Date: Fri, 5 Sep 2014 17:24:45 +0400 From: Alex Deiter <alex.deiter@gmail.com> To: freebsd-wireless@freebsd.org Subject: [ath] AR9227 hang: ath_rate_findrate: switching quickly.. Message-ID: <CAAi9siYROfG7Pjg=MLibXLWKDAO5UnPafS2ZJ-SxQ8oN1=JCMA@mail.gmail.com>
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Hello,
Please help me figure out what's wrong:
FreeBSD 11.0-CURRENT r270733M amd64, PCI / Atheros 9227, 802.11n hostap mode
Time to time network traffic between clients and AP stops:
Sep 5 16:18:31 blackbird kernel: wlan0: [84:7a:88:70:c6:cd] power save
mode off, 1 sta's in ps mode
Sep 5 16:18:31 blackbird kernel: wlan0: [84:7a:88:70:c6:cd]
ath_rate_findrate: switching quickly..
Sep 5 16:18:31 blackbird kernel: wlan0: [84:7a:88:70:c6:cd]
ath_rate_tx_complete: size 1600 (519 bytes) OK rate/short/long 7 MCS/0/1
nframes/nbad [1/0]
Sep 5 16:18:31 blackbird kernel: wlan0: [84:7a:88:70:c6:cd] power save
mode on, 2 sta's in ps mode
Sep 5 16:18:31 blackbird kernel: wlan0: [84:7a:88:70:c6:cd] power save
mode off, 1 sta's in ps mode
Sep 5 16:18:31 blackbird kernel: wlan0: [84:7a:88:70:c6:cd] power save
mode on, 2 sta's in ps mode
Sep 5 16:18:31 blackbird kernel: wlan0: [84:7a:88:70:c6:cd] power save
mode off, 1 sta's in ps mode
Sep 5 16:18:31 blackbird kernel: wlan0: [84:7a:88:70:c6:cd]
ath_rate_findrate: switching quickly..
Sep 5 16:18:31 blackbird kernel: wlan0: [84:7a:88:70:c6:cd]
ath_rate_tx_complete: size 1600 (305 bytes) OK rate/short/long 7 MCS/0/1
nframes/nbad [1/0]
Sep 5 16:18:31 blackbird kernel: wlan0: [84:7a:88:70:c6:cd]
ath_rate_findrate: switching quickly..
Sep 5 16:18:31 blackbird kernel: wlan0: [84:7a:88:70:c6:cd]
ath_rate_tx_complete: size 250 (114 bytes) OK rate/short/long 4 MCS/0/1
nframes/nbad [1/0]
Sep 5 16:18:31 blackbird kernel: wlan0: [84:7a:88:70:c6:cd] power save
mode on, 2 sta's in ps mode
Sep 5 16:18:32 blackbird kernel: wlan0: [84:7a:88:70:c6:cd] power save
mode off, 1 sta's in ps mode
it is the same case with all clients: android, windows, FreeBSD.
Workaround - reboot AP system :-(
Thank you!
Details:
pciconf:
ath0@pci0:4:0:0: class=0x028000 card=0x0300168c chip=0x002d168c
rev=0x01 hdr=0x00
vendor = 'Atheros Communications Inc.'
