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Opened 7 years ago

Closed 7 years ago

Last modified 4 years ago

#9200 closed defect (wontfix)

MadWiFi Adhoc Contention Issue

Reported by: pmcdowell@… Owned by: developers
Priority: normal Milestone: Barrier Breaker 14.07
Component: packages Version: Trunk
Keywords: madwifi adhoc r26391 Cc: bprodoehl@…, dlewanda@…

Description

Description

When I bring up a second radio in my adhoc WiFi setup, the board hangs.

Openwrt Version

OpenWrt version : bleeding edge (Attitude Adjustment) r26391
MadWiFi version : kmod-madwifi - 2.6.31.14+r3314-5
Uname -a output : Linux OpenWrt 2.6.31.14 #3 SMP PREEMPT Thu Apr 7 09:34:39 EDT 2011 armv6l GNU/Linux

Hardware Information

Hardware : Gateworks GW2388-SP216-A
CPU : Cavium Networks CNS3000
WiFi Card : Ubiquity SR-2

Configuration

The configuration files, network and wirless are essentially identical on both boxes. The main difference is the ipaddr field. All else is the same.

/etc/config/network

config 'interface' 'loopback'
    option 'ifname' 'lo'
    option 'proto' 'static'
    option 'ipaddr' '127.0.0.1'
    option 'netmask' '255.0.0.0'

config 'interface' 'lan'
    option 'ifname' 'eth0'
    option 'type' 'bridge'
    option 'proto' 'static'
    option 'netmask' '255.255.255.0'
    option 'ipaddr' '192.168.0.25'   
    option 'gateway' '192.168.0.10'
    option 'broadcast' '192.168.0.255'
    option 'dns' '192.168.0.10'

config 'route'
    option 'interface' 'lan'
    option 'target' '192.168.202.0'
    option 'netmask' '255.255.255.0'
    option 'gateway' '192.168.0.10'

/etc/config/wireless

config 'wifi-device' 'wifi0'
        option 'type' 'atheros'
        option 'channel' '6'
        option 'txpower' '12'
        option 'diversity' '0'
        option 'txantenna' '2'
        option 'rxantenna' '2' 
                                        
config 'wifi-interface'
        option 'device' 'wifi0'
        option 'network' 'lan'
        option 'mode' 'adhoc'
        option 'ssid' 'xNode'
        option 'bursting' 1'

Commands Issued

wlanconfig ath0 create wlandev wifi0 wlanmode adhoc
iwconfig ath0 channel 6 essid backhaul
ifconfig ath0 192.168.2.25

Attachments (0)

Change History (5)

comment:1 Changed 7 years ago by anonymous

It may not be clear. I have two separate GW-2388 boards. There is a single Ubiquity SR-2 in each. (It is not the case of two SR-2s in a single GW board ).

comment:2 follow-up: Changed 7 years ago by nbd

Does the same happen with ath5k as well?

comment:3 in reply to: ↑ 2 Changed 7 years ago by anonymous

Replying to nbd:

Does the same happen with ath5k as well?

There were some bugs in ath5k drivers with respect to simultaneous STA/AP. As a result, we moved away from ath5k. I have not tested with ath5k.

comment:4 Changed 7 years ago by nbd

  • Resolution set to wontfix
  • Status changed from new to closed

madwifi development has stopped, consider switching to ath5k.
the latest changes should have improved ath5k stability considerably

comment:5 Changed 4 years ago by jow

  • Milestone changed from Attitude Adjustment 12.09 to Barrier Breaker 14.07

Milestone Attitude Adjustment 12.09 deleted

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