panic: unhandled af 241 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 298213 93442 0 0x14000 0x200 1 reaper *336935 5441 0 0x14000 0x200 0K softnet db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff821d4b63) at panic+0x15c sys/kern/subr_prf.c:207 unhandled_af(f1) at unhandled_af+0x16 pf_build_tcp(ffffffff82635b28,f1,fffffd806d90a8d0,fffffd806d90a8c0,0,0) at pf_build_tcp+0x3c8 pf_remove_state(fffffd8066920678) at pf_remove_state+0x9a pf_send_tcp sys/net/pf.c:2892 [inline] pf_remove_state(fffffd8066920678) at pf_remove_state+0x9a sys/net/pf.c:1382 pf_purge_expired_states(4) at pf_purge_expired_states+0x1ed pf_purge(ffffffff82625ad0) at pf_purge+0x3f sys/net/pf.c:1278 taskq_thread(ffff80000002b080) at taskq_thread+0x9c sys/kern/kern_task.c:369 end trace frame: 0x0, count: 7 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs.