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#1 2022-08-25 10:15:40

skreett
Member
Registered: 2022-02-21
Posts: 6

[SOLVED] [Wireless] failed to validate module [wl] BTF: -22

Hi all,

I have a Macbook Air mid 2013 with an Arch installed. I've had wifi working with the broadcom-wl-dkms drivers since February of this year. I was trying to install plymouth today and was able to get that working, but now my wifi has stopped working. I uninstalled plymouth and undid any changes I made and my wifi is still not working.

Here is the output to my dmesg command checking the wl module:

 sudo dmesg | grep wl
[   42.847171] wl: module license 'MIXED/Proprietary' taints kernel.
[   43.061047] failed to validate module [wl] BTF: -22
[  348.257237] failed to validate module [wl] BTF: -22 

And here is the network card I have:

 03:00.0 "Network controller" "Broadcom Inc. and subsidiaries" "BCM4360 802.11ac Wireless Network Adapter" -r03 -p00 "Apple Inc." "Device 0117" 

I have tried to reinstall the broadcom-wl-dkms package to no avail.

Please let me know how I can fix this, thanks!

Last edited by skreett (2022-08-25 18:51:04)

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#2 2022-08-25 10:21:58

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 21,422

Re: [SOLVED] [Wireless] failed to validate module [wl] BTF: -22

Update your system again there was a bug in pahole leading to an issue with all DKMS builds, that lead to pahole getting force downgraded,make sure you get pahole 1:1.23-1 thenn install the broadcom-wl-dkms package again/rebuild the modules with

sudo dkms autoinstall

Last edited by V1del (2022-08-25 10:22:53)

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#3 2022-08-25 18:10:37

skreett
Member
Registered: 2022-02-21
Posts: 6

Re: [SOLVED] [Wireless] failed to validate module [wl] BTF: -22

Thank you! I had to manually downgrade to pahole 1.23-1 but doing that and then reinstalling the broadcom-wl-dkms package and restarting my system fixed the issue. Any idea how long I will have to keep it downgraded?

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#4 2022-08-25 23:17:00

Scimmia
Fellow
Registered: 2012-09-01
Posts: 11,463

Re: [SOLVED] [Wireless] failed to validate module [wl] BTF: -22

It's already been downgraded with an epoch in the repos, there's no need to manually downgrade or hold anything. Just update the sysetm.

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#5 2022-08-25 23:23:25

skreett
Member
Registered: 2022-02-21
Posts: 6

Re: [SOLVED] [Wireless] failed to validate module [wl] BTF: -22

Hmmm I was having an issue earlier when I updated the system that it kept trying to upgrade to the newer version which is why I downgraded. I have checked again and you are correct. I have removed it from my ignored packages now. I'll have to investigate if the mirror I am using is slow to sync. Thanks for the update!

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