[Bug 277868] iwlwifi: Frequent disconnects from network, needs ifconfig scan or netif restart

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277868

Bjoern A. Zeeb <bz@FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bz@FreeBSD.org
             Status|New                         |Open
             Blocks|                            |273620

--- Comment #5 from Bjoern A. Zeeb <bz@FreeBSD.org> ---
(In reply to Cheng Cui from comment #4)

The "WRT: Invalid buffer destination" are because for (unknown) reasons the
firmware disabled various debug buffers.
We've had this while discussing the HT fw assertions in February.

It's so much in the log because he issues a service netif restart and the VAP
(wlan interface) gets destroyed and re-created.



Eirik, it's really hard to debug it like this.  Not sure if we tried in the
past or with someone else given this is a Ubiquity again?

If ifconfig wlan0 scan as su does not help (wpa_cli scan), it would be
interesting to know if ifconfig wlan0 down && sleep 1 && ifconfig wlan0 up
helps (instead of serivce restart).

it would be helpful if could add at least one -d to the wpa_supplicant flags in
rc.conf to get a bit more logging.

Of course it would be interesting to see if the AP has logs of these events
too.  can you ssh into the AP and check?


Referenced Bugs:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273620
[Bug 273620] iwlwifi meta-bug
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