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Date: Sat, 03 Jul 2010 12:50:04 -0700
From: Craig Whipp <crwhipp@gmail.com>
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Subject: Atheros AR9280 on 8.1-RC2 - unusable
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I recently upgraded a system of mine with an Atheros AR9280 to FreeBSD 
8.1-RC2.  Upon booting, the system log keeps getting appended with 
entries that state:

ath0:  bb hang detected (0x80)
and
ath0: ath_chan_set: unable to reset channel X (XXXX, flags 0x480), hal 
status 3
where X and XXXX cycle through the various channels and frequencies.

The associated wlan device is unable to associate with the wireless 
access point.

Let me know if there's any other information I can provide.  This card 
was experienced occaisional lockups in 8.0-RELEASE, and will only 
associate with the ath driver if the driver is compiled into the kernel 
- loading via a module would not work.

I'm posting this here because I saw Ken Smith's comment about recent 
AR9280 regression and fixes on this branch.

Thanks,

- Craig