[Bug 193512] ath0: bb hang detected (0x1), resetting for AR9287

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193512

--- Comment #7 from Robert Clausecker <fuz@fuz.su> ---
(In reply to Bjoern A. Zeeb from comment #6)

It happens to me on FreeBSD 13.0-RELEASE-p4.  The affected device is

ath0@pci0:3:0:0:        class=0x028000 rev=0x01 hdr=0x00 vendor=0x168c
device=0x002a subvendor=0x103c subdevice=0x3041
    vendor     = 'Qualcomm Atheros'
    device     = 'AR928X Wireless Network Adapter (PCI-Express)'
    class      = network

I some times get a lot of these:

ath0: bb hang detected (0x4), resetting
ath0: bb hang detected (0x4), resetting
ath0: bb hang detected (0x4), resetting

or stuff like this:

ath0: ath_rate_tx_complete: ts_rate=11 ts_finaltsi=0, final_rix=0
ath0: bad series0 hwrate 0xb, tries 1 ts_status 0x0
ath0: ath_rate_tx_complete: ts_rate=11 ts_finaltsi=0, final_rix=0
ath0: bad series0 hwrate 0xb, tries 1 ts_status 0x0
wlan0: link state changed to DOWN
wlan0: link state changed to UP
ath0: ath_rate_tx_complete: ts_rate=27 ts_finaltsi=0, final_rix=0
ath0: bad series0 hwrate 0x1b, tries 1 ts_status 0x0
ath0: ath_rate_tx_complete: ts_rate=27 ts_finaltsi=0, final_rix=0
ath0: bad series0 hwrate 0x1b, tries 1 ts_status 0x0

The connection usually comes back after a minute or so.

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