panic: trap type 4, code=0, pc=ffffffff81c86580
Starting stack trace...
panic(ffffffff83309542) at panic+0x1ba sys/kern/subr_prf.c:229
kerntrap(ffff80003c9f3520) at kerntrap+0x28b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
bpfdetach(ffff800001488800) at bpfdetach+0x40 sys/net/bpf.c:1778
if_detach(ffff800001488800) at if_detach+0x1bb sys/net/if.c:1214
tun_clone_destroy(ffff800001488800) at tun_clone_destroy+0x2aa sys/net/if_tun.c:346
if_clone_destroy(ffff80003c9f3710) at if_clone_destroy+0x1d7 sys/net/if.c:1403
sys_ioctl(ffff80002a7f0a60,ffff80003c9f38f0,ffff80003c9f3840) at sys_ioctl+0x5bf sys/kern/sys_generic.c:-1
syscall(ffff80003c9f38f0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c9f38f0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:579
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x331f7af6ef0, count: 247
End of stack trace.