panic: pfi_dynaddr_update Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:212 pfi_kif_update(ffff8000009a4e00) at pfi_kif_update+0x17a sys/net/pf_if.c:440 pfi_detach_ifnet(ffff8000009de000) at pfi_detach_ifnet+0x4d sys/net/pf_if.c:255 if_detach(ffff8000009de000) at if_detach+0x15d sys/net/if.c:1118 tun_clone_destroy(ffff8000009de000) at tun_clone_destroy+0x1c6 sys/net/if_tun.c:278 spec_close(ffff800015a027d8) at spec_close+0x3b0 sys/kern/spec_vnops.c:553 VOP_CLOSE(fffffd8038284538,2,fffffd803f7c6ba0,ffff8000ffff59d8) at VOP_CLOSE+0x64 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80300dfe98,ffff8000ffff59d8) at vn_closefile+0x14b vn_close sys/kern/vfs_vnops.c:289 [inline] vn_closefile(fffffd80300dfe98,ffff8000ffff59d8) at vn_closefile+0x14b sys/kern/vfs_vnops.c:575 fdrop(fffffd80300dfe98,ffff8000ffff59d8) at fdrop+0xc9 sys/kern/kern_descrip.c:1260 closef(fffffd80300dfe98,ffff8000ffff59d8) at closef+0x118 sys/kern/kern_descrip.c:1244 fdfree(ffff8000ffff59d8) at fdfree+0xf7 sys/kern/kern_descrip.c:1176 exit1(ffff8000ffff59d8,0,1) at exit1+0x329 sys/kern/kern_exit.c:196 sys_exit(ffff8000ffff59d8,ffff800015a02a80,ffff800015a02af0) at sys_exit+0x17 sys/kern/kern_exit.c:94 end trace frame: 0xffff800015a02b50, count: 0 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs.