Panic with iwi

Hi all,

I'm currently on travel and staying at Parc 55 Hotel in San Francisco. ;-)
Anyway, whenevere I try to connect hotel's wifi network, I get the following
panic with iwi, rev 1.55.
Back traces where hand written down, so expcect typo.

Panic: mutex iwi0 not owned at /usr/src/sys/modules/iwi/../../dev/iwi/if_iwi.c:960

panic(..)
_mtx_assert(c368f400,1,c0996e4a,3c0,c07aa498,...) at _mtx_assert+0x8d
iwi_newstate(c368e004,2,c0,c3a82122,0,...) at iwi_newstate+0x40
ieee80211_sta_join1(c3a820000,c3a5,bb2e,c3a5bb3f,1) at ieee80211_sta_join1+0x1a9
ieee80211_sta_join(c368e004,c3a5bb00,c07e5c76,434,0,c086594000,c367e004,c396a600,e295d54,c391ee00) at ieee80211_sta_join+0x1d4
sta_age(c3655800,db312c84,c0645227,c368e004,db312c68,...) at sta_age+0x3ca
ieee80211_scan_timeout(c368e004,db312c68,80246,c0863ee4,db312c84,...) at ieee80211_scan_timeout+0x1c
ieee80211_node_timeout(c368e004,0,c07d6354,ef,0,...) at ieee80211_node_timeout+0x17
softclock(0,0,c07d1d8a,471,c356e064,...) at softclock+0x299
ithread_loop(c35704e0,db312d38,c07d1b08,315,c3571559,..) at ithread_loop+0xb5
fork_exit(c056de20, c35704e0, db312d38) at fork_exit+0xb8
fork_trampline() at fork_trampline+0x8
--- trap 0, eip = 0, esp = 0xdb312d70, ebp = 0 ---


dmesg:
iwi0: <Intel(R) PRO/Wireless 2200BG> mem 0xcfeff000-0xcfefffff irq 11 at device 5.0 on pci1
iwi0: Ethernet address: 00:0e:35:c2:a2:7b
iwi0: [ITHREAD]

Thanks in advance,
 Haro
=------------------------------------------------------------------------------
           _ _    Munehiro (haro) Matsuda
 -|- /_\  |_|_|   Internet Solution Dept., KGT Inc.
 /|\ |_|  |_|_|   2-8-8 Shinjuku Shinjuku-ku Tokyo 160-0022, Japan
                  Tel: +81-3-3225-0767  Fax: +81-3-3225-0740