Created attachment 2095102 [details]
The Output Of `sudo journalctl -k --no-hostname --boot=76f7df1e0b7a4a47998a5c51353e90e2 > dmesg.txt`

> Please describe the problem:

As https://discussion.fedoraproject.org/t/update-to-6-15-failed-due-to-kernel-null-pointer-dereference/156384 explains, 6.15.3-300.fc40.x86_64 kernel fails to boot with a null pointer dereference:

> ~~~CPP
> 23:55:34 systemd[1]: systemd-udevd.service: State 'stop-sigterm' timed out. Killing.
> 23:55:34 systemd[1]: systemd-udevd.service: Killing process 550 (systemd-udevd) with signal SIGKILL.
> 23:55:34 systemd[1]: systemd-udevd.service: Main process exited, code=killed, status=9/KILL
> 23:55:51 kernel: amdgpu 0000:59:00.0: [drm] Alt mode has timed out after 57004 ms
> 23:55:51 kernel: [drm:amdgpu_dm_init [amdgpu]] *ERROR* amdgpu: failed to initialize sw for display support.
> 23:55:51 kernel: [drm:amdgpu_device_ip_init [amdgpu]] *ERROR* hw_init of IP block <dm> failed -22
> 23:55:51 kernel: amdgpu 0000:59:00.0: amdgpu: amdgpu_device_ip_init failed
> 23:55:51 kernel: amdgpu 0000:59:00.0: amdgpu: Fatal error during GPU init
> 23:55:51 kernel: amdgpu 0000:59:00.0: amdgpu: amdgpu: finishing device.
> 23:55:51 kernel: BUG: kernel NULL pointer dereference, address: 00000000000005b0
> 23:55:51 kernel: #PF: supervisor read access in kernel mode
> 23:55:51 kernel: #PF: error_code(0x0000) - not-present page
> 23:55:51 kernel: PGD 0 P4D 0 
> 23:55:51 kernel: Oops: Oops: 0000 [#1] SMP NOPTI
> 23:55:51 kernel: CPU: 3 UID: 0 PID: 568 Comm: (udev-worker) Not tainted 6.15.3-200.fc42.x86_64 #1 PREEMPT(lazy) 
> 23:55:51 kernel: Hardware name: ASRock X670E Taichi/X670E Taichi, BIOS 3.08 09/19/2024
> 23:55:51 kernel: RIP: 0010:dc_resource_is_dsc_encoding_supported+0x9/0x30 [amdgpu]
> 23:55:51 kernel: Code: 8b 14 24 e9 69 fb ff ff e9 a7 d2 06 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 0f 1f 44 00 00 <48> 8b 87 b0 05 00 00 48 85 c0 74 14 48 8b 80 b8 04 00 00 8b 40 24
> 23:55:51 kernel: RSP: 0018:ffffc9cf80827648 EFLAGS: 00010246
> 23:55:51 kernel: RAX: 0000000000000000 RBX: ffff896529700010 RCX: 0000000000000000
> 23:55:51 kernel: RDX: ffff896529700010 RSI: ffff896504c2da00 RDI: 0000000000000000
> 23:55:51 kernel: RBP: ffff896515bfa900 R08: 0000000000000000 R09: 0000000000000000
> 23:55:51 kernel: R10: ffffc9cf808277b8 R11: 0000000000000000 R12: 0000000000000000
> 23:55:51 kernel: R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
> 23:55:51 kernel: FS:  00007f7465d78040(0000) GS:ffff896c739f1000(0000) knlGS:0000000000000000
> 23:55:51 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> 23:55:51 kernel: CR2: 00000000000005b0 CR3: 000000011309b000 CR4: 0000000000f50ef0
> 23:55:51 kernel: PKRU: 55555554
> 23:55:51 kernel: Call Trace:
> 23:55:51 kernel:  <TASK>
> 23:55:51 kernel:  amdgpu_dm_atomic_check+0xf5/0x1530 [amdgpu]
> 23:55:51 kernel:  drm_atomic_check_only+0x18d/0x3f0
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  drm_atomic_commit+0x71/0xe0
> 23:55:51 kernel:  ? __pfx___drm_printfn_info+0x10/0x10
> 23:55:51 kernel:  drm_atomic_helper_disable_all+0x187/0x1a0
> 23:55:51 kernel:  drm_atomic_helper_shutdown+0x8a/0x120
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  amdgpu_device_fini_hw+0xad/0x1a6 [amdgpu]
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  amdgpu_driver_load_kms.cold+0x19/0x2f [amdgpu]
> 23:55:51 kernel:  amdgpu_pci_probe+0x1df/0x540 [amdgpu]
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  local_pci_probe+0x3f/0x90
> 23:55:51 kernel:  pci_call_probe+0x5b/0x190
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  ? kernfs_create_link+0x61/0xb0
> 23:55:51 kernel:  pci_device_probe+0x95/0x140
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  really_probe+0xdb/0x340
> 23:55:51 kernel:  ? pm_runtime_barrier+0x55/0x90
> 23:55:51 kernel:  __driver_probe_device+0x78/0x140
> 23:55:51 kernel:  driver_probe_device+0x1f/0xa0
