[rdo-list] Controller node unexpectedly reboots

Hello, I have an RDO packstack Newton setup with 1 controller node and 4 compute nodes, all on VMs run by KVM. The cinder volume service is on the controller node as well. Periodically, the controller node reboots with no relevant message in /var/log/messages or in other log files. Any hints on troubleshooting this issue are appreciated. Thanks. -- Laurentiu Soica