panic: pool_do_get: pdppl free list modified: page 0xfffffd807a062000; item addr 0xfffffd807a062000; offset 0x0=0x11e57ed0 != 0xeadbb207b1bf517c
Starting stack trace...
panic(ffffffff8285c370) at panic+0x159 sys/kern/subr_prf.c:229
pool_do_get(ffffffff82da28c8,1,ffff80003297b9cc) at pool_do_get+0x434
pool_get(ffffffff82da28c8,1) at pool_get+0xba sys/kern/subr_pool.c:582
pmap_create() at pmap_create+0xeb sys/arch/amd64/amd64/pmap.c:1359
uvmspace_fork(ffff80002db80cb0) at uvmspace_fork+0x64 uvmspace_init sys/uvm/uvm_map.c:3302 [inline]
uvmspace_fork(ffff80002db80cb0) at uvmspace_fork+0x64 uvmspace_alloc sys/uvm/uvm_map.c:3280 [inline]
uvmspace_fork(ffff80002db80cb0) at uvmspace_fork+0x64 sys/uvm/uvm_map.c:3852
process_new(ffff80002a649240,ffff80002db80cb0,1) at process_new+0x3dc sys/kern/kern_fork.c:278
fork1(ffff80002a642048,1,ffffffff812c4690,0,ffff80003297bc50,0) at fork1+0x2ef sys/kern/kern_fork.c:399
syscall(ffff80003297bd00) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x76e1debeb850, count: 248
End of stack trace.
syncing disks...26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26  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 9c8ab089-5fb3-144b-a4ba-2e178800b25c
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> machine ddbcpu 0
machine: syntax error
boot> trace
|/-\|/-\|/booting hd0a:trace: -\|/open hd0a:trace: No such file or directory
 failed(2). will try /bsd
boot> machine ddbcpu 1
machine: syntax error
boot> trace