> 23:55:51 kernel:  ? __pfx___driver_attach+0x10/0x10
> 23:55:51 kernel:  __driver_attach+0xcb/0x1e0
> 23:55:51 kernel:  bus_for_each_dev+0x82/0xd0
> 23:55:51 kernel:  bus_add_driver+0x12f/0x210
> 23:55:51 kernel:  ? __pfx_amdgpu_init+0x10/0x10 [amdgpu]
> 23:55:51 kernel:  driver_register+0x75/0xe0
> 23:55:51 kernel:  ? amdgpu_init+0x42/0xff0 [amdgpu]
> 23:55:51 kernel:  do_one_initcall+0x58/0x300
> 23:55:51 kernel:  do_init_module+0x84/0x260
> 23:55:51 kernel:  init_module_from_file+0x8a/0xe0
> 23:55:51 kernel:  idempotent_init_module+0x114/0x310
> 23:55:51 kernel:  __x64_sys_finit_module+0x67/0xc0
> 23:55:51 kernel:  do_syscall_64+0x7b/0x160
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  ? ksys_read+0x73/0xe0
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  ? syscall_exit_to_user_mode+0x10/0x210
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  ? do_syscall_64+0x87/0x160
> 23:55:51 kernel:  ? __pfx_page_put_link+0x10/0x10
> 23:55:51 kernel:  ? alloc_fd+0xbd/0x110
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  ? do_sys_openat2+0xa2/0xe0
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  ? syscall_exit_to_user_mode+0x10/0x210
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  ? do_syscall_64+0x87/0x160
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  ? do_syscall_64+0x87/0x160
> 23:55:51 kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
> 23:55:51 kernel:  ? do_syscall_64+0x87/0x160
> 23:55:51 kernel:  ? exc_page_fault+0x7e/0x1a0
> 23:55:51 kernel:  entry_SYSCALL_64_after_hwframe+0x76/0x7e
> 23:55:51 kernel: RIP: 0033:0x7f7466637a8d
> 23:55:51 kernel: Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 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 4b 63 0f 00 f7 d8 64 89 01 48
> 23:55:51 kernel: RSP: 002b:00007fffe39c79f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
> 23:55:51 kernel: RAX: ffffffffffffffda RBX: 000055fa47842b70 RCX: 00007f7466637a8d
> 23:55:51 kernel: RDX: 0000000000000004 RSI: 00007f7465d6e965 RDI: 000000000000001d
> 23:55:51 kernel: RBP: 00007fffe39c7ab0 R08: 0000000000000000 R09: 00007fffe39c7a60
> 23:55:51 kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000020000
> 23:55:51 kernel: R13: 000055fa47808400 R14: 00007f7465d6e965 R15: 0000000000000000
> 23:55:51 kernel:  </TASK>
> 23:55:51 kernel: Modules linked in: amdgpu(+) amdxcp i2c_algo_bit drm_ttm_helper ttm drm_exec gpu_sched polyval_clmulni drm_suballoc_helper polyval_generic drm_panel_backlight_quirks drm_buddy ghash_clmulni_intel nvme uas sha512_ssse3 drm_display_helper usb_storage nvme_core sha256_ssse3 sha1_ssse3 sp5100_tco nvme_keyring cec nvme_auth video wmi fuse i2c_dev
> 23:55:51 kernel: CR2: 00000000000005b0
> 23:55:51 kernel: ---[ end trace 0000000000000000 ]---
> 23:55:51 kernel: RIP: 0010:dc_resource_is_dsc_encoding_supported+0x9/0x30 [amdgpu]
> 23:55:51 kernel: Code: 8b 14 24 e9 69 fb ff ff e9 a7 d2 06 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 0f 1f 44 00 00 <48> 8b 87 b0 05 00 00 48 85 c0 74 14 48 8b 80 b8 04 00 00 8b 40 24
> 23:55:51 kernel: RSP: 0018:ffffc9cf80827648 EFLAGS: 00010246
> 23:55:51 kernel: RAX: 0000000000000000 RBX: ffff896529700010 RCX: 0000000000000000
> 23:55:51 kernel: RDX: ffff896529700010 RSI: ffff896504c2da00 RDI: 0000000000000000
> 23:55:51 kernel: RBP: ffff896515bfa900 R08: 0000000000000000 R09: 0000000000000000
> 23:55:51 kernel: R10: ffffc9cf808277b8 R11: 0000000000000000 R12: 0000000000000000
> 23:55:51 kernel: R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
> 23:55:51 kernel: FS:  00007f7465d78040(0000) GS:ffff896c739f1000(0000) knlGS:0000000000000000
> 23:55:51 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> 23:55:51 kernel: CR2: 00000000000005b0 CR3: 000000011309b000 CR4: 0000000000f50ef0
> 23:55:51 kernel: PKRU: 55555554
> 23:55:51 kernel: note: (udev-worker)[568] exited with irqs disabled
> ~~~

