IWI lockup

[Don Wilde]

Hi, folks -

I seem to be having new problems with iwi since my last few cvsup's of
-STABLE and portupgrade.

Symptom is that it locks up (hard; hit the Big Red Button) after doing
detect of my network connection (which fails because it is not
connected). This lockup happens 75% of the time, and when it does
succeed to full boot, I get:

$ uname -a
FreeBSD localhost 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #3: Fri Nov  3
23:49:12 CST 2006     din at localhost:/usr/obj/usr/src/sys/LYNX  i386

and in dmesg:

[snip]
iwi0: <Intel(R) PRO/Wireless 2200BG> mem 0xdfcfd000-0xdfcfdfff irq 17
at device 3.0 on pci3
iwi0: Ethernet address: 00:13:ce:79:f8:65
[snip]
iwi0: iwi_cmd: cmd 6 not sent, busy
iwi0: device configuration failed
DHCPREQUEST on iwi0 to 255.255.255.255 port 67

DHCPREQUEST on iwi0 to 255.255.255.255 port 67

DHCPACK from 192.168.10.1

bound to 192.168.10.101 -- renewal in 302400 seconds.

lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
    inet6 ::1 prefixlen 128
    inet 127.0.0.1 netmask 0xff000000
bfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
    options=8<VLAN_MTU>
    ether 00:14:22:dd:3b:5a
    media: Ethernet autoselect (none)
    status: no carrier
iwi0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
    inet 192.168.10.101 netmask 0xffffff00 broadcast 192.168.10.255
    ether 00:13:ce:79:f8:65
    media: IEEE 802.11 Wireless Ethernet autoselect
    status: associated
    ssid unwired channel 11 bssid 00:13:46:14:73:02
    authmode OPEN privacy ON deftxkey 1 wepkey 1:40-bit txpowmax 100
    bmiss 10 protmode CTS bintval 100

This is on a Dell Inspiron 6000 with Centrino 2200G chip. I'm using
the iwi-firmware-kmod variant. This was working before; I have not
seen this 'iwi0: iwi_cmd: cmd 6 not sent, busy' before. UPDATING says
nothing about changes since 4/18/2006.

Any suggestions? TIA!

Don