That is a result of running 'ifconfig wi0 list scan && ifconfig wi0 list scan' as root Jun 26 17:15:24 bugs kernel: lock order reversal: Jun 26 17:15:24 bugs kernel: 1st 0xc30c100c ieee80211com (802.11 com lock) @ /usr/src/sys/net80211/ieee80211_scan.c:381 Jun 26 17:15:24 bugs kernel: 2nd 0xc30c2400 wi0 (network driver) @ /usr/src/sys/dev/wi/if_wi.c:1033 Jun 26 17:15:24 bugs kernel: KDB: stack backtrace: Jun 26 17:15:24 bugs kernel: db_trace_self_wrapper(c0a8c189,d5e620b8,c07807de,c0a8e62d,c30c2400,...) at db_trace_self_wrapper+0x26 Jun 26 17:15:24 bugs kernel: kdb_backtrace(c0a8e62d,c30c2400,c2fca7c0,c0a50056,c0a7ede7,...) at kdb_backtrace+0x29 Jun 26 17:15:24 bugs kernel: witness_checkorder(c30c2400,9,c0a7ede7,409,d5e620f4,...) at witness_checkorder+0x6de Jun 26 17:15:24 bugs kernel: _mtx_lock_flags(c30c2400,0,c0a7ede7,409,c30ac400,...) at _mtx_lock_flags+0xbc Jun 26 17:15:24 bugs kernel: wi_start(c30ac400,cf,c309e400,c30c1004) at wi_start+0x37 Jun 26 17:15:24 bugs kernel: if_start(c30ac400,0,c0a991d3,17e,0,...) at if_start+0x89 Jun 26 17:15:24 bugs kernel: ieee80211_send_nulldata(c30c8000,6,c,8,0) at ieee80211_send_nulldata+0x1f4 Jun 26 17:15:24 bugs kernel: ieee80211_sta_pwrsave(c30c1004,1,c30c13ec,0,c2f8f800,...) at ieee80211_sta_pwrsave+0x212 Jun 26 17:15:24 bugs kernel: scan_restart(c2f8f800,c30c1004,c0a99cb4,17d,c072f525,...) at scan_restart+0x96 Jun 26 17:15:24 bugs kernel: ieee80211_start_scan(c30c1004,13,7fffffff,1,c30c1fe4,...) at ieee80211_start_scan+0x200 Jun 26 17:15:24 bugs kernel: ieee80211_ioctl(c30c1004,801c69ea,c32ae680,553,ffffffff,...) at ieee80211_ioctl+0x15c4 Jun 26 17:15:24 bugs kernel: wi_ioctl(c30ac400,801c69ea,c32ae680,c0b3aba4,c0a95722,...) at wi_ioctl+0x1be1 Jun 26 17:15:24 bugs kernel: in_control(c3623948,801c69ea,c32ae680,c30ac400,c35f8200,...) at in_control+0xda4 Jun 26 17:15:24 bugs kernel: ifioctl(c3623948,801c69ea,c32ae680,c35f8200,c35f8200,...) at ifioctl+0x323 Jun 26 17:15:24 bugs kernel: soo_ioctl(c330e1b0,801c69ea,c32ae680,c37ca900,c35f8200,...) at soo_ioctl+0x3c7 Jun 26 17:15:24 bugs kernel: kern_ioctl(c35f8200,3,801c69ea,c32ae680,0,...) at kern_ioctl+0x243 Jun 26 17:15:24 bugs kernel: ioctl(c35f8200,d5e62cfc,c,c0a5e2b3,c0b34df0,...) at ioctl+0x134 Jun 26 17:15:24 bugs kernel: syscall(d5e62d38) at syscall+0x2b3 Jun 26 17:15:24 bugs kernel: Xint0x80_syscall() at Xint0x80_syscall+0x20 Jun 26 17:15:24 bugs kernel: --- syscall (54, FreeBSD ELF32, ioctl), eip = 0x281674cf, esp = 0xbfbfd87c, ebp = 0xbfbfe0b8 --- Jun 26 17:15:27 bugs kernel: wi_scan_result Jun 26 17:15:27 bugs kernel: