Request for testing - firmware crash, wpa, locking

Hi,

(1) Colin has fixed the panic (after the firmware crash) so many people keep
seeing.  This may mean that you may now (contrary to before) try a
 	service netif restart wlan0
to recover from such a crash.  This changes is all the way to 13.2.
I am still very pre-occupied with real life but I am hoping that I can
get a possible fix tested and pushed during my Easter "holidays".


(2) Along with enweiwu and cy the "startup problem" showing as
"CTRL-EVENT-SCAN-FAILED" was debugged a bit more.  We've for now
backed out the rc startup script change and restored the old behaviour
of wpa_supplicant with additional logging.  This changes is currently in
main only but will be MFCed to stable/13 in the next week most likely.
If you etcupdate (mergemaster) and pull that change in I would kindly
ask you to turn on debugging for wpa_supplicant and check if you see
any log lines including "(changed)"  [beware most should be "(no
change)" along with IFF_UP in the line.  If so please contact me.
I still have a hypothesis that we may simply exploit a race in net80211
there which will need better fixing.


(3) if you are using iwlwifi (or rtw88) I just pushed some locking
changes into main.  I would appreciate if you could test and let me know
if there are any new regressions (they do not fix the firmware crash
from (1) yet!).

Lots of health,
/bz

-- 
Bjoern A. Zeeb                                                     r15:7