panic: trap type 4, code=0, pc=ffffffff82327e20
Starting stack trace...
panic(ffffffff823b3950) at panic+0x14c sys/kern/subr_prf.c:218
kerntrap(ffff8000222d4cd0) at kerntrap+0x1c7 sys/arch/amd64/amd64/trap.c:316
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
pfi_ifhead_RB_REMOVE(ffffffff82939868,ffff800000b3ee00) at pfi_ifhead_RB_REMOVE+0x50 sys/net/pf_if.c:80
pfi_detach_ifgroup(ffff800000b28a00) at pfi_detach_ifgroup+0x11b pfi_kif_unref sys/net/pf_if.c:211 [inline]
pfi_detach_ifgroup(ffff800000b28a00) at pfi_detach_ifgroup+0x11b sys/net/pf_if.c:304
if_delgroup(ffff800000b32800,ffff800000b28a00) at if_delgroup+0x193 sys/net/if.c:2679
if_detach(ffff800000b32800) at if_detach+0x1ab sys/net/if.c:1042
tun_clone_destroy(ffff800000b32800) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:325
if_clone_destroy(ffff8000222d4f80) at if_clone_destroy+0x146 sys/net/if.c:1201
tun_dev_close(5d00,7) at tun_dev_close+0x140 sys/net/if_tun.c:476
spec_close(ffff8000222d5050) at spec_close+0x311 sys/kern/spec_vnops.c:560
VOP_CLOSE(fffffd806e84a418,7,fffffd807f7b79c0,ffff80002123d9b8) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177
vn_closefile(fffffd806b46bc00,ffff80002123d9b8) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd806b46bc00,ffff80002123d9b8) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614
fdrop(fffffd806b46bc00,ffff80002123d9b8) at fdrop+0xc2 sys/kern/kern_descrip.c:1279
closef(fffffd806b46bc00,ffff80002123d9b8) at closef+0x11c sys/kern/kern_descrip.c:1263
fdfree(ffff80002123d9b8) at fdfree+0xf4 sys/kern/kern_descrip.c:1195
exit1(ffff80002123d9b8,0,19,1) at exit1+0x330 sys/kern/kern_exit.c:198
postsig(ffff80002123d9b8,19) at postsig+0x59c sigexit sys/kern/kern_sig.c:1494 [inline]
postsig(ffff80002123d9b8,19) at postsig+0x59c sys/kern/kern_sig.c:1423
userret(ffff80002123d9b8) at userret+0x189 sys/kern/kern_sig.c:1914
Xsyscall() at Xsyscall+0x156
end of kernel
end trace frame: 0x7f7ffffe2ec0, count: 237
End of stack trace.