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Hi people!
I'm using a lenovo Thinkpad X1 Gen 10 with archlinux installed.
I've been having critical problems for about a week each time my laptop wakes from suspend. The wifi device seems to be dead and unrecoverable(networkctl is stuck on "reconfiguring", restarting systemd-networkd hangs forever, `modprobe -r iwlwifi; modprobe iwlwifi` does nothing), with other symptoms such as unresponsive terminals, and finally trying to shutdown the system gets stuck at various points and never completes, requiring me to do a hard shutdown through the power button.
There is what seems like a critical error(NULL pointer dereference at address 0000000000000398) in the kernel logs, though it's unclear to me what's at cause(though I would guess the wlan device driver).
```
[100167.908615] BUG: kernel NULL pointer dereference, address: 0000000000000398
[100167.908617] #PF: supervisor write access in kernel mode
[100167.908619] #PF: error_code(0x0002) - not-present page
[100167.908620] PGD 0 P4D 0
[100167.908622] Oops: 0002 [#1] PREEMPT SMP NOPTI
[100167.908624] CPU: 0 PID: 78214 Comm: kworker/0:2 Tainted: G U 6.2.1-arch1-1 #1 826b345887e8fd845ab37a52cb3a6655383f6b60
[100167.908627] Hardware name: LENOVO 21CBCTO1WW/21CBCTO1WW, BIOS N3AET67W (1.32 ) 09/27/2022
[100167.908629] Workqueue: kacpi_notify acpi_os_execute_deferred
[100167.908681] RIP: 0010:queue_work_on+0x19/0x50
[100167.908707] Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 53 9c 58 0f 1f 40 00 48 89 c3 fa 0f 1f 44 00 00 <f0> 48 0f ba 2a 00 73 15 31 c9 80 e7 02 74 06 fb 0f 1f 44 00 00 89
[100167.908756] RSP: 0018:ffffb26549393e38 EFLAGS: 00010002
[100167.908757] RAX: 0000000000000202 RBX: 0000000000000202 RCX: 0000000000000000
[100167.908759] RDX: 0000000000000398 RSI: ffff8f8840051000 RDI: 0000000000000140
[100167.908781] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[100167.908782] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8f8b8f43c100
[100167.908782] R13: 0000000000000000 R14: ffff8f89e115af00 R15: ffff8f8909df17d8
[100167.908783] FS: 0000000000000000(0000) GS:ffff8f8b8f400000(0000) knlGS:0000000000000000
[100167.908806] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[100167.908807] CR2: 0000000000000398 CR3: 00000002d2810003 CR4: 0000000000f70ef0
[100167.908808] PKRU: 55555554
[100167.908809] Call Trace:
[100167.908810] <TASK>
[100167.908812] ucsi_acpi_notify+0xac/0xc0 [ucsi_acpi 5f6be84c63482e6c882ff877c18671e2c2674f06]
[100167.908817] acpi_ev_notify_dispatch+0x4b/0x63
[100167.908819] acpi_os_execute_deferred+0x17/0x30
[100167.908820] process_one_work+0x1c5/0x380
[100167.908822] worker_thread+0x51/0x390
[100167.908824] ? __pfx_worker_thread+0x10/0x10
[100167.908825] kthread+0xdb/0x110
[100167.908827] ? __pfx_kthread+0x10/0x10
[100167.908828] ret_from_fork+0x29/0x50
```
There also seems to be an OOM event(`OOM killer enabled; restarting tasks`).
When this started occurring I was using the latest kernel 6.2.1(package linux), since then I downgraded to 6.1.1(linux-lts) with no improvement. I might try to downgrade further.
Here's a gist with complete output of `dmesg` before shutting down after such an incident, as well as `lspci -k` output for hardware details.
https://gist.github.com/DrPyser/d7186cb … 521927936f
Thanks for any guidance on how to better investigate, or whether this is a known issue and a safe kernel version is known.
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Looks to be the same issue as in https://bbs.archlinux.org/viewtopic.php?id=283562
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