Arch Linux

FuzzySPb

Member

Registered: 2013-01-21

Posts: 46

[SOLVED] Acer Swift 3 - BUG: kernel NULL pointer dereference, address

Hi,
I'm not 100% sure what happned... I left my Acer Swift 3 for some time doing nothing. Then I came back - mouse coursor was moving but no any other reaction. I rebooted it - it worked for about an hour or two and then froze - again, mouse coursor was moving but nothing else.
So I rebooted it again and it froze just after I entered my password in GUI. So next time I booted, switched to the console and logged there. After login it worked for some seconds, then froze for some seconds and dumped a screed htat starts with

BUG: kernel NULL pointer dereference, address: 0000000000000080
# PF: supervisor read access in kernel mode...
# PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] PREEMTP SMP NOPTI
CPU: 2 PID: 263 Comm: kworker/2:11 Tainted: P        W    OE       6.2.11-arch1-1 #1 
Hardware name: Aser Swift SF314-58G/Strongbow_CM, BIOS V1.08  08/18/2020
Workqueue: events iwl_trans_pcie_removal_wk [iwlwifi]
RIP: 0010:pci_scan_chlid_bus_extend+0x16/0x290
....

(I just can't copy-paste it from text console and don't know exactly what to look for in this error message).
I just remember that las 1 or 2 days I noticed some strange behavior of internet connection - but I'm not sure was it a WiFi problem or my provider. Anyway it wasn't some big problem, rather I noticed that internet was absent for some short time and I reconnected my WiFi.
The crash happens after login and I have netctl-auto that connects my WiFi automatically - this is why I'm thinking that it might be related as I see iwlwifi in the log also...

May anyone help me to understand what to do with it?
(Meanwhile I'll try to boot into windows - I have a dual-boot - and check how wifi works there. Also I'll try to understand when I installed new packages related to wifi...)

Last edited by FuzzySPb (2023-04-16 18:38:13)

FuzzySPb

Member

Registered: 2013-01-21

Posts: 46

Re: [SOLVED] Acer Swift 3 - BUG: kernel NULL pointer dereference, address

I see that I upgraded to linux-6.2.9.arch1-1-x86_64 only yesterday - probably it is related...

Command

ip link

shows me that only lo interface is available. Command

iw dev

shows nothing. So it appears fault is related with wifi interface.

Last edited by FuzzySPb (2023-04-16 18:30:40)

FuzzySPb

Member

Registered: 2013-01-21

Posts: 46

Re: [SOLVED] Acer Swift 3 - BUG: kernel NULL pointer dereference, address

Ok, windows shows no wireless devices either so most probably my WiFi module is dead