LOR wlan0 wi0

[Sam Leffler]

Robert wrote:
> Greetings
> 
> I have just upgraded a laptop on my network to current:
> 
> [root at hp] ~# uname -a
> FreeBSD hp.shasta204.local 8.0-BETA2 FreeBSD 8.0-BETA2 #1: Fri Aug  7
> 11:15:24 PDT 2009     root at vaio.shasta204.local:/usr/ob
> j/usr/src/sys/VESA  i386
> 
> I have made the changes in rc.conf after reading UPDATING and rc.conf
> defaults. Here is the bits from rc.conf
> 
> wlans_wi0=wlan0   # I have tried with quotes around wlan0 with 
>                   # no difference. 
> ifconfig_wlan0="DHCP ssid MY_SSID channel any wepmode on \
> deftxkey 1 wepkey 0xSecretNumber78bf" 
> 
> # ifconfig_re0="DHCP"
> 
> My wlan0 interface comes up but never retrieves an IP from the router. 
> 
> [root at hp] ~# ifconfig -a
> plip0: flags=8810<POINTOPOINT,SIMPLEX,MULTICAST> metric 0 mtu 1500
> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
>         options=3<RXCSUM,TXCSUM>
>         inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
>         inet6 ::1 prefixlen 128
>         ether 00:09:5b:25:5e:b3
>         media: IEEE 802.11 Wireless Ethernet autoselect mode 11b
>         status: associated
> wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> 1500 ether 00:09:5b:25:5e:b3
>         inet 0.0.0.0 netmask 0xff000000 broadcast 255.255.255.255
>         media: IEEE 802.11 Wireless Ethernet DS/11Mbps mode 11b
>         status: associated
>         ssid MY_SSID channel 11 (2462 Mhz 11b) bssid 00:1c:df:f9:ad:fc
>         country US authmode OPEN privacy ON deftxkey 1 wepkey 1:104-bit
>         txpower 0 bmiss 7 scanvalid 60
> 
> Searching dmesg I see this
> 
> wlan0: Ethernet address: 00:09:5b:25:5e:b3
> lock order reversal:
>  1st 0xc2c04014 wi0_com_lock (wi0_com_lock)
> @ /usr/src/sys/net80211/ieee80211_scan.c:806 2nd 0xc2bf2008 wi0
> (network driver) @ /usr/src/sys/dev/wi/if_wi.c:1083 KDB: stack
> backtrace:
> db_trace_self_wrapper(c0c7746e,cca4ea78,c08c1435,c08b217b,c0c7a303,...)
> at db_trace_self_wrapper+0x26
> kdb_backtrace(c08b217b,c0c7a303,c292f228,c2929040,cca4ead4,...) at
> kdb_backtrace+0x29
> _witness_debugger(c0c7a303,c2bf2008,c2af88d0,c2929040,c0c6775c,...) at
> _witness_debugger+0x25
> witness_checkorder(c2bf2008,9,c0c6775c,43b,0,...) at
> witness_checkorder+0x839
> _mtx_lock_flags(c2bf2008,0,c0c6775c,43b,c2bf2008,...) at
> _mtx_lock_flags+0xc4
> wi_raw_xmit(c2cc5000,c2cd0000,cca4ebba,10,c2c9c2a4,...) at
> wi_raw_xmit+0x3e
> ieee80211_send_probereq(c2cc5000,c2c9c2a4,c0bfd600,c0bfd600,c2ac2018,...)
> at ieee80211_send_probereq+0x488
> ieee80211_probe_curchan(c2c9c000,0,c0c8aa85,326,cca4ec30,...) at
> ieee80211_probe_curchan+0x93
> scan_curchan(c2ac2000,190,c0c8aa85,396,246,...) at scan_curchan+0x49
> scan_task(c2ac2000,1,c0c78c6a,54,c2af4d1c,...) at scan_task+0x33a
> taskqueue_run(c2af4d00,c2af4d1c,0,c0c6a13b,0,...) at
> taskqueue_run+0x10b
> taskqueue_thread_loop(c2c04074,cca4ed38,c0c6f7cc,33e,c0dc60a0,...) at
> taskqueue_thread_loop+0x68 fork_exit(c08ba5b0,c2c04074,cca4ed38) at
> fork_exit+0xb8 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip
> = 0, esp = 0xcca4ed70, ebp = 0 --- Starting Network: lo0.
> 
> The PCMCIA is and older Netgear 802.11b that was working fine on 7
> stable. I have searched the archives and tried changing things in
> rc.conf but I can not seem to make this work.
> 
> 
> Any help or direction will be greatly appreciated.

Ignore the LOR.  The first thing to do is simplify your config; remove 
crypto.  If you can pass data frames then your problem is in the crypto 
setup.  If not then you have unencrypted data to examine for problems.

Use tools/tools/net80211/wlanstats to check for errors.  You can trace 
packet traffic with tcpdump to see if frames are moving.

You also don't identify your card.  wi in 8.0 works with a subset of the 
cards in RELENG_7 so your card may not work correctly--though since you 
appear to have associated that doesn't seem like the issue (cards that 
don't work are unlikely to successfully associate).

	Sam