panic: trap type 6, code=10, pc=3c729
Starting stack trace...
panic(ffffffff8282da9f) at panic+0x159 sys/kern/subr_prf.c:229
kerntrap(ffff80002c0ed0a0) at kerntrap+0x1c7 sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
acpi_pdirpa() at acpi_pdirpa+0x2859a
rt_match(fffffd8052c663c0,0,1,0) at rt_match+0xc3 rt_clone sys/net/route.c:383 [inline]
rt_match(fffffd8052c663c0,0,1,0) at rt_match+0xc3 sys/net/route.c:358
route_mpath(fffffd8052c663a8,fffffd8057ad3624,0,0) at route_mpath+0x8b sys/net/route.c:255
in_pcbselsrc(ffff80002c0ed458,fffffd8057ad3620,fffffd8052c66330) at in_pcbselsrc+0x1b7 sys/netinet/in_pcb.c:975
in_pcbconnect(fffffd8052c66330,fffffd8057ad3600) at in_pcbconnect+0xe8 sys/netinet/in_pcb.c:523
udp_connect(fffffd8059053008,fffffd8057ad3600) at udp_connect+0xa4 sys/netinet/udp_usrreq.c:1196
sys_connect(ffff80002a67bc48,ffff80002c0ed650,ffff80002c0ed5a0) at sys_connect+0x238 sys/kern/uipc_syscalls.c:422
syscall(ffff80002c0ed650) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x6b30e4f1d10, 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 e4c28bce-9379-8bb2-f2c8-a7cf484f58e0
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 0x000f27f0: 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