panic: trap type 6, code=10, pc=e9509
Starting stack trace...
panic(ffffffff82fdaecb) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff8000371b6bb0) 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(ffff8000371b6e88,fffffd806f1ebc60,0) at rt_clone+0x98 sys/net/route.c:383
route_mpath(fffffd806f1ebc48,fffffd80660a6824,0,0) at route_mpath+0x170 rt_match sys/net/route.c:360 [inline]
route_mpath(fffffd806f1ebc48,fffffd80660a6824,0,0) at route_mpath+0x170 rtalloc_mpath sys/net/route.c:476 [inline]
route_mpath(fffffd806f1ebc48,fffffd80660a6824,0,0) at route_mpath+0x170 sys/net/route.c:255
in_pcbselsrc(ffff8000371b6f78,fffffd80660a6820,fffffd806f1ebbd0) at in_pcbselsrc+0x250
in_pcbconnect(fffffd806f1ebbd0,fffffd80660a6800) at in_pcbconnect+0x11a sys/netinet/in_pcb.c:522
udp_connect(ffff800010fdaa70,fffffd80660a6800) at udp_connect+0xe3 sys/netinet/udp_usrreq.c:1170
sys_connect(ffff800030986a58,ffff8000371b7170,ffff8000371b70c0) at sys_connect+0x345 sys/kern/uipc_syscalls.c:422
syscall(ffff8000371b7170) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff8000371b7170) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x89ef08edb40, 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 f8e08a03-81bc-3227-53c0-939594373760
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