> This is a -EBUSY. Is there anything magic about mfn 188d903? It just looks > like plain RAM in the E820 table.
> Have you got dom0 configured to use linear p2m mode? Without it, dom0 can > only have a maximum of 512GB of RAM. > ~Andrew No special configuration for dom0, actually, the server has only 128GB for RAM. And the server can boot successfully with Linux kernel v4.3 as the dom0. Liang
