>> Also, under QEMU, just do a reboot with hotplugged memory and you're in >> the very same situation. > > OK, I didn't know that. I thought the memory would be presented as a > normal memory after reboot. Thanks for the clarification. That's one of the cases where QEMU differs to actual hardware - it's not added to e820, so ACPI always probes+detects+adds DIMMs during boot. Some people (me :)) consider that a feature and not a BUG. -- Thanks, David / dhildenb