Re: Lenovo ThinkPad X1 Extreme (Intel AX210/AX211/AX411 160MHz) Wifi crash - 13.1-RELEASE 13.1-STABLE 14.0-CURRENT

On Mon, 19 Dec 2022, Adam Retter wrote:

> * On 14.0-CURRENT (20221209) after setting the regdomain and then the
> PSK, the installer exits to a black screen which describes a panic and
> it drops me into kbd. See the screenshot
> http://static.adamretter.org.uk/14.0-current-intel-wifi.jpg

The screenshot obviously doesn't give the full history but going by the
code path and the command it last executed ...

> I would be interested to know if this is the same issue described in -
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263613

... I assume it is the same issue with the up/down/up/.. cycle.

I can normally do it three times before it goes kaboom (and I have a
reproducer for it).

I have also tried to execute the bringup and teardown bits I easily can
in an endless loop which doesn't provoke the firmware to crash.  That
seems to indicate that we may need more state than I can (currently)
easily produce for the endless loop.

I keep poking at selective bits as a background task every other day
currently and I'll try to see what I can do over the holidays on this.


> Let me know if I can provide any further info that is not already
> captured in the hw-probe or the screenshots.

I cannot help much with the installer bits.   If you were to do this
with a non-crashing WiFi chip/driver would you ant any other changes
there?  If so you should probably raise that separately.


Lots of health,
Bjoern

-- 
Bjoern A. Zeeb                                                     r15:7