Using a very recent 4.10-STABLE GENERIC kernel with ipfilter, I was getting these panics frequently. When I compile a kernel (using make {build,install,}kernel in /usr/src) I always compile all klds, so I don't believe I have anything out of sync. After I compiled a kernel identical to GENERIC except with DDB, call path was generic_bcopy fr_check ip6_input ip6intr swi_net_next Disabling ipfilter has made the panics go away, as of several days ago. Any thoughts? -- Christopher Vance