uvm_fault(0xfffffb806d19d2f0, 0x798e2663, 0, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff8184bea9 cs 8 rflags 10202 cr2 798e2663 cpl 0 rsp ffff8000380d5230
gsbase 0xffffffff83972ff0  kgsbase 0x0
panic: trap type 6, code=0, pc=ffffffff8184bea9
Starting stack trace...
panic(ffffffff834be1ec) at panic+0x1ba sys/kern/subr_prf.c:229
kerntrap(ffff8000380d5180) at kerntrap+0x2fb
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
dtioctl(21e5f,80184404,ffff8000380d5480,81,ffff8000380d6a80) at dtioctl+0x489 dt_ioctl_probe_enable sys/dev/dt/dt_dev.c:613 [inline]
dtioctl(21e5f,80184404,ffff8000380d5480,81,ffff8000380d6a80) at dtioctl+0x489 sys/dev/dt/dt_dev.c:328
VOP_IOCTL(fffffb806c397558,80184404,ffff8000380d5480,81,fffffb8007ffd820,ffff8000380d6a80) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264
vn_ioctl(fffffb8070e14710,80184404,ffff8000380d5480,ffff8000380d6a80) at vn_ioctl+0xea sys/kern/vfs_vnops.c:537
sys_ioctl(ffff8000380d6a80,ffff8000380d5650,ffff8000380d55a0) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1
syscall(ffff8000380d5650) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff8000380d5650) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4b60575b390, count: 248
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 0x000f2600: 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> show kasan
boot> trace
boot> show registers
boot>