invalid statistics for 80211node malloc type

[Sergey Kandaurov]

Hi,

After upgrading from 8-stable to 9-stable I noticed the
error in malloc(9) type 80211node counter. From vmstat -m:
         Type InUse MemUse HighUse Requests  Size(s)
    80211node 18446744073709551605 18014398509481852K       -        0

18446744073709551605/18014398509481852
1024.00000

18446744073709551605/2^64
.99999

2^64-18446744073709551605
11

Looks like it goes (u_long)negative or some such.

-- 
wbr,
pluknet