Re: console freeze after "ifconfig wlan0 scan" with wi(4) pccard device

On Mon, Jan 10, 2011 at 09:22:58AM +0100, Bernhard Schmidt wrote:
> On Sunday, January 09, 2011 23:22:28 Anton Shterenlikht wrote:
> > On amd64 r217010 laptop (HP Compaq 6715s)
> > I'm trying to use this wi(4) device:
> > 
> > wi0: <The Linksys Group, Inc. Instant Wireless Network PC Card>
> >  at port 0x100-0x13f irq 20 function 0 config 1 on pccard0
> > 
> > I do
> > 
> > # ifconfig wlan0 create wlandev wi0
> > # ifconfig -a
> > bge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
> >        
> > options=8009b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LINKSTAT
> > E>
> >         ether 00:1a:4b:89:4b:4e
> >         inet 192.168.1.102 netmask 0xffffff00 broadcast 192.168.1.255
> >         media: Ethernet autoselect (100baseTX <full-duplex>)
> >         status: active
> > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
> >         options=3<RXCSUM,TXCSUM>
> >         inet 127.0.0.1 netmask 0xff000000
> >         inet6 ::1 prefixlen 128
> >         inet6 fe80::1%lo0 prefixlen 64 scopeid 0x8
> >         nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
> > wi0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 2290
> >         ether 00:06:25:10:56:3b
> >         media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
> >         status: no carrier
> > wlan0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
> >         ether 00:06:25:10:56:3b
> >         media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
> >         status: no carrier
> >         ssid "" channel 1 (2412 MHz 11b)
> >         country US authmode OPEN privacy OFF txpower 0 bmiss 7 scanvalid 60
> >         bintval 0
> > 
> > But after
> > 
> > # ifconfig wlan0 up scan
> > 
> > I get console freeze requiring cold reboot.
> > No panic, just a LOR:
> > 
> >  wi0: <The Linksys Group, Inc. Instant Wireless Network PC Card> at port
> > 0x100-0x13f irq 20 function 0 config 1 on pccard0 wlan0: Ethernet address:
> > 00:06:25:10:56:3b
> >  lock order reversal:
> >  1st 0xffffff80012be018 wi0_com_lock (wi0_com_lock) _at_
> > /usr/src/sys/net80211/ieee80211_scan.c:806 2nd 0xfffffe0001b8d010 wi0
> > (network driver) _at_ /usr/src/sys/dev/wi/if_wi.c:1083 KDB: stack backtrace:
> > [..]
> 
> This is a known LOR, many wireless do have that. It happens right after a scan 
> iteration if there is a network to connect to.
> 
> > In case it matters I've
> > 
> > hw.cbb.start_memory="0xf4800000"
> > 
> > in /boot/loader.conf, according to
> > http://www.freebsd.org/cgi/query-pr.cgi?pr=115623
> 
> Do you by any change have another device you can test the pccard slot with? 

Following some advice I read on the net, resetting
bios to default settings seems to help. So I don't
see this freeze anymore. I haven't investigated further.

I've got 2 more devices, but these aren't much help..

first:

wi0: <NEC Wireless Card CMZ-RT-WP> at port 0x100-0x13f irq 20 function 0 config 1 on pccard0
wi0: Sorry, this card is not supported (type 2, firmware ver 704)
device_attach: wi0 attach returned 45

second:

an0: <Cisco Systems 350 Series Wireless LAN Adapter> at port 0x100-0x13f irq 20 function 0 config 5 on pccard0
: record length mismatch -- expected 194, got 196 for Rid ff10
: record length mismatch -- expected 192, got 200 for Rid ff00
an0: got RSSI <-> dBM map
an0: supported rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
an0: Ethernet address: 00:0b:fd:7f:ae:3d
an0: [GIANT-LOCKED]
an0: record length mismatch -- expected 194, got 196 for Rid ff10
an0: record length mismatch -- expected 194, got 196 for Rid ff10
an0: record length mismatch -- expected 194, got 196 for Rid ff10
an0: record length mismatch -- expected 194, got 196 for Rid ff10

I'm struggling to make Aironet 350 work.
The best I can get is:

zzz# dhclient an0
DHCPREQUEST on an0 to 255.255.255.255 port 67
DHCPREQUEST on an0 to 255.255.255.255 port 67
DHCPACK from 192.168.1.1
bound to 192.168.1.103 -- renewal in 43200 seconds.

zzz# ifconfig an0
an0: flags=8847<UP,BROADCAST,DEBUG,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        ether 00:0b:fd:7f:ae:3d
        inet 192.168.1.103 netmask 0xffffff00 broadcast 192.168.1.255
        media: IEEE 802.11 Wireless Ethernet autoselect (DS/11Mbps)
        status: associated
        ssid  1:lagartixa channel 11 (2462 MHz 11b)
        stationname BUZI
        authmode SHARED privacy ON deftxkey 1 txpower 0 rtsthreshold 0
        fragthreshold 0 bmiss 0 ucastrate 0 mcastrate 0 mgmtrate 0 maxretry 0
        roaming DEVICE bintval 0

and I can see on the DHCP router (gateway):

DHCP Active IP Table 	  	 
DHCP Server IP Address:   192.168.1.1 	
Client Host Name 	IP Address 	MAC Address 	Expires 	
zzz 	192.168.1.103 	00:0b:fd:7f:ae:3d 	23:58:38

but still can't connect to the gateway:

PING 192.168.1.1 (192.168.1.1): 56 data bytes
ping: sendto: No route to host
ping: sendto: No route to host
ping: sendto: No route to host
^C
--- 192.168.1.1 ping statistics ---
3 packets transmitted, 0 packets received, 100.0% packet loss


> 
> Also, you might want to try 'ifconfig wlan0 ssid 
> somethingwhichdoesdefinitelynotexist up; ifconfig wlan0 list scan'
> instead of 'ifconfig wlan0 up scan'.


# ifconfig wlan0 ssid somethingwhichdoesdefinitely up
# ifconfig wlan0
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        ether 00:06:25:10:56:3b
        media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
        status: no carrier
        ssid somethingwhichdoesdefinitely channel 10 (2457 MHz 11b)
        country US authmode OPEN privacy OFF txpower 0 bmiss 7 scanvalid 60
        roaming MANUAL bintval 0
# ifconfig wlan0 list scan
#


By the way, can you recommend a pccard device with WPA
support, which is known to work on amd64 -current (or stable)?


many thanks for your help
anton


-- 
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 331 5944
Fax: +44 (0)117 929 4423