error message when unload the nat module

[bycn82]

*Hi ,when I unload the ipfw_nat module, and I noticed below message , it is
correct because I did not release the member for the NAT setting, but my
question is "on cpu 4"?  yes, I have 4 CPU on this machine, but why it is
on CPU#4?Nov 23 07:34:09 Dfly kernel: IP firewall unloaded malloc_uninit:
-2208 bytes of 'IpFw/IpAcct' still allocated on cpu 4*

*Regards,*
*Bill Yuan*
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