crash again.. this time on 6.0

[Jason]

Dont know if anyone remember or not, but I had a crash back on freebsd 5.4 I believe. I 
upgraded to 6.0 and had a crash after 65 days, 23:00:02.

but heres the trace from it below.

jason at monsterjam jason $ uname -a
FreeBSD monsterjam.org 6.0-STABLE FreeBSD 6.0-STABLE #0: Sat Nov 19 14:21:32 EST 2005     
root at monsterjam.org:/usr/obj/usr/src/sys/BEAST  i386

db> trace
Tracing pid 68153 tid 100298 td 0xc338aa80
kdb_enter(c0846bdd) at kdb_enter+0x2b
panic(c0842de7,c0846227,c0845f95,36a,c275b33c) at panic+0x127
mtx_destroy(c43e5144,0) at mtx_destroy+0x5c
in_pcbdetach(c43e50b4,c2991000,c2991000,14,e8b4cb3c) at in_pcbdetach+0x1b4
tcp_close(c2991000,e8b4ca98,1,0,0) at tcp_close+0x94
tcp_input(c3ec5100,14,c069a5b8,8e103942,0) at tcp_input+0x139b
ip_input(c3ec5100) at ip_input+0x5a1
div_output(c28d4b20,c3ec5100,c2609430,0,e8b4cc08) at div_output+0x1ff
div_send(c28d4b20,0,c3ec5100,c2609430,0) at div_send+0x3f
sosend(c28d4b20,c2609430,e8b4cc3c,c3ec5100,0) at sosend+0x5e3
kern_sendit(c338aa80,3,e8b4ccbc,0,0) at kern_sendit+0x104
sendit(c338aa80,3,e8b4ccbc,0,bfbde948) at sendit+0x163
sendto(c338aa80,e8b4cd04,6,171f7c,292) at sendto+0x4d
syscall(3b,3b,bfbf003b,1,28) at syscall+0x22f
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (133, FreeBSD ELF32, sendto), eip = 0x2811f447, esp = 0xbfbde88c,
ebp = 0xbfbee938 ---
db> 



regards,
Jason