kern/120636: Ndis driver causes system to hang while bringing AirLink101-AWLC3026 card up

[Yuri]

The following reply was made to PR kern/120636; it has been noted by GNATS.

From: Yuri <yuri at tsoft.com>
To: bug-followup at FreeBSD.org
Cc:  
Subject: Re: kern/120636: Ndis driver causes system to hang while bringing
 AirLink101-AWLC3026 card up
Date: Tue, 26 Feb 2008 13:45:19 -0800

 There are numerous problems that I observe with this card.
 
 First some information.
 
 On the client host: when the driver loads in the presence of this card 
 dmesg is:
 ndis0: <Airlink101 802.11g Cardbus Adapter> mem 
 0x88000000-0x8800ffff,0x88010000-0x8801ffff irq 9 at device 0.0 on cardbus0
 ndis0: [ITHREAD]
 ndis0: NDIS API version: 5.1
 ndis0: using obsoleted if_watchdog interface
 ndis0: Ethernet address: 00:40:f4:e3:6b:4b
 
 On the AP side: FreeBSD access point is setup with the command:
 ifconfig ral0 inet 192.168.0.1 netmask 255.255.255.0 ssid freebsdap 
 wepmode on weptxkey 3 wepkey 3:0x3456789012 mode 11g mediaopt hostap
 
 On the AP side: 'ifconfig -v' prints:
 ral0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
         ether 00:18:f8:2e:40:25
         inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255
         media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap>
         status: associated
         ssid freebsdap channel 3 (2422 Mhz 11g) bssid 00:18:f8:2e:40:25
         authmode OPEN privacy ON deftxkey 3
         wepkey 1:104-bit
         wepkey 3:40-bit powersavemode OFF powersavesleep 100 txpower 50
         txpowmax 50.0 rtsthreshold 2346 fragthreshold 2346 bmiss 7
         scanvalid 60 bgscan bgscanintvl 300 bgscanidle 250 roam:rssi11a 7
         roam:rate11a 12 roam:rssi11b 7 roam:rate11b 1 roam:rssi11g 7
         roam:rate11g 5 -pureg protmode CTS -ht -htcompat -ampdu 
 ampdulimit 8k
         ampdudensity - -amsdu -shortgi htprotmode RTSCTS -puren -wme -burst
         -ff -dturbo -hidessid apbridge dtimperiod 1 doth inact bintval 100
 
 On the client host: I set it up the card to connect to "freebsdap" network:
 ifconfig ndis0 ssid freebsdap wepmode on weptxkey 3 wepkey 
 3:0x3456789012 authmode open
 ifconfig ndis0 mode 11g
 ifconfig ndis0 inet 192.168.0.2 netmask 255.255.255.0
 ifconfig ndis0 up
 
 Card's transmit light blinks few times and stops. Based on lights it 
 looks like card is connected.
 
 On the client host: 'ifconfig -v' prints:
 ndis0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
         ether 00:40:f4:e3:6b:4b
         inet 192.168.0.2 netmask 0xffffff00 broadcast 192.168.0.255
         media: IEEE 802.11 Wireless Ethernet autoselect mode 11g (DS/1Mbps)
         status: associated
         ssid freebsdap channel 3 (2422 Mhz 11g) bssid 00:18:f8:2e:40:25
         authmode OPEN privacy OFF deftxkey 3
         wepkey 3:40-bit powersavemode OFF powersavesleep 100 txpowmax 100
         rtsthreshold 2346 fragthreshold 2346 bmiss 7 mcastrate 1 
 scanvalid 60
         -bgscan bgscanintvl 300 bgscanidle 250 roam:rssi11a 14 
 roam:rate11a 12
         roam:rssi11b 14 roam:rate11b 1 roam:rssi11g 14 roam:rate11g 5 -pureg
         protmode CTS -wme -burst -ff -dturbo roaming AUTO bintval 100
 
 
 PROBLEM#1: On the client host: when I try to ping AP (ping 192.168.0.1) 
 I get 100% packet loss.
 Transmit light doesn't blink in sync with ping.
 
 On the client host: I reset the card: 'ifconfig ndis0 down; ifconfig 
 ndis0 sid ""'.
 
 On the client side: 'ifconfig -v' prints:
 ndis0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
         ether 00:40:f4:e3:6b:4b
         inet 192.168.0.2 netmask 0xffffff00 broadcast 192.168.0.255
         media: IEEE 802.11 Wireless Ethernet autoselect mode 11g (DS/1Mbps)
         status: no carrier
         ssid "" channel 3 (2422 Mhz 11g) bssid 00:00:00:00:00:00
         authmode OPEN privacy OFF deftxkey 3
         wepkey 3:40-bit powersavemode OFF powersavesleep 100 txpowmax 100
         rtsthreshold 2346 fragthreshold 2346 bmiss 7 mcastrate 1 
 scanvalid 60
         -bgscan bgscanintvl 300 bgscanidle 250 roam:rssi11a 14 
 roam:rate11a 12
         roam:rssi11b 14 roam:rate11b 1 roam:rssi11g 14 roam:rate11g 5 -pureg
         protmode CTS -wme -burst -ff -dturbo roaming AUTO bintval 100
 
 
 PROBLEM#2: On the client side: 'ifconfig ndis0 up scan' hangs. First 
 transmit light flashes
 few times but then command never returns and never prints anything.
 
 PROBLEM#3 (similar to PROBLEM#1): On the client host side: when I pull 
 the card out and put it back in and repeat the setup step (above)
 ping causes transmit light to flash in sync with ping few times and then 
 power light begins to flash for a while. And then power light stops 
 flashing.
 
 Also on the client host side every time when I ping AP dmesg gets:
 ndis0: link state changed to DOWN
 ndis0: link state changed to UP
 This seems very strange: why link state changes just because of ping?
 
 PROBLEM#4: I was also able to get kernel crash earlier. But I can;t 
 reproduce it now.
 I will append this PR when I am able to reproduce.
 
 PROBLEM#5: (from subject) I can't reproduce it now, but I will keep trying.
 
 Remko: please let me know if I can do something more to debug these 
 problems.