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Tasklist

FS#77795 - system freeze on wifi scanning (AR9462)

Attached to Project: Arch Linux
Opened by Primalmotion (primalmotion) - Thursday, 09 March 2023, 18:39 GMT
Last edited by Toolybird (Toolybird) - Thursday, 13 April 2023, 22:11 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To No-one
Architecture x86_64
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:

System freezes when running `iwd station wlan0 scan`. This is 100% reproducible.

The computer just freezes, the fans start spinning, and a force reboot is mandatory.
There is nothing relevant in journalctl.

Additional info:

- I have a Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01) (ath9k diver)
- This bug does not happen in Linux <= 6.1.12, but in >= 6.2

Steps to reproduce:

- iwctl station wlan0 scan
This task depends upon

Closed by  Toolybird (Toolybird)
Thursday, 13 April 2023, 22:11 GMT
Reason for closing:  Upstream
Additional comments about closing:  In the linked bugzilla, a patch has been proposed. Hopefully fixed by upstream in a future update.
Comment by Toolybird (Toolybird) - Thursday, 09 March 2023, 19:52 GMT
> bug does not happen in Linux <= 6.1.12, but in >= 6.2

Therefore it appears to be a kernel regression. General advice here [1]. I tried searching on lore.kernel.org but couldn't spot anything obvious. You might have to report it upstream. Please let us know what you find out.

[1] https://wiki.archlinux.org/title/Kernel#Debugging_regressions
Comment by Primalmotion (primalmotion) - Monday, 13 March 2023, 17:10 GMT
Opened an issue here https://bugzilla.kernel.org/show_bug.cgi?id=217183
Comment by loqs (loqs) - Monday, 13 March 2023, 19:43 GMT
@primalmotion do you need any help with the bisection upstream has requested?
Comment by Primalmotion (primalmotion) - Monday, 13 March 2023, 20:00 GMT
it's not really as much help that I need but time :) I'll try to do it this week

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