Some/all uses of RawHide tcpdump on a current 2.2.* kernel on a Rawhide machine (2.2.5-ac3, Rawhide 1.3.2) produce this message in the kernel syslog. I report it in case it's of more than cosmetic irritation (tcpdump seems to work fine).
The kernel messages do not occur using kernel-2.2.5-4 and tcpdump-3.4-10 on a sparc64 machine. I presume that the annoying messages were cosmetic. Thanks for the report.