strange panic

[Anders Andersson]

Hi,

I have gotten this panic on ultra10:

db> trace
panic() at panic+0xcc
trap() at trap+0x3bc
-- memory address not aligned sfar=0xc2ddcb1c sfsr=0x4002d %o7=0xc012e8c0 --
ipfw_ctl() at ipfw_ctl+0x174
rip_ctloutput() at rip_ctloutput+0x164
sogetopt() at sogetopt+0x38
getsockopt() at getsockopt+0xb0
syscall() at syscall+0x2b4
-- syscall (118, FreeBSD ELF64, getsockopt) %o7=0x1032c0 --
userland() at 0x108598
user trace: trap %o7=0x1032c0
pc 0x108598, sp 0x7fdfffff121
pc 0x107468, sp 0x7fdfffff1f1
pc 0x1079ec, sp 0x7fdfffff2b1
pc 0x1001dc, sp 0x7fdfffff371
pc 0, sp 0x7fdfffff431
done

I couldn't get a proper crash dump and am not sure this is good for anyone 
at all? I cannot reproduce it but I get this every night.

What can I do to be more helpful here?
-- 
Anders Andersson
<anders at andersa.net>