Hi All,
Could anyone kindly let me know why my APs (Ath9k) wmac baseband watchdog gets triggered as below when some clients roaming under these APs?
Tue May 19 03:36:24 2020 kern.debug kernel: [ 2477.270000] ath: phy0:
Tue May 19 03:36:24 2020 kern.debug kernel: [ 2477.270000] ==== BB update: BB status=0x04008009 ====
Tue May 19 03:36:24 2020 kern.debug kernel: [ 2477.270000] ath: phy0: ** BB state: wd=1 det=1 rdar=0 rOFDM=0 rCCK=8 tOFDM=0 tCCK=0 agc=4 src=0 **
Tue May 19 03:36:24 2020 kern.debug kernel: [ 2477.270000] ath: phy0: ** BB WD cntl: cntl1=0xffff0085 cntl2=0x00000004 **
Tue May 19 03:36:24 2020 kern.debug kernel: [ 2477.270000] ath: phy0: ** BB mode: BB_gen_controls=0x00003ac0 **
Tue May 19 03:36:24 2020 kern.debug kernel: [ 2477.270000] ath: phy0: ** BB busy times: rx_clear=2%, rx_frame=100%, tx_frame=0% **
Tue May 19 03:36:24 2020 kern.debug kernel: [ 2477.270000] ath: phy0: ==== BB update: done ====
Tue May 19 03:36:24 2020 kern.debug kernel: [ 2477.270000]
Tue May 19 03:36:24 2020 kern.debug kernel: [ 2477.270000] ath: phy0: BB_WATCHDOG: Skipping interrupts
My question is,
(1) what is the "BB status=0x04008009" standing for?
(2) BB busy times: rx_clear=2%, rx_frame=100%, tx_frame=0% ** Does it mean the rx frame is full? However the iPerf traffic is not not so high, only 3Mbps
Thanks in advance
Hi community, according to what I found that this issue is related with ANI as you could see below. especially it always happens during ccklevel turning from level 4 to 3. Any thought please kindly let me know. Thanks.
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.950000] ath: phy0: listenTime=426 OFDM:0 errs=199/s CCK:4 errs=39/s ofdm_turn=1
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.950000] ath: phy0: **** ccklevel 4=>3, rssi=0[lo=7 hi=40]
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.950000] ath: phy0: ** ch 2437: level 4=>3[def:2] firstep[level]=10 ini=8
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.950000] ath: phy0: ** ch 2437: level 4=>3[def:2] firstep_low[level]=10 ini=8
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.950000] ath: phy0: ANI parameters: SI=0, ofdmWS=on FS=3 MRCcck=off listenTime=426 ofdmErrs=85 cckErrs=17
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.950000] ath: phy0: disable IER
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.950000] ath: phy0: ** ch 2437: MRC CCK: off=>on
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.950000] ath: phy0: ANI parameters: SI=0, ofdmWS=on FS=3 MRCcck=on listenTime=426 ofdmErrs=85 cckErrs=17
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.950000] ath: phy0: Calibration @9359095 finished: ani, caldone: true
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.950000] ath: phy0: enable IER
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.950000] ath: phy0: AR_IMR 0x81810175 IER 0x1
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.950000] ath: phy0: slot: 3 tsf: 93861518064 tsftu: 91661638
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.960000] ath: phy0: slot: 4 tsf: 93861529666 tsftu: 91661650
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.970000] ath: phy0: disable IER
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.970000] ath: phy0:
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.970000] ==== BB update: BB status=0x04008009 ====
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.970000] ath: phy0: ** BB state: wd=1 det=1 rdar=0 rOFDM=0 rCCK=8 tOFDM=0 tCCK=0 agc=4 src=0 **
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.970000] ath: phy0: ** BB WD cntl: cntl1=0xffff0085 cntl2=0x00000004 **
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.970000] ath: phy0: ** BB mode: BB_gen_controls=0x00003ac0 **
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.970000] ath: phy0: ** BB busy times: rx_clear=0%, rx_frame=100%, tx_frame=0% **
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.970000] ath: phy0: ==== BB update: done ====
Wed May 20 21:34:38 2020 kern.debug kernel: [93890.970000]
I have disabled ANI and let it run under traffic around 3Mbps for about 20 hours, so far it seems there is no hit in base-band watchdog anymore. I am going to let it run even longer to see if it is consistent.
However just an another topic, I still want to bring ANI back. Could anyone kindly let me know how to improve ANI? I have compared my local ANI source code with the latest openwrt 19.07 and they are exactly the same. Any idea?