I tried creating an OpenBSD 7.3 virtual machine on my new computer (Arch Linux host) and the installer kept crashing with the error:

dc_atapi_start: not ready, st = 50
fatal protection fault in supervisor mode trap type 4 code 0 rip ffffffff810089d9 cs 8 rflags 10282 cr2 287eb3000 cpl 6 rsp ffff800014fd11a0
gssbase Oxffffffff818fbff0 kgsbase Ox0
panic: trap type 4, code=0, pc=ffffffff810089d9
syncing disks...12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 _