My /var/log/messages log is being flooded with kernel messages showing the following messages
Aug 1 11:22:52 host43 kernel: System RAM resource 48000000 – 4fffffff cannot be added Aug 1 11:22:52 host43 kernel: xen_balloon: reserve_additional_memory: add_memory() failed: –17
Doing a search I found a thread from xen-devel that talks a bit about it. I’m not sure if this is related to the same issue or if that issue was ever fixed. When I cat current_kb and target_kb the values don’t match, they are just barely off. I have not tried setting them to match yet.