
> [    4.182366]  __x64_sys_finit_module+0x5e/0xb0
> [    4.182367]  do_syscall_64+0x61/0x120
> [    4.182370]  ? do_syscall_64+0x70/0x120
> [    4.182372]  entry_SYSCALL_64_after_hwframe+0x6e/0x76
> [    4.182375] RIP: 0033:0x7fcd5e130f19
> [    4.182376] Code: 08 89 e8 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 90 48 89
> f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01
> f0 ff ff 73 01 c3 48 8b 0d cf 1e 0d 00 f7 d8 64 89 01 48
> [    4.182378] RSP: 002b:00007ffd314afa38 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000139
> [    4.182379] RAX: ffffffffffffffda RBX: 00005611ee7f84d0 RCX:
> 00007fcd5e130f19
> [    4.182380] RDX: 0000000000000000 RSI: 00007fcd5e2644f5 RDI:
> 0000000000000024
> [    4.182381] RBP: 0000000000000000 R08: 0000000000000040 R09:
> 00005611ee7d3140
> [    4.182382] R10: 0000000000000038 R11: 0000000000000246 R12:
> 00007fcd5e2644f5
> [    4.182383] R13: 0000000000020000 R14: 00005611ee7f0670 R15:
> 0000000000000000
> [    4.182385]  </TASK>
> [    4.182385] ---[ end trace 0000000000000000 ]---
> 
> 
> I do not know if this is something interesting and just a warning.
> Otherwise this amdgpu is a second device on my laptop system:
> 
> $ inxi -G
> Graphics:
>   Device-1: Intel CoffeeLake-H GT2 [UHD Graphics 630] driver: i915 v: kernel
>   Device-2: AMD Lexa XT [Radeon PRO WX 3200] driver: amdgpu v: kernel
>   Device-3: Sunplus Innovation Integrated_Webcam_HD driver: uvcvideo
>     type: USB
>   Display: wayland server: X.Org v: 23.2.4 with: Xwayland v: 23.2.4
>     compositor: gnome-shell v: 45.3 driver: X: loaded: amdgpu,modesetting
>     unloaded: fbdev,radeon,vesa dri: iris gpu: i915 resolution: 1920x1080~60Hz
>   API: EGL v: 1.5 drivers: iris,radeonsi,swrast
>     platforms: gbm,wayland,x11,surfaceless,device
>   API: OpenGL v: 4.6 vendor: intel mesa v: 23.3.3-3 renderer: Mesa Intel
>     UHD Graphics 630 (CFL GT2)
>   API: Vulkan v: 1.3.268 drivers: intel,radv,llvmpipe
>     surfaces: xcb,xlib,wayland

Analysis showed that this appears to be a regression from b17ef04bf3a4
("drm/amd/display: Pass pwrseq inst for backlight and ABM"). Does that
ring some bells?

See: https://bugs.debian.org/1061449#27

#regzbot introduced: b17ef04bf3a4
#regzbot link: https://bugs.debian.org/1061449
#regzbot title: Regression by b17ef04bf3a4 ("drm/amd/display: Pass pwrseq inst for backlight and ABM")

Regards,
Salvatore