panic: softclock: invalid to_clock: 912418353
Starting stack trace...
panic(ffffffff82850def) at panic+0x16f sys/kern/subr_prf.c:229
softclock(0) at softclock+0x22d sys/kern/kern_timeout.c:759
softintr_dispatch(0) at softintr_dispatch+0xcd sys/arch/amd64/amd64/softintr.c:90
Xsoftclock() at Xsoftclock+0x27
Xspllower() at Xspllower+0x1d
printf(ffffffff8293d4ee) at printf+0x88 sys/kern/subr_prf.c:532
uvm_fault_unwire_locked(fffffd805efc73b0,9e96d44d000,9e96d64c000) at uvm_fault_unwire_locked+0x211
uvm_unmap_kill_entry_withlock(fffffd805efc73b0,fffffd8068dbee30,0) at uvm_unmap_kill_entry_withlock+0x6b sys/uvm/uvm_map.c:1925
uvm_map_teardown(fffffd805efc73b0) at uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd805efc73b0) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2565
uvmspace_free(fffffd805efc73b0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3497
reaper(ffff80002a146548) at reaper+0x19a sys/kern/kern_exit.c:463
end trace frame: 0x0, count: 246
End of stack trace.
syncing disks...12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12  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 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 0x000f27f0: 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