panic: trap type 6, code=10, pc=e9509
Starting stack trace...
panic(ffffffff82fdaecb) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff8000371d5010) 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(ffff8000371d52e8,ffff8000371d5360,0) at rt_clone+0x98 sys/net/route.c:383
rtalloc(ffff8000371d5360,1,0) at rtalloc+0xb6 rt_match sys/net/route.c:360 [inline]
rtalloc(ffff8000371d5360,1,0) at rtalloc+0xb6 sys/net/route.c:489
icmp_reflect(fffffd805e7bb400,0,0) at icmp_reflect+0x278
icmp_error(fffffd8073772200,3,3,0,0) at icmp_error+0x73
pf_test_rule(ffff8000371d55f8,ffff8000371d5700,ffff8000371d5708,ffff8000371d56e8,ffff8000371d56c8,2) at pf_test_rule+0xc6b
pf_test(2,1,ffff800001155000,ffff8000371d5878) at pf_test+0x23a5 sys/net/pf.c:7684
ip_input_if(ffff8000371d5878,ffff8000371d5884,0,0,ffff800001155000) at ip_input_if+0x17e sys/netinet/ip_input.c:467
ipv4_input(ffff800001155000,fffffd80556f8900) at ipv4_input+0x50 sys/netinet/ip_input.c:337
ether_input(ffff800001155000,fffffd80556f8900) at ether_input+0x6e4
tun_dev_write(5d06,ffff8000371d5bf8,0,2) at tun_dev_write+0x301 sys/net/if_tun.c:914
spec_write(ffff8000371d5a50) at spec_write+0x120 sys/kern/spec_vnops.c:302
VOP_WRITE(fffffd8069b63060,ffff8000371d5bf8,11,fffffd807f7d3820) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
vn_write(fffffd80799e22f8,ffff8000371d5bf8,0) at vn_write+0x1d1 sys/kern/vfs_vnops.c:408
dofilewritev(ffff80003379a078,c8,ffff8000371d5bf8,0,ffff8000371d5cb0) at dofilewritev+0x23c sys/kern/sys_generic.c:380
sys_write(ffff80003379a078,ffff8000371d5d60,ffff8000371d5cb0) at sys_write+0xa2 sys/kern/sys_generic.c:300
syscall(ffff8000371d5d60) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff8000371d5d60) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xc2beaf8280, count: 236
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 50375c3b-e826-8a7e-06ca-b163c863336b
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