The errors from https://gitlab.freedesktop.org/drm/amd/-/issues/3647 also appear beforehand, which I've never seen otherwise.

---

> What is the Version-Release number of the kernel:

`kernel-6.15.3-200.fc42.x86_64`

---

> Did it work previously in Fedora? If so, what kernel version did the issue *first* appear?

https://koji.fedoraproject.org/koji/rpminfo?rpmID=43118890, although, for me, it states:

> ~~~HTML
> <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
> <html><head>
> <title>403 Forbidden</title>
> </head><body>
> <h1>Forbidden</h1>
> <p>You don't have permission to access this resource.</p>
> <hr>
> <address>Apache Server at koji.fedoraproject.org Port 443</address>
> </body></html>
> ~~~

---

> Can you reproduce this issue?

5 of 5 attempts.

---

> If so, please provide the steps to reproduce the issue below:

Select 6.15.3 in the GRUB2 TUI.

---

> Does this problem occur with the latest Rawhide kernel? To install the Rawhide kernel, run `sudo dnf install fedora-repos-rawhide` followed by `sudo dnf update --enablerepo=rawhide kernel`:

IDK, because I'm wary to do so on my main machine. Can this be easily reverted? If so, I'll do so, if the instructions are provided.

---

> Are you running any modules that not shipped with directly Fedora's kernel?:

Not that I know of. I don't have VirtualBox installed.

---

> Please attach the kernel logs. You can get the complete kernel log for a boot with `journalctl --no-hostname -k > dmesg.txt`. If the issue occurred on a previous boot, use the journalctl `-b` flag.

Attached.