https://bugzilla.kernel.org/show_bug.cgi?id=204181 doesnotcompete@xxxxxxxxx changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |doesnotcompete@xxxxxxxxx --- Comment #69 from doesnotcompete@xxxxxxxxx --- Hello, I'm encountering a similar regression on the 6.1.1 kernel (not present in this form on 6.0.12, although the system occasionally freezes as well). When connecting a Thinkpad USB-C Dock with two monitors to my Ryzen 3500U Thinkpad, the system freezes with a null-pointer dereference in amdgpu. Kernel: Linux version 6.1.1-arch1-1 (linux@archlinux) (gcc (GCC) 12.2.0, GNU ld (GNU Binutils) 2.39.0) #1 SMP PREEMPT_DYNAMIC Wed, 21 Dec 2022 22:27:55 +0000 Graphics controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso/Raven 2 [Radeon Vega Series / Radeon Vega Mobile Series] (rev d2) Output from journalctl: Dec 23 09:42:29 kevin-t495 kernel: usb 2-1.3.3: New USB device found, idVendor=17ef, idProduct=a395, bcdDevice=60.70 Dec 23 09:42:29 kevin-t495 kernel: usb 2-1.3.3: New USB device strings: Mfr=10, Product=11, SerialNumber=0 Dec 23 09:42:29 kevin-t495 kernel: usb 2-1.3.3: Product: USB2.0 Hub Dec 23 09:42:29 kevin-t495 kernel: usb 2-1.3.3: Manufacturer: Lenovo Dec 23 09:42:29 kevin-t495 kernel: [drm] Downstream port present 1, type 2 Dec 23 09:42:29 kevin-t495 kernel: BUG: kernel NULL pointer dereference, address: 0000000000000008 Dec 23 09:42:29 kevin-t495 kernel: #PF: supervisor read access in kernel mode Dec 23 09:42:29 kevin-t495 kernel: #PF: error_code(0x0000) - not-present page Dec 23 09:42:29 kevin-t495 kernel: PGD 0 P4D 0 Dec 23 09:42:29 kevin-t495 kernel: Oops: 0000 [#1] PREEMPT SMP NOPTI Dec 23 09:42:29 kevin-t495 kernel: CPU: 4 PID: 998 Comm: sway Not tainted 6.1.1-arch1-1 #1 9bd09188b430be630e611f984454e4f3c489be77 Dec 23 09:42:29 kevin-t495 kernel: Hardware name: LENOVO 20NKS01Y00/20NKS01Y00, BIOS R12ET61W(1.31 ) 07/28/2022 Dec 23 09:42:29 kevin-t495 kernel: RIP: 0010:drm_dp_atomic_find_time_slots+0x61/0x2a0 [drm_display_helper] Dec 23 09:42:29 kevin-t495 kernel: Code: 00 00 00 48 8b 85 60 05 00 00 48 63 80 88 00 00 00 3b 43 28 0f 8d ce 01 00 00 48 8b 53 30 48 8d 04 80 48 8d 04 c2 48 8b 40 18 <48> 8b 40 08 4d 8d 65 38 8b 88 90 00 00 00 b8 01 00 00 00 d3 e0 41 Dec 23 09:42:29 kevin-t495 kernel: RSP: 0018:ffffa526c0eef780 EFLAGS: 00010293 Dec 23 09:42:29 kevin-t495 kernel: RAX: 0000000000000000 RBX: ffff9555ef407200 RCX: 0000000000000214 Dec 23 09:42:29 kevin-t495 kernel: RDX: ffff9555c4124800 RSI: ffff9555429ba540 RDI: ffff9555ef407200 Dec 23 09:42:29 kevin-t495 kernel: RBP: ffff9555cfc76000 R08: 0000000000000001 R09: ffff9555c4242050 Dec 23 09:42:29 kevin-t495 