panic: ifa_update_broadaddr does not support dynamic length
Starting stack trace...
panic(ffffffff82834f2f) at panic+0x159 sys/kern/subr_prf.c:229
ifa_update_broadaddr(ffff800000ddc000,ffff800000eb6f00,ffff8000377f3
710) at ifa_update_broadaddr+0x6a sys/net/if.c:3315
in_ioctl(80206913,ffff8000377f3700,ffff800000ddc000,1) at in_ioctl+0x5cf sys/netinet/in.c:313
ifioctl(fffffd8056112bf8,80206913,ffff8000377f3700,ffff80002a66f218) at ifioctl+0x104c pru_control sys/sys/protosw.h:378 [inline]
ifioctl(fffffd8056112bf8,80206913,ffff8000377f3700,ffff80002a66f218) at ifioctl+0x104c sys/net/if.c:2449
sys_ioctl(ffff80002a66f218,ffff8000377f38e0,ffff8000377f3830) at sys_ioctl+0x4a5
syscall(ffff8000377f38e0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xc094dad5920, count: 250
End of stack trace.
syncing disks...35 22  done

dump to dev 4,1 not possible
rebooting...
SeaBIOS (version 1.8.2-google)
Total RAM Size = 0x0000000080000000 = 2048 MiB
CPUs found: 2     Max CPUs supported: 2
SeaBIOS (version 1.8.2-google)
Machine UUID 8a8635c2-f252-d190-235a-0f50a6ed73cd
found virtio-scsi at 0:3
virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0
virtio-scsi blksize=512 sectors=4194304 = 2048 MiB
drive 0x000f27c0: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304
Sending Seabios boot VM event.
Booting from Hard Disk 0...
>> OpenBSD/amd64 BOOT 3.65
boot> set $maxwidth = 0
set: syntax error
boot> show panic
boot: illegal argument panic
boot> trace
boot> show registers
boot> show proc
boot> ps
boot> show all locks
boot> show malloc
boot> show all pools
boot> machine ddbcpu 0
machine: syntax error
boot> trace
boot> machine ddbcpu 1
machine: syntax error
boot> trace