device = 'AR9227 Wireless Network Adapter'
class = network
ifconfig:
wlan0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0
mtu 1500
ether f8:1a:67:89:0c:b8
media: IEEE 802.11 Wireless Ethernet autoselect mode 11ng <hostap>
status: running
ssid blackbird channel 4 (2427 MHz 11g ht/40+) bssid
f8:1a:67:89:0c:b8
regdomain ETSI country RU indoor ecm authmode WPA1+WPA2/802.11i -wps
-tsn privacy MIXED deftxkey 3
TKIP 2:128-bit
TKIP 3:128-bit powersavemode OFF powersavesleep 100 txpower 30
txpowmax 50.0 -dotd rtsthreshold 2346 fragthreshold 2346 bmiss 7
11a ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6
11b ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
11g ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
turboA ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6
turboG ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
sturbo ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6
11na ucast NONE mgmt 12 MCS mcast 12 MCS maxretry 6
11ng ucast NONE mgmt 2 MCS mcast 2 MCS maxretry 6
half ucast NONE mgmt 3 Mb/s mcast 3 Mb/s maxretry 6
quarter ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
scanvalid 60 -bgscan bgscanintvl 300 bgscanidle 250
roam:11a rssi 7dBm rate 12 Mb/s
roam:11b rssi 7dBm rate 1 Mb/s
roam:11g rssi 7dBm rate 5 Mb/s
roam:turboA rssi 7dBm rate 12 Mb/s
roam:turboG rssi 7dBm rate 12 Mb/s
roam:sturbo rssi 7dBm rate 12 Mb/s
roam:11na rssi 7dBm MCS 1
roam:11ng rssi 7dBm MCS 1
roam:half rssi 7dBm rate 6 Mb/s
roam:quarter rssi 7dBm rate 3 Mb/s
-pureg protmode CTS ht htcompat ampdu ampdulimit 64k ampdudensity 8
amsdu shortgi htprotmode RTSCTS -puren -smps -rifs wme burst -dwds
-hidessid apbridge dtimperiod 1 doth -dfs inact bintval 100
AC_BE cwmin 4 cwmax 6 aifs 3 txopLimit 0 -acm ack
cwmin 4 cwmax 10 aifs 3 txopLimit 0 -acm
AC_BK cwmin 4 cwmax 10 aifs 7 txopLimit 0 -acm ack
cwmin 4 cwmax 10 aifs 7 txopLimit 0 -acm
AC_VI cwmin 3 cwmax 4 aifs 1 txopLimit 94 -acm ack
cwmin 3 cwmax 4 aifs 2 txopLimit 94 -acm
AC_VO cwmin 2 cwmax 3 aifs 1 txopLimit 47 -acm ack
cwmin 2 cwmax 3 aifs 2 txopLimit 47 -acm
groups: wlan
athstats:
317346 data frames received
432914 data frames transmit
543 tx frames with an alternate rate
29708 short on-chip tx retries
41739 long on-chip tx retries
5700 tx failed 'cuz too many retries
17 stuck beacon conditions
MCS4 current transmit rate
3 tx stopped 'cuz no xmit buffer
209 tx failed 'cuz destination filtered
2061 tx frames with no ack marked
421765 tx frames with short preamble
13990 rx failed 'cuz of bad CRC
1 rx failed 'cuz frame too short
1 rx failed 'cuz of PHY err
1 illegal service
162287 beacons transmitted
554 periodic calibrations
-0/+0 TDMA slot adjust (usecs, smoothed)
50 rssi of last ack
33 avg recv rssi
-96 rx noise floor
9348 tx frames through raw api
205506 A-MPDU sub-frames received
120913 Half-GI frames received
751 CRC errors for non-last A-MPDU subframes
172 CRC errors for last subframe in an A-MPDU
1 Frames received w/ STBC encoding
97566 Frames transmitted with HT Protection
6407 Number of frames retransmitted in software
336 Number of frames exceeding software retry
178990 A-MPDU sub-frame TX attempt success
5884 A-MPDU sub-frame TX attempt failures
900 A-MPDU TX frame failures
1514 cabq frames transmitted
137 cabq xmit overflowed beacon interval
1 OFDM weak signal detect
189 listen time
33 ANI disabled OFDM weak signal detect
741238 cumulative OFDM phy error count
346722 cumulative CCK phy error count
677 ANI forced listen time to zero
35612 missing ACK's
50495 RTS without CTS
73359 successful RTS
19322 bad FCS
21 average rssi (beacons only)
Antenna profile:
[0] tx 277449 rx 7401
[1] tx 0 rx 309945
some logs and outputs (debug messages, tcpdump, etc) also available here:
logs for windows client https://yadi.sk/d/_Sc9xCYkb6GLR
logs for android client https://yadi.sk/d/IL6qO9Ahb6GLW
--
Alex Deiter
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