urtwn(4) Random freezes, urtwn_getbuf: out of xmit buffers

[Sean Bruno]

On Sat, 2014-11-01 at 13:24 -0700, Sean Bruno wrote:
> ooo lovely.  Able to get two different panics out of my laptop today.
> Both in urtwn(4). 
> 
> Is this a USB problem and not a driver failure?
> 
> https://people.freebsd.org/~sbruno/core.txt.1
> 
> https://people.freebsd.org/~sbruno/core.txt.0
> 
> sean
> 
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So, this appears to be a symptom of an overheating and failing adapter.

It suddenly died on me this weekend and changed usb devid and lost its
MAC address.

I bought 3 different units from Fry's this weekend and all three "just
work".  I appear to have 3 completely 100% working adapters.  I have
thrown the broke adapter away to never be seen again.

sean