uvm_fault(0xfffffd806c2126f0, 0xdb, 0, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff82160ce7 cs 8 rflags 10246 cr2 db cpl 0 rsp ffff80003769a9e0
gsbase 0xffffffff834b0ff0  kgsbase 0x0
panic: trap type 6, code=0, pc=ffffffff82160ce7
Starting stack trace...
panic(ffffffff82fb82aa) at panic+0x1ba sys/kern/subr_prf.c:229
kerntrap(ffff80003769a930) at kerntrap+0x28b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
rtrequest(1,ffff80003769ab88,6,ffff80003769ab00,5) at rtrequest+0x7c7 sys/net/route.c:1008
rtm_output(ffff80000130bc00,ffff80003769ac30,ffff80003769ab88,6,5) at rtm_output+0x855 sys/net/rtsock.c:973
route_output(fffffd8071ad3b00,fffffd806715b808) at route_output+0x9ac sys/net/rtsock.c:878
route_send(fffffd806715b808,fffffd8071ad3b00,0,0) at route_send+0xd7 sys/net/rtsock.c:342
sosend(fffffd806715b808,0,ffff80003769ade8,0,0,0) at sosend+0xa40
sendit(ffff80002a4d0a40,6,ffff80003769aee0,0,ffff80003769af90) at sendit+0x721 sys/kern/uipc_syscalls.c:786
sys_sendto(ffff80002a4d0a40,ffff80003769b040,ffff80003769af90) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:564
syscall(ffff80003769b040) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd9f8e0c19e0, count: 245
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 1498d526-897b-4d0e-28be-a262cd523d51
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