Lots of "ath0: bad series0 hwrate 0x1b" in 8.0-BETA2

Hi,

After 7.2-RLEASE -> 8.0-BETA2 update my notebook wireless works
without problems but there are lots of annoying "ath0: bad series0
hwrate 0x1b"-like messages on console now.

====================================================
pciconf:

ath0_at_pci0:1:0:0:        class=0x020000 card=0x3065168c chip=0x001c168c
rev=0x01 hdr=0x00
   vendor     = 'Atheros Communications Inc.'
   device     =
'HDAUDIOFUNC_01&VEN_1095&DEV_1392&SUBSYS_10280242&REV_1000
(USBVID_147E&PID_20165&B71A446&0&1)'
   class      = network
   subclass   = ethernet

====================================================
sysctls:

hw.ath.bstuck: 4
hw.ath.txbuf: 200
hw.ath.rxbuf: 40
hw.ath.resetcal: 1200
hw.ath.shortcal: 100
hw.ath.longcal: 30
hw.ath.hal.swba_backoff: 0
hw.ath.hal.sw_brt: 10
hw.ath.hal.dma_brt: 2
dev.ath.0.%desc: Atheros 5424/2424
dev.ath.0.%driver: ath
dev.ath.0.%location: slot=0 function=0
dev.ath.0.%pnpinfo: vendor=0x168c device=0x001c subvendor=0x168c
subdevice=0x3065 class=0x020000
dev.ath.0.%parent: pci1
dev.ath.0.smoothing_rate: 95
dev.ath.0.sample_rate: 10
dev.ath.0.sample_stats: 0
dev.ath.0.countrycode: 0
dev.ath.0.regdomain: 96
dev.ath.0.slottime: 9
dev.ath.0.acktimeout: 48
dev.ath.0.ctstimeout: 48
dev.ath.0.softled: 0
dev.ath.0.ledpin: 0
dev.ath.0.ledon: 0
dev.ath.0.ledidle: 2700
dev.ath.0.txantenna: 0
dev.ath.0.rxantenna: 1
dev.ath.0.diversity: 1
dev.ath.0.txintrperiod: 5
dev.ath.0.diag: 0
dev.ath.0.tpscale: 0
dev.ath.0.tpc: 0
dev.ath.0.tpack: 63
dev.ath.0.tpcts: 63
dev.ath.0.rfsilent: 1
dev.ath.0.rfkill: 1
dev.ath.0.intmit: 1
dev.ath.0.monpass: 24

====================================================
dmesg:

ath0: <Atheros 5424/2424> mem 0xbf7f0000-0xbf7fffff irq 17 at device 0.0 on pci1
ath0: [ITHREAD]
ath0: AR5413 mac 10.0 RF5424 phy 6.1
ath0: bad series0 hwrate 0x1b, tries 1 ts_status 0x0
ath0: bad series0 hwrate 0x1b, tries 1 ts_status 0x0
ath0: bad series3 hwrate 0x1b, tries 2 ts_status 0x0
ath0: bad series0 hwrate 0x1b, tries 1 ts_status 0x0
ath0: bad series2 hwrate 0x1c, tries 4 ts_status 0x0
ath0: bad series3 hwrate 0x1b, tries 2 ts_status 0x0
ath0: bad series3 hwrate 0x1b, tries 2 ts_status 0x0
ath0: bad series3 hwrate 0x1b, tries 2 ts_status 0x0
ath0: bad series3 hwrate 0x1b, tries 2 ts_status 0x0

====================================================
ifconfig:

ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 2290
       ether 00:15:af:xx:xx:xx
       media: IEEE 802.11 Wireless Ethernet autoselect mode 11g
       status: associated
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
       ether 00:15:af:xx:xx:xx
       inet xx.xx.xx.xx netmask 0xfffffff8 broadcast xx.xx.xx.xx
       media: IEEE 802.11 Wireless Ethernet OFDM/54Mbps mode 11g
       status: associated
       ssid xx channel 3 (2422 Mhz 11g) bssid 00:1f:1f:xx:xx:xx
       regdomain 96 indoor ecm authmode WPA2/802.11i privacy ON
       deftxkey UNDEF TKIP 2:128-bit txpower 20 bmiss 7 scanvalid 450 bgscan
       bgscanintvl 300 bgscanidle 250 roam:rssi 7 roam:rate 5 protmode CTS
       wme roaming MANUAL
====================================================

--
Artem Naluzhnyy