Debugging Stalls with ath(4)

Adrian Chadd adrian at freebsd.org
Sat Jan 12 00:00:44 UTC 2013


.. ok, so reading about this a bit more.

Going in and out of power save state could be it. Having it wait for a
second is possible when you're in power save, because it's quite
possible that the device is _in_ power save state for that long.

Enable power state debugging in net80211 and see what's happening.
You'll see it come in and out of power save, as well as it queuing up
frames (and if the node power save queue overflows.)

It'll also log whether it receives ps-poll frames (which I know
handling of is broken in various ways in -HEAD and will be for a few
more weeks) or whether it's just coming in and out of power save
frames.

Thanks,


Adrian


More information about the freebsd-wireless mailing list