calling add_scan Jun 26 17:15:44 bugs kernel: wi_scan_result Jun 26 17:15:44 bugs kernel: calling add_scan PING lan_router (lan_router): 56 data bytes 64 bytes from lan_router: icmp_seq=1 ttl=254 time=8.385 ms 64 bytes from lan_router: icmp_seq=2 ttl=254 time=5.164 ms 64 bytes from lan_router: icmp_seq=0 ttl=254 time=2007.575 ms 64 bytes from lan_router: icmp_seq=4 ttl=254 time=9.503 ms 64 bytes from lan_router: icmp_seq=3 ttl=254 time=1016.770 ms 64 bytes from lan_router: icmp_seq=6 ttl=254 time=5.471 ms 64 bytes from lan_router: icmp_seq=7 ttl=254 time=3.324 ms 64 bytes from lan_router: icmp_seq=5 ttl=254 time=2010.439 ms 64 bytes from lan_router: icmp_seq=9 ttl=254 time=2.895 ms 64 bytes from lan_router: icmp_seq=10 ttl=254 time=7.795 ms 64 bytes from lan_router: icmp_seq=8 ttl=254 time=2012.017 ms 64 bytes from lan_router: icmp_seq=12 ttl=254 time=2.963 ms 64 bytes from lan_router: icmp_seq=13 ttl=254 time=47.558 ms 64 bytes from lan_router: icmp_seq=11 ttl=254 time=2053.425 ms 64 bytes from lan_router: icmp_seq=14 ttl=254 time=2008.302 ms 64 bytes from lan_router: icmp_seq=18 ttl=254 time=5.057 ms 64 bytes from lan_router: icmp_seq=19 ttl=254 time=5.860 ms 64 bytes from lan_router: icmp_seq=17 ttl=254 time=2009.765 ms 64 bytes from lan_router: icmp_seq=21 ttl=254 time=4.314 ms 64 bytes from lan_router: icmp_seq=22 ttl=254 time=6.703 ms 64 bytes from lan_router: icmp_seq=20 ttl=254 time=2009.930 ms 64 bytes from lan_router: icmp_seq=24 ttl=254 time=5.774 ms 64 bytes from lan_router: icmp_seq=25 ttl=254 time=6.620 ms 64 bytes from lan_router: icmp_seq=23 ttl=254 time=2059.031 ms 64 bytes from lan_router: icmp_seq=27 ttl=254 time=3.976 ms 64 bytes from lan_router: icmp_seq=28 ttl=254 time=11.254 ms 64 bytes from lan_router: icmp_seq=26 ttl=254 time=2014.882 ms 64 bytes from lan_router: icmp_seq=30 ttl=254 time=4.202 ms 64 bytes from lan_router: icmp_seq=31 ttl=254 time=7.182 ms 64 bytes from lan_router: icmp_seq=29 ttl=254 time=2010.951 ms 64 bytes from lan_router: icmp_seq=33 ttl=254 time=7.489 ms 64 bytes from lan_router: icmp_seq=34 ttl=254 time=7.471 ms 64 bytes from lan_router: icmp_seq=32 ttl=254 time=2010.167 ms 64 bytes from lan_router: icmp_seq=36 ttl=254 time=32.228 ms 64 bytes from lan_router: icmp_seq=39 ttl=254 time=6.855 ms 64 bytes from lan_router: icmp_seq=38 ttl=254 time=1010.849 ms 64 bytes from lan_router: icmp_seq=40 ttl=254 time=4.673 ms --- lan_router ping statistics --- 42 packets transmitted, 37 packets received, 11.9% packet loss round-trip min/avg/max/stddev = 2.895/660.725/2059.031/911.496 ms