On Oct 28, 2014, at 12:41, Sean Bruno <sbr...@ignoranthack.me> wrote:
> 
> It looks like recent HEAD seems to fail intermittently here on my home
> network.  It will recover, but urtwn(4) seems to lose an ack or
> something on txmit.  turning on debug, yields this message during the
> hang event.
> 
> hw.usb.urtwn.debug: 1
> 
> Oct 28 12:34:58 bruno kernel: _urtwn_getbuf: _urtwn_getbuf: out of xmit
> buffers
> Oct 28 12:34:58 bruno kernel: urtwn_getbuf: urtwn_getbuf: stop queue
> Oct 28 12:34:58 bruno kernel: _urtwn_getbuf: _urtwn_getbuf: out of xmit
> buffers
> Oct 28 12:34:58 bruno kernel: urtwn_getbuf: urtwn_getbuf: stop queue

That means the firmware is stuck and is holding transmit buffers, so we have no 
more in the unused list.

> Additionally, I get the following at module load time:
> 
> urtwn0: <vendor 0x0bda product 0x8176, class 0/0, rev 2.00/2.00, addr 1>
> on usbus0
> urtwn0: could not read efuse byte at address 0x10
> urtwn0: could not read efuse byte at address 0x18

I'm not sure what this is.

--
Rui Paulo



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