Atheros Looping: ath0: hardware error; resetting

Nate Nielsen nielsen-list at memberwebs.com
Wed Dec 21 22:53:30 PST 2005


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Sam Leffler wrote:
> Seems to work fine here with CURRENT; I just typed the exact commands
> from above.  "hardware errors" are typically dma errors.  If you're
> operating in adhoc mode the h/w is periodically sending beacons and if
> that tx descriptor gets setup wrong it can cause a dma error.  Marking
> the interface down will shutdown all dma so if you're seeing these
> repeat try doing that.  Perhaps there is a race in changing state but I
> just did a tight loop where I switched media and saw nothing bad happen.

Very strange. I've also seen it switching channels. Maybe it is bad
hardware. These radios are now deployed. I'll test again with the next
batch.

> I can try 6.0 later.  FWIW 5213 is kinda nebulous; the only true info
> are the mac+phy revs from dmesg|grep ath.

ath0: mac 5.9 phy 4.3 radio 3.6

Cheers,
Nate
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