Comment 20 for bug 1991704

I am also encountering the same bug in 5.19.0-19, ThinkPad X1 Carbon Gen 9, with Intel Core i7-1165G7 CPU and TigerLake-LP GT2 [Iris Xe Graphics]

[ 3.739068] kernel: i915 0000:00:02.0: enabling device (0006 -> 0007)
[ 3.740132] kernel: i915 0000:00:02.0: [drm] VT-d active for gfx access
[ 3.740589] kernel: Console: switching to colour dummy device 80x25
[ 3.740623] kernel: intel_tcc_cooling: Programmable TCC Offset detected
[ 3.740633] kernel: i915 0000:00:02.0: vgaarb: deactivate vga console
[ 3.740682] kernel: i915 0000:00:02.0: [drm] Transparent Hugepage mode 'huge=within_size'
[ 3.741600] kernel: BUG: kernel NULL pointer dereference, address: 000000000000002e
[ 3.741605] kernel: #PF: supervisor write access in kernel mode
[ 3.741608] kernel: #PF: error_code(0x0002) - not-present page
[ 3.741610] kernel: PGD 0 P4D 0
[ 3.741614] kernel: Oops: 0002 [#1] PREEMPT SMP NOPTI
[ 3.741617] kernel: CPU: 4 PID: 378 Comm: systemd-udevd Not tainted 5.19.0-19-generic #19-Ubuntu
[ 3.741621] kernel: Hardware name: LENOVO 20XWCTO1WW/20XWCTO1WW, BIOS N32ET80W (1.56 ) 08/29/2022
[ 3.741624] kernel: RIP: 0010:tgl_get_bw_info.isra.0+0x473/0x6c0 [i915]
[ 3.741729] kernel: Code: fa 0b 0f 86 e7 00 00 00 41 39 c2 0f 8e 77 fc ff ff e9 3a 5c 0f 00 49 8d b5 e4 21 00 00 0f b7 85 30 ff ff ff 8b 8d 4c ff ff ff <c6> 46 2e 00 66 41 89 85 e0 21 00 00 85 c9 0f 85 f2 fd ff ff e9 08
[ 3.741732] kernel: RSP: 0018:ffffa7a380bcf840 EFLAGS: 00010202
[ 3.741735] kernel: RAX: 0000000000000004 RBX: ffffa7a380bcf8c6 RCX: 0000000000000004
[ 3.741738] kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
[ 3.741740] kernel: RBP: ffffa7a380bcf930 R08: 0000000000000000 R09: 0000000000000000
[ 3.741742] kernel: R10: 0000000000000008 R11: 0000000000000004 R12: 0000000000000080
[ 3.741744] kernel: R13: ffff9ad750b880f0 R14: 0000000000000005 R15: ffff9ad750b88000
[ 3.741746] kernel: FS: 00007f7729e268c0(0000) GS:ffff9ade7f700000(0000) knlGS:0000000000000000
[ 3.741748] kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3.741749] kernel: CR2: 000000000000002e CR3: 0000000107be6004 CR4: 0000000000770ee0
[ 3.741751] kernel: PKRU: 55555554
[ 3.741752] kernel: Call Trace:
[ 3.741754] kernel: <TASK>
[ 3.741756] kernel: ? __intel_wait_for_register_fw+0xf5/0x200 [i915]
[ 3.741815] kernel: intel_bw_init_hw+0x120/0x140 [i915]
[ 3.741881] kernel: i915_driver_hw_probe+0x2cc/0x370 [i915]
[ 3.741935] kernel: i915_driver_probe+0x19b/0x490 [i915]
[ 3.741984] kernel: ? drm_privacy_screen_get+0x16d/0x190 [drm]
[ 3.742011] kernel: ? acpi_dev_found+0x64/0x80
[ 3.742015] kernel: i915_pci_probe+0x56/0x150 [i915]
[ 3.742066] kernel: local_pci_probe+0x44/0x90
[ 3.742069] kernel: pci_call_probe+0x55/0x190
[ 3.742071] kernel: pci_device_probe+0x84/0x120
[ 3.742073] kernel: really_probe+0x1dc/0x3b0
[ 3.742076] kernel: __driver_probe_device+0x12c/0x1b0
[ 3.742078] kernel: driver_probe_device+0x24/0xd0
[ 3.742080] kernel: __driver_attach+0xe0/0x210
[ 3.742082] kernel: ? __device_attach_driver+0x130/0x130
[ 3.742084] kernel: bus_for_each_dev+0x8d/0xe0
[ 3.742086] kernel: driver_attach+0x1e/0x30
[ 3.742088] kernel: bus_add_driver+0x187/0x230
[ 3.742090] kernel: driver_register+0x8f/0x100
[ 3.742092] kernel: __pci_register_driver+0x62/0x70
[ 3.742094] kernel: i915_pci_register_driver+0x23/0x30 [i915]
[ 3.742141] kernel: i915_init+0x3b/0xf2 [i915]
[ 3.742197] kernel: ? 0xffffffffc14cd000
[ 3.742198] kernel: do_one_initcall+0x5b/0x240
[ 3.742202] kernel: do_init_module+0x50/0x210
[ 3.742205] kernel: load_module+0xb7d/0xcd0
[ 3.742208] kernel: __do_sys_finit_module+0xc4/0x140
[ 3.742210] kernel: ? __do_sys_finit_module+0xc4/0x140
[ 3.742212] kernel: __x64_sys_finit_module+0x18/0x30
[ 3.742214] kernel: do_syscall_64+0x58/0x90
[ 3.742217] kernel: ? irqentry_exit+0x43/0x50
[ 3.742219] kernel: ? sysvec_call_function+0x4b/0xd0
[ 3.742221] kernel: entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 3.742224] kernel: RIP: 0033:0x7f7729d16a1d
[ 3.742226] kernel: Code: 5d 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 b3 f3 0d 00 f7 d8 64 89 01 48
[ 3.742229] kernel: RSP: 002b:00007fff45e7e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 3.742231] kernel: RAX: ffffffffffffffda RBX: 000055b48daf5bc0 RCX: 00007f7729d16a1d
[ 3.742233] kernel: RDX: 0000000000000000 RSI: 00007f7729ebe458 RDI: 0000000000000018
[ 3.742234] kernel: RBP: 00007f7729ebe458 R08: 0000000000000000 R09: 00007fff45e7e290
[ 3.742236] kernel: R10: 0000000000000018 R11: 0000000000000246 R12: 0000000000020000
[ 3.742237] kernel: R13: 000055b48daf7330 R14: 0000000000000000 R15: 000055b48dc0c180
[ 3.742240] kernel: </TASK>