kernel: R10: ffffa526c0eef8a0 R11: 000000004cb505a0 R12: 026d60dce16e8423 Dec 23 09:42:29 kevin-t495 kernel: R13: ffff95554cb505a0 R14: ffff9555429ba540 R15: 0000000000000214 Dec 23 09:42:29 kevin-t495 kernel: FS: 00007fb56378b980(0000) GS:ffff9557f0b00000(0000) knlGS:0000000000000000 Dec 23 09:42:29 kevin-t495 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Dec 23 09:42:29 kevin-t495 kernel: CR2: 0000000000000008 CR3: 000000010ae2a000 CR4: 00000000003506e0 Dec 23 09:42:29 kevin-t495 kernel: Call Trace: Dec 23 09:42:29 kevin-t495 kernel: <TASK> Dec 23 09:42:29 kevin-t495 kernel: compute_mst_dsc_configs_for_link+0x31d/0x9d0 [amdgpu 895e2b3772442c7d04dbf61a65c8a3690bb074b6] Dec 23 09:42:29 kevin-t495 kernel: ? cm_helper_translate_curve_to_degamma_hw_format+0x5f0/0x5f0 [amdgpu 895e2b3772442c7d04dbf61a65c8a3690bb074b6] Dec 23 09:42:29 kevin-t495 kernel: ? fill_plane_buffer_attributes+0x355/0x530 [amdgpu 895e2b3772442c7d04dbf61a65c8a3690bb074b6] Dec 23 09:42:29 kevin-t495 kernel: compute_mst_dsc_configs_for_state+0x1e1/0x250 [amdgpu 895e2b3772442c7d04dbf61a65c8a3690bb074b6] Dec 23 09:42:29 kevin-t495 kernel: amdgpu_dm_atomic_check+0xf81/0x1230 [amdgpu 895e2b3772442c7d04dbf61a65c8a3690bb074b6] Dec 23 09:42:29 kevin-t495 kernel: drm_atomic_check_only+0x537/0xba0 Dec 23 09:42:29 kevin-t495 kernel: drm_mode_atomic_ioctl+0x750/0xbb0 Dec 23 09:42:29 kevin-t495 kernel: ? drm_property_add_enum+0x180/0x180 Dec 23 09:42:29 kevin-t495 kernel: ? idr_alloc+0x3a/0x70 Dec 23 09:42:29 kevin-t495 kernel: ? drm_atomic_set_property+0xbc0/0xbc0 Dec 23 09:42:29 kevin-t495 kernel: drm_ioctl_kernel+0xcd/0x170 Dec 23 09:42:29 kevin-t495 kernel: drm_ioctl+0x1eb/0x450 Dec 23 09:42:29 kevin-t495 kernel: ? drm_atomic_set_property+0xbc0/0xbc0 Dec 23 09:42:29 kevin-t495 kernel: amdgpu_drm_ioctl+0x4e/0x90 [amdgpu 895e2b3772442c7d04dbf61a65c8a3690bb074b6] Dec 23 09:42:29 kevin-t495 kernel: __x64_sys_ioctl+0x94/0xd0 Dec 23 09:42:29 kevin-t495 kernel: do_syscall_64+0x5f/0x90 Dec 23 09:42:29 kevin-t495 kernel: ? syscall_exit_to_user_mode+0x1b/0x40 Dec 23 09:42:29 kevin-t495 kernel: ? do_syscall_64+0x6b/0x90 Dec 23 09:42:29 kevin-t495 kernel: ? do_syscall_64+0x6b/0x90 Dec 23 09:42:29 kevin-t495 kernel: ? syscall_exit_to_user_mode+0x1b/0x40 Dec 23 09:42:29 kevin-t495 kernel: ? do_syscall_64+0x6b/0x90 Dec 23 09:42:29 kevin-t495 kernel: ? do_syscall_64+0x6b/0x90 Dec 23 09:42:29 kevin-t495 kernel: entry_SYSCALL_64_after_hwframe+0x63/0xcd Dec 23 09:42:29 kevin-t495 kernel: RIP: 0033:0x7fb5645dec0f Dec 23 09:42:29 kevin-t495 kernel: Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 18 48 8b 44 24 18 64 48 2b 04 25 28 