panic: solock: lock not held
Starting stack trace...
panic(ffffffff8254949d) at panic+0x155 sys/kern/subr_prf.c:229
rw_assert_wrlock(fffffd80770ef8f8) at rw_assert_wrlock+0xb7 sys/kern/kern_rwlock.c:388
somove(fffffd80667130e0,1) at somove+0x25d sbspace sys/sys/socketvar.h:209 [inline]
somove(fffffd80667130e0,1) at somove+0x25d sys/kern/uipc_socket.c:1487
sosplice(fffffd80667130e0,3,2169,fffffd805b964810) at sosplice+0x502 sys/kern/uipc_socket.c:1346
sosetopt(fffffd80667130e0,ffff,1023,fffffd8071b14b00) at sosetopt+0x7ec
sys_setsockopt(ffff80002172c000,ffff8000231d4f58,ffff8000231d4fb0) at sys_setsockopt+0x1f5 sys/kern/uipc_syscalls.c:1233
syscall(ffff8000231d5020) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xf464724f1c0, count: 249
End of stack trace.
syncing disks...27 20 1 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 544bf977-3f8b-74cf-3442-40330f689a98
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 0x000f24c0: 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 3.54
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