Hi!

When this happens, can things re-associate?

Can yuo do this:

sysctl dev.ath.0.txagg=1

(and dev.ath.1, dev.ath.2, etc if you have more than one physical
atheros NIC in your AP) and paste the results?



-a



On 5 September 2014 06:24, Alex Deiter <alex.dei...@gmail.com> wrote:
> 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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