00 00 Dec 23 09:42:29 kevin-t495 kernel: RSP: 002b:00007ffd3850b740 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Dec 23 09:42:29 kevin-t495 kernel: RAX: ffffffffffffffda RBX: 000055c223c95960 RCX: 00007fb5645dec0f Dec 23 09:42:29 kevin-t495 kernel: RDX: 00007ffd3850b7e0 RSI: 00000000c03864bc RDI: 000000000000000d Dec 23 09:42:29 kevin-t495 kernel: RBP: 00007ffd3850b7e0 R08: 0000000000000003 R09: 0000000000000003 Dec 23 09:42:29 kevin-t495 kernel: R10: 000055c222b65010 R11: 0000000000000246 R12: 00000000c03864bc Dec 23 09:42:29 kevin-t495 kernel: R13: 000000000000000d R14: 000055c223c6cba0 R15: 000055c223bfcab0 Dec 23 09:42:29 kevin-t495 kernel: </TASK> Dec 23 09:42:29 kevin-t495 kernel: Modules linked in: cdc_ether usbnet r8152 mii rfcomm snd_seq_dummy snd_hrtimer snd_seq snd_seq_device nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast ccm cmac algif_hash algif_skcipher af_alg nft_fib_inet nft_> Dec 23 09:42:29 kevin-t495 kernel: snd_pci_acp6x iwlwifi snd_pci_acp5x snd_hda_core rapl snd_rn_pci_acp3x vfat think_lmi realtek ecdh_generic snd_hwdep fat snd_acp_config ucsi_acpi typec_ucsi pcspkr mdio_devres psmouse snd_soc_acpi firmware_attributes_c> Dec 23 09:42:29 kevin-t495 kernel: CR2: 0000000000000008 Dec 23 09:42:29 kevin-t495 kernel: ---[ end trace 0000000000000000 ]--- Dec 23 09:42:29 kevin-t495 kernel: RIP: 0010:drm_dp_atomic_find_time_slots+0x61/0x2a0 [drm_display_helper] Dec 23 09:42:29 kevin-t495 kernel: Code: 00 00 00 48 8b 85 60 05 00 00 48 63 80 88 00 00 00 3b 43 28 0f 8d ce 01 00 00 48 8b 53 30 48 8d 04 80 48 8d 04 c2 48 8b 40 18 <48> 8b 40 08 4d 8d 65 38 8b 88 90 00 00 00 b8 01 00 00 00 d3 e0 41 Dec 23 09:42:29 kevin-t495 kernel: RSP: 0018:ffffa526c0eef780 EFLAGS: 00010293 Dec 23 09:42:29 kevin-t495 kernel: RAX: 0000000000000000 RBX: ffff9555ef407200 RCX: 0000000000000214 Dec 23 09:42:29 kevin-t495 kernel: RDX: ffff9555c4124800 RSI: ffff9555429ba540 RDI: ffff9555ef407200 Dec 23 09:42:29 kevin-t495 kernel: RBP: ffff9555cfc76000 R08: 0000000000000001 R09: ffff9555c4242050 Dec 23 09:42:29 kevin-t495 kernel: R10: ffffa526c0eef8a0 R11: 000000004cb505a0 R12: 026d60dce16e8423 Dec 23 09:42:29 kevin-t495 kernel: R13: ffff95554cb505a0 R14: ffff9555429ba540 R15: 0000000000000214 Dec 23 09:42:29 kevin-t495 kernel: FS: 00007fb56378b980(0000) GS:ffff9557f0b00000(0000) knlGS:0000000000000000 Dec 23 09:42:29 kevin-t495 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Dec 23 09:42:29 kevin-t495 kernel: CR2: 0000000000000008 CR3: 000000010ae2a000 CR4: 00000000003506e0 -- You may reply to this email to add a comment. 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