On 10/10/2020 18:51, Sander Eikelenboom wrote: > Hi Igor/Jan, > > I tried to update my AMD machine to current xen-unstable, but > unfortunately the HVM guests don't boot after that. The guest keeps > using CPU-cycles but I don't get to a command prompt (or any output at > all). PVH guests run fine. > > Bisection leads to commit: > > 8efa46516c5f4cf185c8df179812c185d3c27eb6 > hvmloader: indicate ACPI tables with "ACPI data" type in e820 > > I tried xen-unstable with this commit reverted and with that everything > works fine. > > I attached the xl-dmesg output.
What guests are you using? Could you get serial output from the guest? Is it AMD specific? If it's a Linux guest could you get a stacktrace from the guest using xenctx? We have tested the change on all modern guests in our Citrix lab and haven't found any problem for several months. Igor
