login: uvm_fault(0xfffffd806c2ef200, 0x0, 0, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff828f47b8 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80002a3b6660
gsbase 0xffffffff837c5ff0  kgsbase 0x0
panic: trap type 6, code=0, pc=ffffffff828f47b8
Starting stack trace...
panic(ffffffff833c98d0) at panic+464
kerntrap(ffff80002a3b65b0) at kerntrap+779
alltraps_kern_meltdown() at alltraps_kern_meltdown+123
dt_ioctl_record_stop(ffff800001496000) at dt_ioctl_record_stop+264
dtclose(11e5f,1,2000,ffff8000fffe6d20) at dtclose+265
spec_close(ffff80002a3b6760) at spec_close+1126
VOP_CLOSE(fffffd805f031968,1,fffffd80097fb2d8,ffff8000fffe6d20) at VOP_CLOSE+306
vn_closefile(fffffd806c568528,ffff8000fffe6d20) at vn_closefile+299
fdrop(fffffd806c568528,ffff8000fffe6d20) at fdrop+289
closef(fffffd806c568528,ffff8000fffe6d20) at closef+402
fdfree(ffff8000fffe6d20) at fdfree+278
exit1(ffff8000fffe6d20,0,0,1) at exit1+1398
sys_exit(ffff8000fffe6d20,ffff80002a3b6ad0,ffff80002a3b6a20) at sys_exit+26
syscall(ffff80002a3b6ad0) at syscall+2839
Xsyscall() at Xsyscall+296
end of kernel
end trace frame: 0x725486a22d10, count: 242
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 43b93b83-f320-801a-a1ee-23eab263a335
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 0x000f26e0: 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