panic: trap type 6, code=10, pc=e9509
Starting stack trace...
panic(ffffffff82fdaecb) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff80002b756680) at kerntrap+0x29b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
acpi_pdirpa() at acpi_pdirpa+0xd537a
rt_clone(ffff80002b756958,ffff80002b756a58,0) at rt_clone+0x98 sys/net/route.c:383
route_mpath(ffff80002b756a40,fffffd806037c0e0,fffffd806037c0dc,0) at route_mpath+0x170 rt_match sys/net/route.c:360 [inline]
route_mpath(ffff80002b756a40,fffffd806037c0e0,fffffd806037c0dc,0) at route_mpath+0x170 rtalloc_mpath sys/net/route.c:476 [inline]
route_mpath(ffff80002b756a40,fffffd806037c0e0,fffffd806037c0dc,0) at route_mpath+0x170 sys/net/route.c:255
in_ouraddr(fffffd806037c000,ffff800001156800,ffff80002b756a40,0) at in_ouraddr+0xc2
ip_input_if(ffff80002b756b38,ffff80002b756b44,ffff80002c560000,0,ffff800001156800) at ip_input_if+0x422 sys/netinet/ip_input.c:508
ipv4_input(ffff800001156800,fffffd806037c000) at ipv4_input+0x50 sys/netinet/ip_input.c:337
ether_input(ffff800001156800,fffffd806037c000) at ether_input+0x6e4
tun_dev_write(5d03,ffff80002b756eb8,ffff80002c560000,2) at tun_dev_write+0x301 sys/net/if_tun.c:914
spec_write(ffff80002b756d10) at spec_write+0x120 sys/kern/spec_vnops.c:302
VOP_WRITE(fffffd806e6f4db0,ffff80002b756eb8,11,fffffd807f7d3410) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
vn_write(fffffd80792c9438,ffff80002b756eb8,0) at vn_write+0x1d1 sys/kern/vfs_vnops.c:408
dofilewritev(ffff8000ffff2a40,c8,ffff80002b756eb8,0,ffff80002b756f70) at dofilewritev+0x23c sys/kern/sys_generic.c:380
sys_write(ffff8000ffff2a40,ffff80002b757020,ffff80002b756f70) at sys_write+0xa2 sys/kern/sys_generic.c:300
syscall(ffff80002b757020) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002b757020) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xaee38d3dc30, count: 239
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 dc1537e2-3f8b-09d0-7a97-ada6c38139e5
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