Created attachment 851830 [details] vdsm log - source Description of problem: On failing migration, the user gets a non descriptive error, for example: Migration started (VM: nophpapp01, Source: novmnode1, Destination: novmnode2, User: edgarsm). Migration failed due to Error: Fatal error during migration. Trying to migrate to another Host (VM: nophpapp01, Source: novmnode1, Destination: novmnode2). Migration failed due to Error: Fatal error during migration (VM: nophpapp01, Source: novmnode1, Destination: novmnode2). How reproducible: 100% Actual results: The user can't understand the reason for the failure. Expected results: The user will get a message that will help him debug the problem.
I don't think seeing "libvirtError: Failed to inquire lock: No such process" in the UI would make it any more clear…. maybe we can add something generic like "check vdms, libvirt and qemu logs"…but that's about it.