Reactos ACPI driver asserts at boot-time in Bus_PDO_QueryDeviceId when the driver is running the "Processor" detect module. This only happens in MSVC builds + VMware VM. a WinDBG bugcheck analysis is supplied.
This bug is easily reproducible, just install a MSVC build in any Vmware VM. First Install Stage goes well, but VM crashes at second install stage at boot time as explained.
This bug isn't critical, since doing a "kd> g" in WinDBG allows continue with OS boot.