Re: wlan0 no longer functional after n249128-a0c64a443e4c -> n249146-cb5c07649aa0

On 2021 M09 5, Sun 15:52:50 EEST David Wolfskill wrote:
> Sorry I hadn't noticed this yesterday (so I could have repported it
> then), but after updating the "head" slice of my laptopp from:
> 
> FreeBSD g1-51.catwhisker.org 14.0-CURRENT FreeBSD 14.0-CURRENT #340
> main-n249128-a0c64a443e4c: Fri Sep  3 04:06:12 PDT 2021    
> root@g1-55.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY 
> amd64 1400032 1400032
> 
> to:
> 
> FreeBSD g1-51.catwhisker.org 14.0-CURRENT FreeBSD 14.0-CURRENT #341
> main-n249146-cb5c07649aa0: Sat Sep  4 04:28:27 PDT 2021    
> root@g1-51.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY 
> amd64 1400032 1400032
> 
> I find that while the em0 NIC still works, wlan0 (iwn(4) HW) does not:
> the WLAN LED doesn't light up.

 I am also experiencing issues with wlan after my current update to 
1f7a6325fe1b. I have checked ath(4) , run(4), rtwn(4) and all of them 
demonstrating the same behavior  - wlan can not associate.
You can mitigate it by using security/wpa_supplicant from ports as replacement 
of wpa_supplicant in base.

.....
> 
> I note that exactly the same hardware works OK in stable/12 and stable/13.
> 
> Peace,
> david