panic: trap type 6, code=10, pc=e9779
Starting stack trace...
panic(ffffffff82fdb3ac) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff8000323f74f0) at kerntrap+0x29b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
acpi_pdirpa() at acpi_pdirpa+0xd55ea
rt_clone(ffff8000323f77c8,ffff8000323f7840,0) at rt_clone+0x98 sys/net/route.c:383
rtalloc(ffff8000323f7840,1,0) at rtalloc+0xb6 rt_match sys/net/route.c:360 [inline]
rtalloc(ffff8000323f7840,1,0) at rtalloc+0xb6 sys/net/route.c:489
icmp_reflect(fffffd8068d6ee00,0,0) at icmp_reflect+0x278
icmp_error(fffffd806c8e7800,3,3,0,0) at icmp_error+0x73
udp_input(ffff8000323f7c28,ffff8000323f7c34,11,2) at udp_input+0x1a34 sys/netinet/udp_usrreq.c:593
ip_deliver(ffff8000323f7c28,ffff8000323f7c34,11,2,1) at ip_deliver+0x447
ip_ours(ffff8000323f7c28,ffff8000323f7c34,0,0) at ip_ours+0xcb sys/netinet/ip_input.c:258
ip_input_if(ffff8000323f7c28,ffff8000323f7c34,0,0,ffff80000170c000) at ip_input_if+0x47c
ipv4_input(ffff80000170c000,fffffd806c8e7800) at ipv4_input+0x50 sys/netinet/ip_input.c:337
ether_input(ffff80000170c000,fffffd806c8e7800) at ether_input+0x6e4
tun_dev_write(5d00,ffff8000323f7fa8,0,2) at tun_dev_write+0x301 sys/net/if_tun.c:914
spec_write(ffff8000323f7e00) at spec_write+0x120 sys/kern/spec_vnops.c:302
VOP_WRITE(fffffd806e75e048,ffff8000323f7fa8,11,fffffd807f7d3340) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
vn_write(fffffd806bcc8268,ffff8000323f7fa8,0) at vn_write+0x1d1 sys/kern/vfs_vnops.c:408
dofilewritev(ffff8000ffffc7a8,c8,ffff8000323f7fa8,0,ffff8000323f8060) at dofilewritev+0x23c sys/kern/sys_generic.c:380
sys_write(ffff8000ffffc7a8,ffff8000323f8110,ffff8000323f8060) at sys_write+0xa2 sys/kern/sys_generic.c:300
syscall(ffff8000323f8110) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff8000323f8110) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x64fc1d1f0d0, count: 235
End of stack trace.

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 2c48b237-609e-0a7d-d6ca-08d70f46a694
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 3.67
boot> set $lines = 0
set: syntax error
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