panic: bad dir
Starting stack trace...
panic(ffffffff827db437) at panic+0x16f sys/kern/subr_prf.c:229
ufs_lookup() at ufs_lookup+0x169b ufs_dirbad sys/ufs/ufs/ufs_lookup.c:600 [inline]
ufs_lookup() at ufs_lookup+0x169b sys/ufs/ufs/ufs_lookup.c:435
VOP_LOOKUP(fffffd806fbd0510,ffff800033f668e0,ffff800033f66910) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
vfs_lookup(ffff800033f668b0) at vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566
namei(ffff800033f668b0) at namei+0x55a sys/kern/vfs_lookup.c:250
domkdirat(ffff80002a1fd008,ffffff9c,710364ede990,1ff) at domkdirat+0x79 sys/kern/vfs_syscalls.c:3058
syscall(ffff800033f66a90) at syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x710364edea00, count: 249
End of stack trace.
syncing disks...33 25 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1  giving up

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 50375c3b-e826-8a7e-06ca-b163c863336b
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 0x000f28a0: 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> show malloc
boot: illegal argument malloc
boot> show all pools
boot> machine ddbcpu 0
machine: syntax error
boot> trace
boot> machine ddbcpu 1
machine: syntax error
boot> trace