panic: trap type 6, code=10, pc=e9779
Starting stack trace...
panic(ffffffff82fdb3ac) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff80002a34fe90) at kerntrap+0x29b sys/arch/amd64/amd64/trap.c:327
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
acpi_pdirpa() at acpi_pdirpa+0xd55ea
rt_clone(ffff80002a350168,fffffd8055c1c9f0,0) at rt_clone+0x98 sys/net/route.c:383
route_mpath(fffffd8055c1c9d8,ffff80002a3502bc,0,0) at route_mpath+0x170 rt_match sys/net/route.c:360 [inline]
route_mpath(fffffd8055c1c9d8,ffff80002a3502bc,0,0) at route_mpath+0x170 rtalloc_mpath sys/net/route.c:476 [inline]
route_mpath(fffffd8055c1c9d8,ffff80002a3502bc,0,0) at route_mpath+0x170 sys/net/route.c:255
in_pcbselsrc(fffffd806ab6c0f4,ffff80002a3502b8,fffffd8055c1c960) at in_pcbselsrc+0x250
rip_output(fffffd80708cf300,ffff800010fc4fc0,ffff80002a3502b8,4734) at rip_output+0x2bf sys/netinet/raw_ip.c:310
rip_send(ffff800010fc4fc0,fffffd80708cf300,0,0) at rip_send+0x13d sys/netinet/raw_ip.c:628
sosend(ffff800010fc4fc0,0,ffff80002a3504b8,0,0,0) at sosend+0xa40
dofilewritev(ffff80002d80af98,8,ffff80002a3504b8,0,ffff80002a350570) at dofilewritev+0x23c sys/kern/sys_generic.c:380
sys_write(ffff80002d80af98,ffff80002a350620,ffff80002a350570) at sys_write+0xa2 sys/kern/sys_generic.c:300
syscall(ffff80002a350620) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a350620) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x13902a64f20, count: 243
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 479bd2e4-6073-186a-8c25-a69e4074584d
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 $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